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You searched for: Journal Cellulose Remove constraint Journal: Cellulose Publication Year 2019 Remove constraint Publication Year: 2019 Source 2019 v.26 no.11 Remove constraint Source: 2019 v.26 no.11
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1. A hierarchical Ag2O-nanoparticle/TiO2-nanotube composite derived from natural cellulose substance with enhanced photocatalytic performance

Author:
Lin, Zehao; Lu, Yongxin; Huang, Jianguo
Source:
Cellulose 2019 v.26 no.11 pp. 6683-6700
ISSN:
0969-0239
Subject:
cellulose; irradiation; methylene blue; nanocomposites; nanoparticles; nanosilver; nanotubes; norfloxacin; photocatalysis; pollutants; rhodamines; silver oxide; superoxide anion; titanium dioxide; ultraviolet radiation
Abstract:
... A series of hierarchical Ag₂O-nanoparticle/TiO₂-nanotube heterostructured nanocomposites with varied Ag₂O contents were fabricated by employing natural cellulose substance as the template. The nanocomposites possessed fine three-dimensional porous network structures, which were composed of TiO₂ nanotubes and fine Ag₂O nanoparticles that anchored on the surfaces. The composites exhibited enhanced p ...
DOI:
10.1007/s10570-019-02573-z

2. Anisotropic nanocellulose aerogels with ordered structures fabricated by directional freeze-drying for fast liquid transport

Author:
Chen, Yiming; Zhou, Lijie; Chen, Lian; Duan, Gaigai; Mei, Changtong; Huang, Chaobo; Han, Jingquan; Jiang, Shaohua
Source:
Cellulose 2019 v.26 no.11 pp. 6653-6667
ISSN:
0969-0239
Subject:
adsorption; aerogels; anisotropy; cellulose; ethanol; freeze drying; freezers; freezing; liquids; nanofibers; porosity; temperature
Abstract:
... Directional freeze-drying is considered to regulate the structure of nanocellulose aerogels with special performances. In this work, TEMPO-oxidized cellulose nanofiber aerogels with high porosity (> 99.5%) and low density (~ 7 mg/cm³) were produced by different freeze-drying methods. The effects of temperature, freezing reagents and freezing methods on the structure and properties of aerogels were ...
DOI:
10.1007/s10570-019-02557-z

3. A polydopamine-bridged hierarchical design for fabricating flame-retarded, superhydrophobic, and durable cotton fabric

Author:
Wang, Shuang; Du, Xiaosheng; Deng, Sha; Fu, Xihan; Du, Zongliang; Cheng, Xu; Wang, Haibo
Source:
Cellulose 2019 v.26 no.11 pp. 7009-7023
ISSN:
0969-0239
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; burning; cellulose; coatings; cotton; cotton fabric; fire resistance; flame retardants; flammability; heat; hydrophobicity
Abstract:
... Superhydrophobic fireproof coatings have attracted considerable attention owing to their multifunctional applications in academic and industrial areas. In this work, a sustainable, superhydrophobic, and fire-resistant nanocoating based on polydopamine (PDA) was successfully fabricated, and its application to cotton was explored. The Fourier transform infrared and X-ray photoelectron spectra confir ...
DOI:
10.1007/s10570-019-02586-8

4. A review of cellulose-based substrates for SERS: fundamentals, design principles, applications

Author:
Ogundare, Segun A.; van Zyl, Werner E.
Source:
Cellulose 2019 v.26 no.11 pp. 6489-6528
ISSN:
0969-0239
Subject:
Raman spectroscopy; adulterated products; cellulose; dyes; food safety; illicit drugs; nanoparticles; surface plasmon resonance; water quality
Abstract:
... Surface enhanced Raman spectroscopy (SERS) provides a useful sensory platform whereby target molecules at low concentration are identified, potentially detecting a single molecule. As a result, SERS has been widely applied in a variety of research endeavors using different substrates, one of which is a cellulose-based substrate. The unique properties of cellulose in its various forms make it an im ...
DOI:
10.1007/s10570-019-02580-0

