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You searched for: Author jianhua Remove constraint Author: jianhua Publication Year 2020 Remove constraint Publication Year: 2020 Subject X-ray diffraction Remove constraint Subject: X-ray diffraction
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1. Adsorption of Perfluorooctane sulfonate (PFOS) onto metal oxides modified biochar

Author:
Du, Jianhua,   et al.   ; Hassan, Masud; Liu, Yanju; Naidu, Ravi; Qi, Fangjie;     Show all 5 Authors
Source:
Environmental technology & innovation 2020 v.19 pp. 100816
ISSN:
2352-1864
Subject:
X-ray absorption spectroscopy; X-ray diffraction; active sites; adsorbents; adsorption; aqueous solutions; biochar; catalytic activity; cellulose; ecosystems; electrostatic interactions; environmental impact; graphene; hemicellulose; hydrophobic bonding; hydrophobicity; ion exchange; iron oxides; micelles; models; moieties; pH; particle size; perfluorooctane sulfonic acid; persistent organic pollutants; remediation; sawdust; soil; sorption isotherms; sulfonates; toxicity
Abstract:
... Perfluorooctane sulfonate (PFOS) is a persistent organic pollutant (POP), which poses potential toxicity to biotic and abiotic ecosystem. Adsorption of PFOS from soil and water has emerged as promising remediation practice due to low cost, high removal performance, low environmental impact, and recalcitrant to induce secondary contamination. In this study, red mud modified sawdust (RMSDN600) and u ...
DOI:
10.1016/j.eti.2020.100816

2. Effect of Mesona chinensis polysaccharide on the pasting, rheological, and structural properties of tapioca starch varying in gelatinization temperatures

Author:
Xie, Jianhua,   et al.   ; Xiao, Yuehuan; Shen, Mingyue; Luo, Yu; Ren, Yanming; Han, Xiuying;     Show all 6 Authors
Source:
International journal of biological macromolecules 2020 v.156 pp. 137-143
ISSN:
0141-8130
Subject:
Platostoma palustre; X-ray diffraction; gelatinization temperature; gels; microstructure; pasting properties; scanning electron microscopy; starch; tapioca; viscosity
Abstract:
... The effects of Mesona chinensis polysaccharide (MCP) on the pasting, rheological properties, granule size, and water mobility of tapioca starch (TS) were investigated at different gelatinization temperatures (75 °C and 95 °C). The structures of tapioca starch-Mesona chinensis polysaccharide (TM) gels formed at different gelatinization temperatures were investigated by X-ray diffraction (XRD) and s ...
DOI:
10.1016/j.ijbiomac.2020.04.041

3. Morelsins A–F, six sesquiterpenoids from the liquid culture of Morchella importuna

Author:
Ju, Jianhua,   et al.   ; Yang, Cailing; Meng, Qingfeng; Zhang, Yao; Hu, Yun; Xiao, Shiji; Zhang, Yuqian; Fu, Shaobin;     Show all 8 Authors
Source:
Tetrahedron 2020 v.76 no.31-32 pp. 131356
ISSN:
0040-4020
Subject:
Morchella; X-ray diffraction; chemical reactions; chemical structure; enzyme inhibition; ethyl acetate; liquids; mushrooms; sesquiterpenoids; spectral analysis; triacylglycerol lipase; China
Abstract:
... Morchella is a genus of edible mushrooms possessing high medicinal value. Morchella importuna is the major selected species for artificial cultivation in China. Six new sesquiterpenoids, morelsins A–F (1–6) and four known compounds (7−10) were isolated from ethyl acetate extract of liquid culture of M. importuna. The structures were solved by extensive spectroscopic data and X-ray crystallography ...
DOI:
10.1016/j.tet.2020.131356

4. Highly Hierarchical Fibrillar Biogenic Silica with Mesoporous Structure Derived from the Perennial Plant Equisetum Fluviatile

