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Bioresource technology
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- Author:
- Shuang Wang; Bin Cao; Xinlin Liu; Lujiang Xu; Yamin Hu; Stephen Afonaa-Mensah; Abd El-Fatah Abomohra; Zhixia He; Qian Wang; Shannan Xu
- Source:
- Bioresource technology 2018 v.256 pp. 446-455
- ISSN:
- 0960-8524
- Subject:
- Ulva clathrata; X-ray diffraction; X-ray photoelectron spectroscopy; acids; ammonia; biofuels; catalysts; desorption; feedstocks; macroalgae; physicochemical properties; pyrolysis; scanning electron microscopy; temperature; transmission electron microscopy
- Abstract:
- ... The green macroalga Enteromorpha clathrata was pyrolyzed with or without catalysts at the temperature of 550 °C for producing high-quality bio-oil. The ZSM-5 and 1,2,3 mmol Mg-Ce/ZSM-5 catalysts were introduced to investigate the yields and components distribution of bio-oil. Increase of bio-oil production was obtained with the use of ZSM-5 and 1,2,3 mmol Mg-Ce/ZSM-5 catalysts. The 1 mmol Mg-Ce/ZS ...
- DOI:
- 10.1016/j.biortech.2018.01.134
- https://doi.org/10.1016/j.biortech.2018.01.134
- Author:
- Wei Yang; Jun Li; Qian Fu; Liang Zhang; Xun Zhu; Qiang Liao
- Source:
- Bioresource technology 2017 v.241 pp. 325-331
- ISSN:
- 0960-8524
- Subject:
- Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; catalysts; cathodes; ecosystem services; electrochemistry; heat treatment; kraft paper; microbial fuel cells; oxygen; pyrolysis
- Abstract:
- ... In this paper, we proposed a simple method for preparing a binder-free air-cathode using carbonized kraft paper as the support and iron (II) phthalocyanine (FePc) as the catalyst. The results indicated that the oxygen reduction reaction (ORR) performance of the air-cathodes was dependent on the fabrication steps. A cathode (KP-HT-FePc-HT) fabricated by pyrolyzing kraft paper at 1000°C followed by ...
- DOI:
- 10.1016/j.biortech.2017.05.063
- https://doi.org/10.1016/j.biortech.2017.05.063
- Author:
- Nidchakarn Theamwong; Wimonsiri Intarabumrung; Suwiwat Sangon; Suphattra Aintharabunya; Yuvarat Ngernyen; Andrew J. Hunt; Nontipa Supanchaiyamat
- Source:
- Bioresource technology 2021 v.341 pp. 125832
- ISSN:
- 0960-8524
- Subject:
- Cassia; Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; adsorption; antibiotics; ciprofloxacin; kinetics; methylene blue; pyrolysis; remediation; surface area; technology; toxicity
- Abstract:
- ... Waste Cassia bakeriana seed pods were used for porous carbon production in a facile pyrolysis process. The carbons were highly efficient adsorbents for methylene blue, congo red and ciprofloxacin antibiotic from aqueous media. The experimental results demonstrated that despite moderate surface area of 283.4 m²/g, KOH activated carbon (PSAC-KOH) exhibited the highest adsorption capacity for congo r ...
- DOI:
- 10.1016/j.biortech.2021.125832
- https://doi.org/10.1016/j.biortech.2021.125832
- Author:
- Li Wang; Peng Liang; Jian Zhang; Xia Huang
- Source:
- Bioresource technology 2011 v.102 no.8 pp. 5093-5097
- ISSN:
- 0960-8524
- Subject:
- X-ray photoelectron spectroscopy; X-ray diffraction; iron; EDTA (chelating agent); catalysts; electrodes; carbon; active sites; microbial fuel cells; catalytic activity; oxygen
- Abstract:
- ... A low-cost and effective iron-chelated catalyst was developed as an electrocatalyst for the oxygen reduction reaction (ORR) in microbial fuel cells (MFCs). The catalyst was prepared by pyrolyzing carbon mixed iron-chelated ethylenediaminetetraacetic acid (PFeEDTA/C) in an argon atmosphere. Cyclic voltammetry measurements showed that PFeEDTA/C had a high catalytic activity for ORR. The MFC with a P ...
- DOI:
- 10.1016/j.biortech.2011.01.025
- PubMed:
- 21324675
- https://doi.org/10.1016/j.biortech.2011.01.025
- Author:
- Wen Song; Baoyu Gao; Xing Xu; Lulu Xing; Shuang Han; Pijun Duan; Wuchang Song; Ruibao Jia
- Source:
- Bioresource technology 2016 v.210 pp. 123-130
- ISSN:
- 0960-8524
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; adsorption; biopolymers; dyes; methyl orange; pH; scanning electron microscopy; sorption isotherms; temperature; transmission electron microscopy; wastewater
- Abstract:
- ... In this work, a new kind of magnetic amine/Fe3O4 functionalized biopolymer resin (amine/Fe3O4-resin) was prepared and applied to remove various anionic dyes from water. Methyl Orange (MO), Reactive Brilliant Red K-2BP (RBR) and Acid Red 18 (AR) were selected as the typical anionic dye for this research. Meanwhile, amine/Fe3O4-resin was characterized by VSM, XRD, FT-IR, SEM, TEM and XPS. Three anio ...