5. Bacterial nanocellulose in papermaking

Author:
Skočaj, Matej
Source:
Cellulose 2019 v.26 no.11 pp. 6477-6488
ISSN:
0969-0239
Subject:
bacteria; biofilm; cellulose; cellulosic fibers; durability; economic feasibility; fermentation; fire resistance; hydrogen bonding; medicine; moieties; nanofibers; niches; paper; papermaking; pulp and paper industry; recycled paper; vinegars
Abstract:
... Bacterial nanocellulose (BNC) is a unique natural nanomaterial that shares very few similarities with other natural or industrially produced nanomaterials. BNC can be produced by a variety of bacteria, as a survival aid in different ecological niches. BNC is traditionally produced by static or shaking culture methods, and the ‘mother vinegar’, or biofilm, is a typical example of this product after ...
DOI:
10.1007/s10570-019-02566-y

6. Characterization of cellulose microfibrils, cellulose molecules, and hemicelluloses in buckwheat and rice husks

Author:
Nakamura, Yasutaka; Ono, Yuko; Saito, Tsuguyuki; Isogai, Akira
Source:
Cellulose 2019 v.26 no.11 pp. 6529-6541
ISSN:
0969-0239
Subject:
acid hydrolysis; ash content; atomic force microscopy; buckwheat; cellulose; cellulose microfibrils; cellulose nanofibers; crystal structure; molecular weight; polymerization; rice hulls; xylan
Abstract:
... Holocelluloses, TEMPO-oxidized holocelluloses, and TEMPO-oxidized cellulose nanofibrils were prepared from buckwheat and rice husks to characterize the cellulose microfibril morphologies and holocellulose molar masses. The buckwheat and rice husks had ash contents of 0.8% and 23%, respectively. All TEMPO-oxidized holocelluloses had cellulose I crystal structures. TEMPO-oxidized cellulose nanofibri ...
DOI:
10.1007/s10570-019-02560-4

7. Cobalt, copper and nickel-embedded chitosan/PAAS composite nanofiber mats as efficient heterogeneous catalysts for air oxidation of benzoin to benzil

Author:
Shao, Linjun; Xing, Guiying; Qi, Chenze
Source:
Cellulose 2019 v.26 no.11 pp. 6769-6783
ISSN:
0969-0239
Subject:
active sites; air; catalysts; catalytic activity; cellulose; chelation; chitosan; cobalt; copper; ligands; nanofibers; nickel; oxidation; polyacrylic acid; scanning electron microscopy; schiff bases; sodium
Abstract:
... We have applied electrospinning technique to embed cobalt, copper and nickel catalysts inside chitosan (CS) and polyacrylic acid sodium salt (PAAS) composite nanofiber mats (M@CS/PAAS) (M = Co²⁺, Cu²⁺ and Ni²⁺) as stable heterogeneous catalysts. Scanning electron microscopic analysis shows that the resultant M@CS/PAAS composite mats are bead-free and cylindrical nanofibers with mean diameter rangi ...
DOI:
10.1007/s10570-019-02548-0

8. Composite nanofiber membranes of bacterial cellulose/halloysite nanotubes as lithium ion battery separators

Author:
Huang, Chenghao; Ji, Hui; Guo, Bin; Luo, Lei; Xu, Weilin; Li, Jinping; Xu, Jie
Source:
Cellulose 2019 v.26 no.11 pp. 6669-6681
ISSN:
0969-0239
Subject:
asymmetric membranes; cellulose; electrolytes; filtration; halloysite; lithium batteries; mixing; nanofibers; nanotubes; porosity; separators; tensile strength; thermal stability
Abstract:
... Composite nanofiber membranes comprising bacterial cellulose (BC) and halloysite nanotubes (HNTs) were prepared by vacuum filtration. The tensile strength and ionic conductivity of the nanofiber membranes were improved by the blending of HNTs. The BC/HNTs nanofiber membrane with m(BC): m(HNTs) = 150: 1 (denoted as BC/HNTs-150) exhibited superior tensile strength (84.4 MPa), high porosity (83.0%), ...
DOI:
10.1007/s10570-019-02558-y