Author:
Wang, Jianhua,   et al.   ; Huang, Rui-an; Hu, Xinghui; Guo, Yuzhong; Yang, Bin;     Show all 5 Authors
Source:
ACS applied materials & interfaces 2020 v.12 no.31 pp. 35259-35265
ISSN:
1944-8252
Subject:
Equisetum fluviatile; X-ray diffraction; heat treatment; nanomaterials; nitrogen; organic compounds; perennials; porosity; porous media; potassium; scanning electron microscopy; silica; small-angle X-ray scattering; sorption; stems; temperature; transmission electron microscopy
Abstract:
... A new discovery of highly hierarchical fibrillar biogenic silica with mesoporous structure derived from the perennial plant Equisetum fluviatile was made. By removing the organic compounds through chemical and heat treatment, the biogenic silica skeleton can largely retained the original highly hierarchical structure of the plant stems. Infrared spectra, X-ray diffraction, and small-angle X-ray sc ...
DOI:
10.1021/acsami.0c10421

5. Development and physicochemical characterization of chitosan hydrochloride/sulfobutyl ether‐β‐cyclodextrin nanoparticles for cinnamaldehyde entrapment

Author:
Wang, Jianhua,   et al.   ; Zhu, Wenjin; Wu, Jiulin; Guo, Xiaoban; Sun, Xinyu; Li, Qingxiang; Chen, Li;     Show all 7 Authors
Source:
Journal of food biochemistry 2020 v.44 no.6 pp. e13197
ISSN:
0145-8884
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; antibacterial properties; atomic force microscopy; bioactive compounds; chitosan; crosslinking; differential scanning calorimetry; encapsulation; food preservation; immune system; nanocapsules; nanoparticles; oxidation; scanning electron microscopes; texture; thermal stability; volatilization; water solubility
Abstract:
... In this work, the cinnamaldehyde (CA) loaded nanoparticles were synthesized by directly cross‐linking chitosan hydrochloride (CSH) and sulfobutyl ether‐β‐cyclodextrin (SBE‐β‐CD). The CA/SBE‐β‐CD inclusion complex was firstly prepared, and its highest encapsulation efficiency (EE) was 86.34%. Field Emission Scanning Electron Microscope results indicated that the inclusion complex showed massive agg ...
DOI:
10.1111/jfbc.13197

6. Synthesis, structure, fluorescence, and electrochemical properties of a binuclear Ag(I) complex with 1,4-bis(benzo[d]oxazol-2-yl)butane as a ligand

Author:
Xu, Jianhua,   et al.   ; Xia, Lixian; Zhang, Geng; Xia, Xinzhao; Li, Yagang; Wang, Jiao; Wu, Huilu;     Show all 7 Authors
Source:
Zeitschrift für Naturforschung 2020 v.75 no.4 pp. 353-357
ISSN:
1865-7117
Subject:
X-ray diffraction; acetonitrile; butanes; electrochemistry; fluorescence; infrared spectroscopy; ligands; nitrogen; oxygen; perchlorates; silver; ultraviolet-visible spectroscopy
Abstract:
... Reaction of 1,4-bis(benzo[d]oxazol-2-yl)butane (BBO) with [Ag(CH₃CN)₄(ClO₄)] afforded a new binuclear silver(I) complex, with composition [Ag₂(BBO)₂(ClO₄)₂], characterized by elemental analysis, UV/Vis and IR spectroscopy, and single-crystal X-ray diffraction. The results show that the Ag(I) complex consists of a centrosymmetric dimetallacyclic structure assembled from two Ag(I) atoms and two brid ...
DOI:
10.1515/znb-2019-0198

7. Production of Antitubercular Depsipeptides via Biosynthetic Engineering of Cinnamoyl Units

Author:
Ju, Jianhua,   et al.   ; Yang, Zhijie; Sun, Changli; Liu, Zhiyong; Liu, Qing; Zhang, Tianyu; Ma, Junying;     Show all 7 Authors
Source:
Journal of natural products 2020 v.83 no.5 pp. 1666-1673
ISSN:
1520-6025
Subject:
Mycobacterium tuberculosis; X-ray diffraction; biochemical pathways; bioprocess engineering; depsipeptides; minimum inhibitory concentration; nuclear magnetic resonance spectroscopy
Abstract:
... Two new cyclodecapeptides, atratumycins B (1) and C (2), containing substituted cinnamoyl side chains were generated by converging elements of the atratumycin (3) and atrovimycin (4) biosynthetic pathways. The structures of 1 and 2 were determined on the basis of HRESIMS, 1D and 2D NMR data, and X-ray single-crystal diffraction studies. Atratumycin B (1) is active against autoluminescent Mycobacte ...
DOI:
10.1021/acs.jnatprod.0c00194