- DOI:
- 10.1016/j.biortech.2016.01.078
- https://doi.org/10.1016/j.biortech.2016.01.078
- Author:
- Avinash Kadam; Rijuta Ganesh Saratale; Surendra Shinde; Jiwook Yang; Kyojung Hwang; Bhupendra Mistry; Ganesh Dattatraya Saratale; Saifullah Lone; Dae-Youg Kim; Jung-Suk Sung; Gajanan Ghodake
- Source:
- Bioresource technology 2019 v.273 pp. 386-393
- ISSN:
- 0960-8524
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorption; biomass; cellulose; cobalt oxide; iron oxides; models; nanoparticles; remediation; sorption isotherms; thermogravimetry; transmission electron microscopy; waste paper
- Abstract:
- ... Remediation of engineered-nanomaterials is an up-coming major environmental concern. This study demonstrates adsorptive-remediation of cobalt oxide nanoparticles (CoO NPs) from the water. The α-cellulose-fibers were extracted from waste-paper biomass (WP-αCFs) and magnetized with Fe₃O₄ NPs (M-WP-αCFs). The XRD, FT-IR, and TGA were performed for detailed characterization of the newly developed bioa ...
- DOI:
- 10.1016/j.biortech.2018.11.041
- https://doi.org/10.1016/j.biortech.2018.11.041
- Author:
- Fan, Ye; Wang, Bin; Yuan, Songhu; Wu, Xiaohui; Chen, Jing; Wang, Linling
- Source:
- Bioresource technology 2010 v.101 no.19 pp. 7661-7664
- ISSN:
- 0960-8524
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; adsorption; bamboos; carbon; charcoal; chloramphenicol; surface area; wastewater
- Abstract:
- ... This study described the adsorption of chloramphenicol (CAP) in wastewater on the renewable bioresource of bamboo charcoal (BC). Results showed that CAP adsorption on BC (Ln qe =1.272 Ln Ce +1.971) and H₂SO₄ modified BC (Ln qe =1.851 Ln Ce +0.659) were very slight, and on NaOH modified BC was significantly increased (Ln qe =0.344 Ln Ce +6.490). The adsorbents were characterized by N₂ adsorption-de ...
- DOI:
- 10.1016/j.biortech.2010.04.046
- PubMed:
- 20457515
- https://doi.org/10.1016/j.biortech.2010.04.046
- Author:
- Devarapaga Madhu; Supriya B. Chavan; Veena Singh; Bhaskar Singh; Yogesh C. Sharma
- Source:
- Bioresource technology 2016 v.214 pp. 210-217
- ISSN:
- 0960-8524
- Subject:
- Fourier transform infrared spectroscopy; Millettia pinnata; X-ray diffraction; X-ray photoelectron spectroscopy; biodiesel; catalysts; catalytic activity; crabs; esterification; feedstocks; nuclear magnetic resonance spectroscopy; oils; petroleum; refining; seeds; solid wastes; temperature; transesterification; India
- Abstract:
- ... Biodiesel has emerged as a prominent source to replace petroleum diesel. The cost incurred in the production of biodiesel is higher than that for refining of crude oil to obtain mineral diesel. The heterogeneous catalyst was prepared from crab shells by calcining the crushed mass at 800°C. The solid waste catalyst was characterized with XRD, XPS, BET, SEM–EDS, and FT-IR. Millettia pinnata (karanja ...
- DOI:
- 10.1016/j.biortech.2016.04.055
- https://doi.org/10.1016/j.biortech.2016.04.055
- Author:
- Linson Lonappan; Tarek Rouissi; Satinder Kaur Brar; Mausam Verma; Rao Y. Surampalli
- Source:
- Bioresource technology 2018 v.249 pp. 386-394
- ISSN:
- 0960-8524
- Subject:
- Fourier transform infrared spectroscopy; Pinus; X-ray diffraction; X-ray photoelectron spectroscopy; adsorption; biochar; diclofenac; feedstocks; grinding; hydrophobicity; ions; microparticles; models; moieties; pH; particle size; pig manure; scanning electron microscopy; thermodynamics; wood; zeta potential
- Abstract:
- ... Biochars were prepared from feedstocks pinewood and pig manure. Biochar microparticles obtained through grinding were evaluated for the removal of emerging contaminant diclofenac (DCF) and the underlying mechanism were thoroughly studied. Characterization of biochar was carried out using particle size analyzer, SEM, BET, FT-IR, XRD, XPS and zeta potential instrument. Pig manure biochar (BC-PM) exh ...