9. Correction to: Towards lignin-protein crosslinking: amino acid adducts of a lignin model quinone methide

Author:
Diehl, Brett G.; Watts, Heath D.; Kubicki, James D.; Regner, Matthew R.; Ralph, John; Brown, Nicole R.
Source:
Cellulose 2019 v.26 no.11 pp. 7025
ISSN:
0969-0239
Subject:
amino acids; cellulose; crosslinking; lignin; models; quinones
Abstract:
... The manuscript initially failed to cite the work of Dr. Cong et al., which was the basis for this effort. We apologize for this error. ...
DOI:
10.1007/s10570-019-02493-y

10. Easy preparation of superoleophobic membranes based on cellulose filter paper and their use for water–oil separation

Author:
Li, Shusheng; Yang, Shanshan; Zhu, Xiaoli; Jiang, Xubao; Kong, Xiang Zheng
Source:
Cellulose 2019 v.26 no.11 pp. 6813-6823
ISSN:
0969-0239
Subject:
Fourier transform infrared spectroscopy; X-ray photoelectron spectroscopy; acetonitrile; cellulose; coatings; emulsions; industrial wastewater; industry; nuclear magnetic resonance spectroscopy; oils; paper; pollution; synthetic products; toluene; water treatment
Abstract:
... Owing to the increasing amount of industrial wastewater and ocean pollution, separation of water and oil from their mixtures and emulsions has been an active area in water treatment industry and in academic research. Using cellulose filter paper as the substrate, a porous superoleophobic membrane (OP) was easily prepared by immersing the paper in an acetonitrile solution of toluene diisocyanate an ...
DOI:
10.1007/s10570-019-02552-4

11. Effect of the particle size of magnesium hydroxide on the cellulose polymerization during the oxygen delignification of radiata pine kraft pulp

Author:
Ning, Dengwen; Hu, Yuantao; Fu, Changming; Chen, Liu; Huang, Hai; Cao, Shilin; Ni, Yonghao; Huang, Fang
Source:
Cellulose 2019 v.26 no.11 pp. 6571-6581
ISSN:
0969-0239
Subject:
Pinus radiata; additives; cellulose; copper; feedstocks; iron; kraft pulp; magnesium; magnesium hydroxide; manganese; metal ions; oxygen pulping; particle size; polymerization; surface area; viscosity
Abstract:
... Magnesium salt is a known cellulose protector during the oxygen delignification process and it has been widely used in commercial practice, in particular, for feedstocks with a low magnesium presence. Minimizing the negative impact of transition metals by magnesium is one of the main mechanisms. A key parameter affecting the magnesium salt performance for this purpose is its particle size. In this ...
DOI:
10.1007/s10570-019-02569-9

12. Electrospinning of photo-responsive Azo-Cellulose: towards smart fibrous materials

Author:
Otsuka, Issei; Barrett, Christopher J.
Source:
Cellulose 2019 v.26 no.11 pp. 6903-6915
ISSN:
0969-0239
Subject:
cellulose; chlorides; esterification; isomerization; methylene chloride; moieties; photoirradiation; pyridines; scanning electron microscopy; solvents; spectral analysis; tetrahydrofuran; ultraviolet-visible spectroscopy
Abstract:
... Fabrication of nano/micro fibers of a photo-responsive cellulose derivative via electrospinning is demonstrated for the first time. Commercially available microcrystalline cellulose (Avicel®) is functionalized with a reversible molecular photo-switch, azobenzene, via esterification between the hydroxyl groups of cellulose and 4-(phenylazo)benzoyl chloride in anhydrous pyridine. The obtained azoben ...
DOI:
10.1007/s10570-019-02585-9

13. Environmentally friendly textile production: continuous pretreatment of knitted cotton fabric with normal temperature plasma and padding

Author:
Zhou, Lu; Bai, Yu; Zhou, Hongjie; Guo, Shiliang
Source:
Cellulose 2019 v.26 no.11 pp. 6943-6958
ISSN:
0969-0239
Subject:
ammonium nitrogen; cellulose; chemical oxygen demand; cotton; cotton fabric; knitted fabrics; microstructure; oils; pollutants; pollution control; temperature; total nitrogen; total phosphorus; washing; waxes
Abstract:
... To reduce pollution in cotton knitted fabric production, this study aimed at developing a novel open width and continuous pretreatment process combining plasma, padding, and enzyme washing etc. In this process, plasma destroyed oily and waxy structures, padding provided the same functions of scouring and polishing, and enzyme washing gave deoxidization. Compared with conventional one bath alkali p ...
DOI:
10.1007/s10570-019-02508-8