8. Effect of Mesona chinensis polysaccharide on the retrogradation properties of maize and waxy maize starches during storage

Author:
Xie, Jianhua,   et al.   ; Luo, Yu; Xiao, Yuehuan; Shen, Mingyue; Wen, Huiliang; Ren, Yanming; Yang, Jun; Han, Xiuying;     Show all 8 Authors
Source:
Food hydrocolloids 2020 v.101 pp. 105538
ISSN:
0268-005X
Subject:
Fourier transform infrared spectroscopy; Platostoma palustre; X-ray diffraction; corn starch; gels; hydrocolloids; magnetism; microstructure; polysaccharides; retrogradation; rheological properties; scanning electron microscopy; waxy corn
Abstract:
... Waxy maize starch (WS) and normal maize starch (NS) were used to investigate the effect of Mesona chinensis polysaccharide (MCP) on the retrogradation properties of maize starch during storage. The rheological properties, water mobility, structural properties and microstructure of samples were investigated. MCP can significantly accelerate the retrogradation of WS and NS, and MCP restricted the wa ...
DOI:
10.1016/j.foodhyd.2019.105538

9. Microwave assisted extraction with three modifications on structural and functional properties of soluble dietary fibers from grapefruit peel

Author:
Xie, Jianhua,   et al.   ; Gan, Jiapan; Huang, Ziyan; Yu, Qiang; Peng, Guanyi; Chen, Yi; Nie, Shaoping; Xie, Mingyong;     Show all 8 Authors
Source:
Food hydrocolloids 2020 v.101 pp. 105549
ISSN:
0268-005X
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; adsorption; cholesterol; crystal structure; dietary fiber; food industry; functional foods; glucose; grapefruits; hydrocolloids; microwave treatment; molecular weight; nitrites; oils; scanning electron microscopy; thermal stability; water holding capacity
Abstract:
... Microwave-sodium hydroxide treatment (MST), microwave-enzymatic treatment (MET) and microwave-ultrasonic treatment (MUT) were used to treat grapefruit peel, then the structural and functional properties of extracted soluble dietary fibers (SDF), named as MST-SDF, MET-SDF and MUT-SDF, were investigated. The scanning electron microscopy, molecular weight, X-ray diffraction, FT-IR, thermal properties ...
DOI:
10.1016/j.foodhyd.2019.105549

10. Synthesis of ethanol perm-selective MFI zeolite membranes by binary structure directing agents

Author:
Yang, Jianhua,   et al.   ; Lan, Jiancheng; Wu, Haowen; Saulat, Hammad; Li, Liangqing; Lu, Jinming; Zhang, Yan;     Show all 7 Authors
Source:
Journal of membrane science 2020 v.598 pp. 117647
ISSN:
0376-7388
Subject:
X-ray diffraction; artificial membranes; contact angle; crystallization; ethanol; hydrophobicity; permeability; pervaporation; scanning electron microscopy; silicon; sulfur hexafluoride; tetrabutylammonium compounds; zeolites
Abstract:
... Good quality MFI zeolite membranes were prepared by altering a small amount of tetrapropylammonium (TPA⁺) with tetrabutylammonium (TBA⁺) in the synthesis solution. The effects of TBA⁺/Si ((TBA⁺+TPA⁺)/Si ratio invariant) on the separation performance, hydrophobicity and compactness of MFI zeolite membranes were explored by pervaporation, water contact angle, scanning electron microscopy (SEM), X-ra ...
DOI:
10.1016/j.memsci.2019.117647

11. Fabrication of core–shell structured TiO2@Sb–SnO2 with improved electroconductivity

Author:
Qian, Jianhua,   et al.   ; Wang, Yanan; Xing, Jinjuan; Xu, Jiasheng; Liu, Lin; Ma, Kunyi;     Show all 6 Authors
Source:
Journal of materials science 2020 v.55 no.9 pp. 3871-3883
ISSN:
0022-2461
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; antimony; composite materials; electrical conductivity; electron paramagnetic resonance spectroscopy; energy-dispersive X-ray analysis; pH; particle size; scanning electron microscopes; spectrometers; sulfates; surface area; temperature; thermogravimetry; tin dioxide; titanium dioxide; transmission electron microscopes; zeta potential
Abstract:
... TiO₂ can be integrated with antimony-doped tin oxide to obtain composite materials with high electroconductivity. Based on this, spherical TiO₂@Sb–SnO₂ (TSS) has been prepared by homogeneous precipitation combined with a high-temperature calcination process. The morphology, structure and composition of TSS were characterized by scanning electron microscope, Brunauer–Emmet–Teller surface area analy ...
DOI:
10.1007/s10853-019-04229-6