- DOI:
- 10.1016/j.biortech.2017.10.039
- https://doi.org/10.1016/j.biortech.2017.10.039
- Author:
- Han, Ting; Fan, Tongxiang; Chow, Suk-Kwun; Zhang, Di
- Source:
- Bioresource technology 2010 v.101 no.17 pp. 6829-6835
- ISSN:
- 0960-8524
- Subject:
- X-ray diffraction; X-ray photoelectron spectroscopy; absorption; anions; cations; crops; crystals; irradiation; lamps; metals; nitrogen; oxides; phosphorus; red light; seeds
- Abstract:
- ... Four typical kinds of crop seeds are studied as non-metallic bio-precursors to synthesize biogenic N-P-codoped TiO₂ (BNP-TiO₂). The as-prepared BNP-TiO₂ samples are characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), nitrogen-adsorption measurement and UV-Vis spectroscopy. The results show that BNP-TiO₂ possesses single anatase phase with mesopore structures, and nitr ...
- DOI:
- 10.1016/j.biortech.2010.03.107
- https://doi.org/10.1016/j.biortech.2010.03.107
- Author:
- Zhirou Wang; Hyun Min Jang
- Source:
- Bioresource technology 2022 v.351 pp. 127025
- ISSN:
- 0960-8524
- Subject:
- Fourier transform infrared spectroscopy; Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorption; biochar; comparative study; hydrogen bonding; hydrophobicity; levofloxacin; pig manure; pyrolysis; surface area; technology; temperature
- Abstract:
- ... This study evaluated the relationship between pyrolysis temperature (300–900 ℃), characteristics of swine manure (SM)-derived biochar (BC), and its adsorption of levofloxacin (LEV). The surface structure and chemistry of SM-derived BCs were characterized using Brunauer-Emmett-Teller analysis, scanning electron microscopy, Fourier-transform infrared spectroscopy, X-ray diffraction, Raman spectrosco ...
- DOI:
- 10.1016/j.biortech.2022.127025
- https://doi.org/10.1016/j.biortech.2022.127025
12. Conversion of lipids from wet microalgae into biodiesel using sulfonated graphene oxide catalysts
- Author:
- Jun Cheng; Yi Qiu; Jie Zhang; Rui Huang; Weijuan Yang; Zhentao Fan
- Source:
- Bioresource technology 2017 v.244 pp. 569-574
- ISSN:
- 0960-8524
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; biodiesel; catalysts; fatty acid methyl esters; graphene; graphene oxide; hydrophilicity; lipids; microalgae; scanning electron microscopes; sulfuric acid; thermogravimetry
- Abstract:
- ... Four solid acid catalysts including graphene oxide (GO), sulfonated graphene oxide (SGO), sulfonated graphene (SG), and sulfonated active carbon (SAC) were used to convert lipids in wet microalgae into biodiesel. The physiochemical properties of the catalysts were characterized with scanning electron microscope, X-ray diffraction, and thermogravimetric analysis. SGO provided the highest conversion ...
- DOI:
- 10.1016/j.biortech.2017.07.142
- https://doi.org/10.1016/j.biortech.2017.07.142
- Author:
- Luxin Zhang; Guoyun Xi; Jiaxin Zhang; Hongbing Yu; Xiaochang Wang
- Source:
- Bioresource technology 2017 v.224 pp. 656-661
- ISSN:
- 0960-8524
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; biomass; catalysts; catalytic activity; corn cobs; differential thermal analysis; furfural; hydroxymethylfurfural; lignocellulose; scanning electron microscopy; solvents; thermogravimetry; titration
- Abstract:
- ... A feasible approach was developed for the co-production of 5-hydroxymethylfurfural (5-HMF) and furfural from corncob via a new porous polytriphenylamine–SO3H (SPTPA) solid acid catalyst in lactone solvents. XRD, SEM, XPS, N2 adsorption–desorption, elemental analysis, TG–DTA, acid–base titration and FTIR spectroscopy techniques were used to characterize the catalyst. This study demonstrates and opt ...
- DOI:
- 10.1016/j.biortech.2016.11.097
- https://doi.org/10.1016/j.biortech.2016.11.097
- Author:
- Anup P. Tathod; Paresh L. Dhepe
- Source:
- Bioresource technology 2015 v.178 pp. 36-44
- ISSN:
- 0960-8524
- Subject:
- X-ray diffraction; X-ray photoelectron spectroscopy; agricultural wastes; alloys; arabinogalactans; arabinose; arabitol; bagasse; catalysts; fructose; galactitol; galactose; glucose; hydrogenation; inulin; mannitol; rice hulls; sorbitol; tin; transmission electron microscopy; wheat straw; xylan; xylitol; xylose
- Abstract:
- ... Promoter effect of Sn in the PtSn/γ-Al2O3 (AL) and PtSn/C bimetallic catalysts is studied for the conversion of variety of substrates such as, C5 sugars (xylose, arabinose), C6 sugars (glucose, fructose, galactose), hemicelluloses (xylan, arabinogalactan), inulin and agricultural wastes (bagasse, rice husk, wheat straw) into sugar alcohols (sorbitol, mannitol, xylitol, arabitol, galactitol). In al ...