12. Mg–Al Mixed Oxide Derived from Hydrotalcites Prepared Using the Solvent-Free Method: A Stable Acid–Base Bifunctional Catalyst for Continuous-Flow Transesterification of Dimethyl Carbonate and Ethanol

Author:
Lv, Jianhua,   et al.   ; Wang, Hefang; Liu, Wenrui; Wang, Yiyan; Tao, Ning; Cai, Huanhuan; Liu, Jidong;     Show all 7 Authors
Source:
Industrial & engineering chemistry process design and development 2020 v.59 no.13 pp. 5591-5600
ISSN:
1520-5045
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; acidity; aluminum; aluminum oxide; carbonates; catalysts; catalytic activity; ethanol; grinding; magnesium; nitrogen; process design; scanning electron microscopy; streams; transesterification
Abstract:
... Mg–Al oxides were prepared by facile solvent-free grinding of Mg–Al layered double hydroxide and were used as catalysts for continuous-flow transesterification of dimethyl carbonate and ethanol. The surface and structure properties of the prepared Mg–Al oxides were characterized by X-ray powder diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, Fourier transform infrared ...
DOI:
10.1021/acs.iecr.9b06303

13. Antitubercular Ilamycins from Marine-Derived Streptomyces atratus SCSIO ZH16 ΔilaR

Author:
Ju, Jianhua,   et al.   ; Sun, Changli; Liu, Zhiyong; Zhu, Xiangcheng; Fan, Zhiying; Huang, Xuanmei; Wu, Qiaoling; Zheng, Xiaohong; Qin, Xiangjing; Zhang, Tianyu; Zhang, Hua; Ma, Junying;     Show all 12 Authors
Source:
Journal of natural products 2020 v.83 no.5 pp. 1646-1657
ISSN:
1520-6025
Subject:
Human immunodeficiency virus; Mycobacterium tuberculosis; Streptomyces atratus; X-ray diffraction; amino acids; antineoplastic activity; bioassays; cytotoxicity; death; drugs; human cell lines; minimum inhibitory concentration; multiple drug resistance; mutants; neoplasm cells; neoplasms; nuclear magnetic resonance spectroscopy; pathogens; structure-activity relationships; tuberculosis
Abstract:
... Tuberculosis (TB) ranks as the leading cause of death from a single infectious agent (ranking more lethal than HIV/AIDS) over the course of the past decade. More concerning is that reports of multi-drug-resistant (MDR) and extensively drug-resistant (XDR) strains of TB have been dramatically increasing. It continues to become ever more clear that novel anti-TB drugs with improved efficacies and re ...
DOI:
10.1021/acs.jnatprod.0c00151

14. Degradation of methylene blue by intimate coupling photocatalysis and biodegradation with bagasse cellulose composite carrier

Author:
Xiong, Jianhua,   et al.   ; Guo, Shuocheng; Zhao, Tianyu; Liang, Yinna; Liang, Jiaxiang; Wang, Shuangfei; Zhu, Hongxiang; Zhang, Liming; Zhao, Joe R.; Chen, Guoning;     Show all 10 Authors
Source:
Cellulose 2020 v.27 no.6 pp. 3391-3404
ISSN:
0969-0239
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; biodegradation; cellulose; crystal structure; energy-dispersive X-ray analysis; methylene blue; organic matter; photocatalysis; pollutants; scanning electron microscopy; sugarcane bagasse; titanium dioxide
Abstract:
... A novel highly efficient technology, intimate coupling photocatalysis and biodegradation (ICPB) for the treatment of refractory organic pollutants was introduced, and the carrier in ICPB based on sugarcane bagasse cellulose (SBC) was prepared. The SBC–TiO₂ carrier produced was characterized using spectroscopy, microscopy, and diffraction techniques. The SEM image showed a rough and porous structur ...
DOI:
10.1007/s10570-020-02995-0