- DOI:
- 10.1016/j.biortech.2014.10.036
- https://doi.org/10.1016/j.biortech.2014.10.036
- Author:
- Fan Yang; Shuaishuai Zhang; Yuqing Sun; Kui Cheng; Jiangshan Li; Daniel C.W. Tsang
- Source:
- Bioresource technology 2018 v.265 pp. 490-497
- ISSN:
- 0960-8524
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; adsorption; biochar; biomass; composite materials; copper; corn; corn stover; hydrophilicity; iron; lead; moieties; nanoparticles; scanning electron microscopy; thermogravimetry; transmission electron microscopy; wastes; wastewater treatment; zinc
- Abstract:
- ... Pyrolyzing low-cost agro-waste into biochar is a promising means for waste biomass utilization. This study engineers corn stalk-derived biochar with abundant hydrophilic functional groups as a support material for iron nanoparticles impregnation (nZVI-HCS). Surface chemistry and morphology of nZVI-HCS composites is characterized by SEM, TEM, TG, XRD, FTIR, XPS, and BET techniques, which helps to e ...
- DOI:
- 10.1016/j.biortech.2018.06.029
- https://doi.org/10.1016/j.biortech.2018.06.029
- Author:
- Narada Bombuwala Dewage; Achala S. Liyanage; Charles U. Pittman; Dinesh Mohan; Todd Mlsna
- Source:
- Bioresource technology 2018 v.263 pp. 258-265
- ISSN:
- 0960-8524
- Subject:
- Pseudotsuga menziesii; X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; adsorption; biochar; energy-dispersive X-ray analysis; ferric chloride; fluorides; hematite; magnetic separation; magnetism; models; nitrates; pH; pyrolysis; scanning electron microscopy; sorption isotherms; surface area
- Abstract:
- ... α-Fe₂O₃ and Fe₃O₄ dispersed on high surface area (663 m²/g) Douglas fir biochar (BC) was prepared for fast nitrate and fluoride ion removal from water using magnetic separations. This biochar, made originally at 900 °C, was impregnated with FeCl₃ and converted by pyrolysis at 600 °C to magnetic (494 m²/g) biochar (MBC). MBC and its precursor BC were characterized using SEM, SEM-EDX, STEM, SBET, PZ ...
- DOI:
- 10.1016/j.biortech.2018.05.001
- https://doi.org/10.1016/j.biortech.2018.05.001
- Author:
- Yanhong Zu; Jianyuan Tang; Wanchun Zhu; Min Zhang; Gang Liu; Yan Liu; Wenxiang Zhang; Mingjun Jia
- Source:
- Bioresource technology 2011 v.102 no.19 pp. 8939-8944
- ISSN:
- 0960-8524
- Subject:
- X-ray diffraction; X-ray photoelectron spectroscopy; adsorption; catalysts; catalytic activity; desorption; heat treatment; hosts; infrared spectroscopy; methanol; nanoparticles; oxides; soybean oil; thermogravimetry; transesterification; transmission electron microscopy
- Abstract:
- ... Graphite oxide (GO) supported CaO catalysts were prepared and successfully applied to the transesterification of soybean oil with methanol. The supports and resultant catalysts were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), N₂ adsorption, thermogravimetry (TG), X-ray photoelectron spectroscopy (XPS), temperature-programed desorption (TPD) and Fourier-tran ...
- DOI:
- 10.1016/j.biortech.2011.07.032
- PubMed:
- 21824767
- https://doi.org/10.1016/j.biortech.2011.07.032
- Author:
- Ganesh K. Parshetti; Maria Stefanie Suryadharma; Thi Phuong Thuy Pham; Russell Mahmood; Rajasekhar Balasubramanian
- Source:
- Bioresource technology 2015 v.178 pp. 19-27
- ISSN:
- 0960-8524
- Subject:
- X-ray diffraction; X-ray photoelectron spectroscopy; biomass; catalysts; food conversion; food waste; heat treatment; hydroxymethylfurfural; phosphates; prices; scanning electron microscopy; sorption; zirconium
- Abstract:
- ... A novel thermochemical conversion route has been developed that yields 5-hydroxymethylfurfural (HMF) from food waste biomass (FWB) in the presence of a heterogeneous catalysts (zirconium phosphate (ZrP)). The ZrP catalyst was prepared by precipitation followed by calcination at 400 (ZrP-400) and 600°C (ZrP-600) and was characterized by SEM, XRD, XPS, N2 sorption and NH3-TPD. The optimized reaction ...
- DOI:
- 10.1016/j.biortech.2014.10.066
- https://doi.org/10.1016/j.biortech.2014.10.066
- Author:
- Xiaofen Hu; Junfeng Su; Amjad Ali; Zhao Wang; Zizhen Wu
- Source:
- Bioresource technology 2021 v.323 pp. 124608
- ISSN:
- 0960-8524
- Subject:
- Pseudomonas; X-ray diffraction; X-ray photoelectron spectroscopy; adsorption; ammonium nitrogen; biomineralization; coprecipitation; denitrification; fluorides; groundwater; nitrate nitrogen; nitrification; nitrogen; nitrogen balance; response surface methodology; technology
- Abstract:
- ... Pseudomonas sp. HXF1, a strain capable of heterotrophic nitrification, aerobic denitrification (HNAD), and biomineralization was identified and employed for the simultaneous removal of ammonia nitrogen (NH₄⁺-N) and fluoride (F⁻). It removed 99.2% of NH₄⁺-N without accumulation of nitrous nitrogen (NO₂⁻-N) and nitrate nitrogen (NO₃⁻-N), while removed 87.3% of F⁻. Response surface methodology (RSM) ...
- DOI:
- 10.1016/j.biortech.2020.124608
- https://doi.org/10.1016/j.biortech.2020.124608
- Author:
- Wen Song; Baoyu Gao; Tengge Zhang; Xing Xu; Xin Huang; Huan Yu; Qinyan Yue
- Source:
- Bioresource technology 2015 v.190 pp. 550-557
- ISSN:
- 0960-8524
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorption; aqueous solutions; chromium; corn stover; effluents; kinetics; models; pH; scanning electron microscopy; sorption isotherms; transmission electron microscopy
- Abstract:
- ... Easily separable amine-functionalized magnetic corn stalk composites (AF-MCS) were employed for effective adsorption and reduction of toxic hexavalent chromium [Cr(VI)] to nontoxic Cr(III). The saturated magnetization of AF-MCS reached 6.2emu/g, and as a result, it could be separated from aqueous solution by a magnetic process for its superparamagnetism. The studies of various factors influencing ...
- DOI:
- 10.1016/j.biortech.2015.01.103
- https://doi.org/10.1016/j.biortech.2015.01.103
- Author:
- Yongxing Chen; Lin Dong; Jiaxin Miao; Jun Wang; Chaosheng Zhu; Yongyan Xu; GuangYing Chen; Jin Liu
- Source:
- Bioresource technology 2019 v.294 pp. 122148
- ISSN:
- 0960-8524
- Subject:
- X-ray diffraction; X-ray photoelectron spectroscopy; aromatic compounds; biofuels; catalysts; copper; corn straw; cupric oxide; gas chromatography-mass spectrometry; hydrothermal liquefaction; synergism; temperature
- Abstract:
- ... In this study, hydrothermal liquefaction (HTL) of corn straw at different operation temperatures, reaction time and catalyst dosage were investigated, and the main product was heavy bio-oil. Results showed that CuO + NaOH have a synergistic effect in the HTL of corn straw. The product distribution and composition were also studied during the process, in which aromatic compounds achieved the highes ...
- DOI:
- 10.1016/j.biortech.2019.122148
- https://doi.org/10.1016/j.biortech.2019.122148
- Author:
- Wenjia Wang; Youtong Xu; Xiaoxiao Wang; Bokun Zhang; Wenying Tian; Jinglai Zhang
- Source:
- Bioresource technology 2018 v.250 pp. 474-480
- ISSN:
- 0960-8524
- Subject:
- Nannochloropsis; X-ray diffraction; X-ray photoelectron spectroscopy; acid value; catalysts; cobalt; gas chromatography-mass spectrometry; iron; liquefaction; manganese; microalgae; molybdenum; nickel; temperature; titanium dioxide; viscosity
- Abstract:
- ... Hydrothermal liquefaction (HTL) of microalgae Nannochloropsis (NAS) over various transition metal M/TiO₂ (M = Fe, Co, Ni, Mo, and Mn) was investigated. Ni/TiO₂ was the most effective catalyst to improve the yield and quality of biocrude and the liquefaction conversion. Ni/TiO₂ was characterized by XRD, XRF, and XPS. The research of Effect of reaction temperature on HTL of NAS over Ni/TiO₂ suggeste ...
- DOI:
- 10.1016/j.biortech.2017.11.051
- PubMed:
- 29197769
- PubMed Central:
- PMC5858874
- https://doi.org/10.1016/j.biortech.2017.11.051
- Author:
- Wenlei Xie; Mingliang Fan
- Source:
- Bioresource technology 2013 v.139 pp. 388-392
- ISSN:
- 0960-8524
- Subject:
- X-ray diffraction; X-ray photoelectron spectroscopy; catalysts; catalytic activity; methanol; scanning electron microscopy; silica; soybean oil; transesterification; transmission electron microscopy
- Abstract:
- ... An active heterogeneous catalyst, namely 1,1,3,3-tetramethylguanidine (TMG) immobilized on mesoporous SBA-15 silica (SBA-15-pr-TMG), was prepared and the catalytic activity was investigated for transesterification of soybean oil with methanol. The heterogeneous catalysts were characterized using Hammett titration method, Fourier transform infrared spectra, X-ray diffraction, scanning electron micr ...
- DOI:
- 10.1016/j.biortech.2013.04.019
- PubMed:
- 23664065
- https://doi.org/10.1016/j.biortech.2013.04.019
- Author:
- Domenico Licursi; Claudia Antonetti; Sara Fulignati; Sandra Vitolo; Monica Puccini; Erika Ribechini; Luca Bernazzani; Anna Maria Raspolli Galletti
- Source:
- Bioresource technology 2017 v.244 pp. 880-888
- ISSN:
- 0960-8524
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; autoclaves; biorefining; energy recovery; energy-dispersive X-ray analysis; hazelnuts; hot water treatment; hydrochars; levulinic acid; microwave treatment; proximate composition; scanning electron microscopy; sorbents; sustainable development; wastes
- Abstract:
- ... For the first time, the exploitation of hazelnut shells for the combined production of levulinic acid (LA) and hydrochar was investigated. The optimization of the catalytic hydrothermal treatment was performed both in autoclave and microwave reactor, approaching a maximum LA yield of ∼9–12wt%. Hydrochars recovered with high yield (∼43–47wt%) were characterized by different techniques, including el ...
- DOI:
- 10.1016/j.biortech.2017.08.012
- https://doi.org/10.1016/j.biortech.2017.08.012
- Author:
- Xin Wen; Hansong Liu; Lu Zhang; Jing Zhang; Can Fu; Xiaoze Shi; Xuecheng Chen; Ewa Mijowska; Ming-Jun Chen; De-Yi Wang
- Source:
- Bioresource technology 2019 v.272 pp. 92-98
- ISSN:
- 0960-8524
- Subject:
- Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; adsorption; carbon; carbonization; catalysts; coffee beans; desorption; ferric chloride; magnetic materials; magnetism; methyl orange; methylene blue; nitrogen; rhodamines; scanning electron microscopes; scanning electron microscopy; temperature; transmission electron microscopes; transmission electron microscopy; wastes; water purification
- Abstract:
- ... Functional carbon materials have been fabricated through simple and effective catalytic carbonization with waste coffee grounds (CGs) as carbon precursor and FeCl₃ as catalyst. The effect of FeCl₃ loading and carbonization temperature on carbon yield was investigated. The morphology and structure of as-synthesized carbons was characterized by scanning electron microscope (SEM), transmission electr ...
- DOI:
- 10.1016/j.biortech.2018.10.011
- https://doi.org/10.1016/j.biortech.2018.10.011
- Author:
- Tzialla, Aikaterini A.; Pavlidis, Ioannis V.; Felicissimo, Marcella P.; Rudolf, Petra; Gournis, Dimitrios; Stamatis, Haralambos
- Source:
- Bioresource technology 2010 v.101 no.6 pp. 1587-1594
- ISSN:
- 0960-8524
- Subject:
- X-ray photoelectron spectroscopy; X-ray diffraction; thermal analysis; Pseudozyma antarctica; immobilized enzymes; hydrogen peroxide; clay; triacylglycerol lipase; smectite; nanoclays
- Abstract:
- ... The immobilization of lipase B from Candida antarctica on smectite group nanoclays (Laponite, SWy-2 and Kunipia), as well as on their organically modified derivatives, was investigated. A combination of techniques, namely X-ray diffraction, thermal analysis, X-ray photoelectron and FT-IR spectroscopy, was used for characterization of the novel immobilized biocatalyst. Structural and biochemical ch ...
- DOI:
- 10.1016/j.biortech.2009.10.023
- https://doi.org/10.1016/j.biortech.2009.10.023
- Author:
- Huishan Tan; Wei Feng; Peijun Ji
- Source:
- Bioresource technology 2012 v.115 no. pp. 172-176
- ISSN:
- 0960-8524
- Subject:
- X-ray diffraction; X-ray photoelectron spectroscopy; Yarrowia lipolytica; carbon nanotubes; catalytic activity; circular dichroism spectroscopy; enzyme activity; ethanol; heptane; iron oxides; nanoparticles; transmission electron microscopy; triacylglycerol lipase
- Abstract:
- ... Magnetic iron oxide nanoparticles were loaded onto the surfaces of multiwalled carbon nanotubes (MWNTs) by the impregnation method. The obtained magnetic nanotubes were characterized with high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD). Yarrowia lipolytica lipase was covalently immobilized on the magnetic MWNTs (M-MWNTs) ...
- DOI:
- 10.1016/j.biortech.2011.10.066
- PubMed:
- 22115533
- https://doi.org/10.1016/j.biortech.2011.10.066
28. Manganese oxide-modified biochars: Preparation, characterization, and sorption of arsenate and lead
- Author:
- Shengsen Wang; Bin Gao; Yuncong Li; Ahmed Mosa; Andrew R. Zimmerman; Lena Q. Ma; Willie G. Harris; Kati W. Migliaccio
- Source:
- Bioresource technology 2015 v.181 pp. 13-17
- ISSN:
- 0960-8524
- Subject:
- Pinus; X-radiation; X-ray diffraction; X-ray photoelectron spectroscopy; arsenic; biochar; birnessite; feedstocks; lead; lead arsenate; manganese; manganese chloride; manganese oxides; pyrolysis; scanning electron microscopy; sorption; thermogravimetry; wood
- Abstract:
- ... This work explored two modification methods to improve biochar’s ability to sorb arsenic (As) and lead (Pb). In one, pine wood feedstock was pyrolyzed in the presence of MnCl2·4H2O (MPB) and in the other it was impregnated with birnessite via precipitation following pyrolysis (BPB). The resulting biochars were characterized using thermogravimetry, X-ray diffraction, X-ray photoelectron spectroscop ...
- DOI:
- 10.1016/j.biortech.2015.01.044
- https://doi.org/10.1016/j.biortech.2015.01.044
- Author:
- Xue Jiang; Jian Gu; Xiuzhi Tian; Yali Li; Dan Huang
- Source:
- Bioresource technology 2012 v.104 no. pp. 473-479
- ISSN:
- 0960-8524
- Subject:
- X-ray diffraction; X-ray photoelectron spectroscopy; cellulose; chemical structure; chlorides; crystals; glucose; hydrolysis; nuclear magnetic resonance spectroscopy
- Abstract:
- ... The influence of introduction of cyanuric chloride on glucose’s yield (Y) in acid-catalyzed hydrolysis of microcrystalline cellulose (MCC) has been studied. The content of cyanuric chloride (C) in modified MCCs was determined by X-ray photoelectric spectroscopy. The chemical structures of modified MCCs were analyzed by Fourier transformation-infrared spectroscopy and cross polarization/magic angle ...
- DOI:
- 10.1016/j.biortech.2011.10.091
- PubMed:
- 22113070
- https://doi.org/10.1016/j.biortech.2011.10.091
- Author:
- Fan Yang; Shuaishuai Zhang; Dong-Wan Cho; Qing Du; Jingpeng Song; Daniel C.W. Tsang
- Source:
- Bioresource technology 2019 v.272 pp. 415-420
- ISSN:
- 0960-8524
- Subject:
- X-ray diffraction; X-ray photoelectron spectroscopy; adsorption; aqueous solutions; biochar; cation exchange; corn straw; iron; lead; manganese; physicochemical properties; transmission electron microscopy
- Abstract:
- ... Hierarchical porous biochar derived from corn straw containing ternary needle-like iron-manganese-sulphur composites (Fe-Mn-S@HCS) are fabricated, and their physicochemical characteristics and performance for Pb removal were examined in detail. Introduction of Mn (transition metal) into Fe-biochar composites can effectively alter the chemical state of Fe; simultaneous doping with S can enhance cat ...
- DOI:
- 10.1016/j.biortech.2018.10.068
- https://doi.org/10.1016/j.biortech.2018.10.068
- Author:
- Ming Zhang; Bin Gao; Sima Varnoosfaderani; Arthur Hebard; Ying Yao; Mandu Inyang
- Source:
- Bioresource technology 2013 v.130 pp. 457-462
- ISSN:
- 0960-8524
- Subject:
- X-ray diffraction; X-ray photoelectron spectroscopy; arsenic; biochar; energy-dispersive X-ray analysis; particle size; scanning electron microscopy; sorption; transmission electron microscopy
- Abstract:
- ... A magnetic biochar based adsorbent with colloidal or nanosized γ-Fe2O3 particles embedded in porous biochar matrix was fabricated via thermal pyrolysis of FeCl3 treated biomass. The synthesized samples were studied systematically by X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, selected-area electron diffraction pattern, scanning electron microscopy, energy ...
- DOI:
- 10.1016/j.biortech.2012.11.132
- PubMed:
- 23313693
- https://doi.org/10.1016/j.biortech.2012.11.132
- Author:
- Xiaojun Ma; Fan Zhang; Junyan Zhu; Lili Yu; Xinyan Liu
- Source:
- Bioresource technology 2014 v.164 pp. 1-6
- ISSN:
- 0960-8524
- Subject:
- X-ray diffraction; X-ray photoelectron spectroscopy; activated carbon; adsorption; carbon fibers; charcoal; methylene blue; porous media; surface area; temperature; wood
- Abstract:
- ... Activated carbon fiber (C-WACF) with super high surface area and well-developed small mesopores were prepared by liquefied wood and uses wood charcoal (WC) as additive. The characterization and properties of C-WACF were investigated by XRD, XPS and N2 adsorption. Results showed the pore development was significant at temperatures >750°C, and reached a maximum BET surface area (2604.7m2/g) and tota ...
- DOI:
- 10.1016/j.biortech.2014.04.050
- https://doi.org/10.1016/j.biortech.2014.04.050
- Author:
- Shengsen Wang; Bin Gao; Andrew R. Zimmerman; Yuncong Li; Lena Ma; Willie G. Harris; Kati W. Migliaccio
- Source:
- Bioresource technology 2015 v.175 pp. 391-395
- ISSN:
- 0960-8524
- Subject:
- X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; aqueous solutions; arsenic; biochar; biomass; carbon; electrostatic interactions; energy-dispersive X-ray analysis; hematite; magnetic materials; magnetic properties; scanning electron microscopy; sorption
- Abstract:
- ... There is a need for the development of low-cost adsorbents to removal arsenic (As) from aqueous solutions. In this work, a magnetic biochar was synthesized by pyrolyzing a mixture of naturally-occurring hematite mineral and pinewood biomass. The resulting biochar composite was characterized with X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and ...
- DOI:
- 10.1016/j.biortech.2014.10.104
- https://doi.org/10.1016/j.biortech.2014.10.104
- Author:
- Ruiyi Fan; Feng Xie; Xueliang Guan; Qinglin Zhang; Zhengrong Luo
- Source:
- Bioresource technology 2014 v.163 pp. 167-171
- ISSN:
- 0960-8524
- Subject:
- Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; adsorption; crosslinking; electronic wastes; formaldehyde; gold; hydrochloric acid; nitric acid; persimmons; polychlorinated biphenyls; recycling
- Abstract:
- ... A low cost bio-sorbent, named “PPF resin”, was prepared by crosslinking the persimmon residual with formaldehyde. The adsorption behavior of PPF resin towards Au(III) from varied HCl and HNO3 concentration solutions was studied. PPF resin could adsorb almost complete Au(III) from high acidic systems. The influence of dilution ratio, solid–liquid ratio and time towards Au(III) from aqua regia leach ...
- DOI:
- 10.1016/j.biortech.2014.03.164
- https://doi.org/10.1016/j.biortech.2014.03.164
- Author:
- Xueping Song; Yan Jiang; Xianjian Rong; Wei Wei; Shuangfei Wang; Shuangxi Nie
- Source:
- Bioresource technology 2016 v.216 pp. 1098-1101
- ISSN:
- 0960-8524
- Subject:
- X-ray diffraction; X-ray photoelectron spectroscopy; alkali treatment; bamboos; chemical analysis; crystal structure; enzymes; hydrogen peroxide; lignin; scanning electron microscopy; solvents; surface area
- Abstract:
- ... The surface characterization and chemical analysis of bamboo substrates by alkali hydrogen peroxide pretreatment (AHPP) were investigated in this study. The results tended to manifest that AHPP prior to enzymatic and chemical treatment was potential for improving accessibility and reactivity of bamboo substrates. The inorganic components, organic solvent extractives and acid-soluble lignin were ef ...
- DOI:
- 10.1016/j.biortech.2016.06.026
- https://doi.org/10.1016/j.biortech.2016.06.026
- Author:
- Chunshuang Liu; Wei Li; Haitong Yu; Lihong Liu; Dongfeng Zhao; Duu-Jong Lee
- Source:
- Bioresource technology 2022 v.343 pp. 125896
- ISSN:
- 0960-8524
- Subject:
- Rhodobacter; Thiobacillus; X-ray diffraction; X-ray photoelectron spectroscopy; bioremediation; genes; metabolites; oxidation; sulfates; sulfites; sulfur; technology; wastewater
- Abstract:
- ... This study for the first time bioreduced Te(IV) using elemental sulfur (S⁰) as electron donor, achieving 91.17%±0.8% conversion with reaction rate of 0.77 ± 0.01 mg/L/h in a 60-day cultivation. Characterization using X-ray photoelectron spectroscopy and X-ray power diffraction analyses confirmed that most removed Te(IV) was reduced to elemental Te(0) deposits, while ion chromatogram analysis showe ...
- DOI:
- 10.1016/j.biortech.2021.125896
- https://doi.org/10.1016/j.biortech.2021.125896
- Author:
- Dong-Wan Cho; Daniel C.W. Tsang; Sohyun Kim; Eilhann E. Kwon; Gihoon Kwon; Hocheol Song
- Source:
- Bioresource technology 2018 v.270 pp. 346-351
- ISSN:
- 0960-8524
- Subject:
- X-ray diffraction; X-ray photoelectron spectroscopy; carbon; carbon dioxide; carbon monoxide; case studies; catalysts; cobalt; hydrogen; p-nitrophenol; physicochemical properties; pyrolysis; reaction kinetics; scanning electron microscopy; synthesis gas; transmission electron microscopy
- Abstract:
- ... Thermochemical conversion of cobalt (Co)-loaded lignin-rich spent coffee grounds (COSCG) was carried out to find the appropriate pyrolytic conditions (atmospheric gas and pyrolytic time) for syngas production (H2 and CO) and fabricate Co-biochar catalyst (CBC) in one step. The use of CO2 as atmospheric gas and 110-min pyrolytic time was optimal for generation of H2 (∼1.6 mol% in non-isothermal pyr ...
- DOI:
- 10.1016/j.biortech.2018.09.046
- https://doi.org/10.1016/j.biortech.2018.09.046