14. Evaluation of properties and specific energy consumption of spinifex-derived lignocellulose fibers produced using different mechanical processes

Author:
Kępa, Katarzyna; Chaléat, Céline M.; Amiralian, Nasim; Batchelor, Warren; Grøndahl, Lisbeth; Martin, Darren J.
Source:
Cellulose 2019 v.26 no.11 pp. 6555-6569
ISSN:
0969-0239
Subject:
cellulose; confocal laser scanning microscopy; drought tolerance; extrusion; grasses; homogenization; lignocellulose; mechanical properties; milling; nanofibers; opacity; pulp; specific energy; transmission electron microscopy; transmittance
Abstract:
... The increasing global demand for sustainable materials has drawn academic and industrial attention towards lignocellulosic resources. One emerging non-wood source is Australian spinifex arid grass. Exploration of this unique resource is particularly important due to its abundance, extreme drought-tolerance, renewability, and low cost. In this study, mild-alkali treated spinifex grass was subjected ...
DOI:
10.1007/s10570-019-02567-x

15. Freeze-drying prepared ready-to-use gelatin @polypropylene nonwoven hybrid sheet for stacking 3D cell culture

Author:
Zhou, Ying; Fu, Jing-Jing; Wang, Lin-Xiang; Lu, Zhisong; Wang, Feng; Xia, Qingyou; Kang, Yuejun; Li, Chang Ming; Yu, Ling
Source:
Cellulose 2019 v.26 no.11 pp. 6755-6768
ISSN:
0969-0239
Subject:
absorption; cell adhesion; cell culture; cell proliferation; cellulose; freeze drying; gelatin; hydrogels; immunoassays; liquids; nonwoven fabrics; physicochemical properties; polypropylenes; protein synthesis; storage time
Abstract:
... A novel free-standing gelatin-impregnated polypropylene nonwoven (gelatin @PP nonwoven hybrid sheet) was prepared by loading gelatin hydrogel on nonwoven fabric, followed by a freeze-drying procedure. Formation of gelatin in the gaps between the PP fibers significantly increased the pore ratio of the scaffolds. In addition, the freeze-drying prepared gelatin enabled fast liquid absorption and rapi ...
DOI:
10.1007/s10570-019-02545-3

16. Green synthesis of Ag2S nanoparticles on cellulose/Fe3O4 nanocomposite template for catalytic degradation of organic dyes

Author:
Zahedifar, Mahboobeh; Shirani, Mahboube; Akbari, Ali; Seyedi, Neda
Source:
Cellulose 2019 v.26 no.11 pp. 6797-6812
ISSN:
0969-0239
Subject:
Fourier transform infrared spectroscopy; Pistacia atlantica; X-ray diffraction; catalysts; catalytic activity; cellulose; dyes; energy-dispersive X-ray analysis; iron oxides; leaf extracts; leaves; magnetic materials; magnetism; methyl orange; nanocomposites; nanoparticles; scanning electron microscopy; seed extracts; silver sulfide; stabilizers; sulfides; transmission electron microscopy; wastewater
Abstract:
... In this study, a novel synthesis of Ag₂S nanoparticles on the cellulose/Fe₃O₄ nanocomposite template through a green and economical method was proposed. The Ag₂S nanoparticles grew on the environmentally benign cellulose/Fe₃O₄ nanocomposite via green pathway using the leaf and seed extract of Pistacia atlantica plants as reducing and stabilizing agent. The leaf extract showed the best results for ...
DOI:
10.1007/s10570-019-02550-6

17. Hierarchical polydopamine coated cellulose nanocrystal microstructures as efficient nanoadsorbents for removal of Cr(VI) ions

Author:
Dong, Liqin; Deng, Ruijie; Xiao, Hongyan; Chen, Fang; Zhou, Yifan; Li, Jikang; Chen, Sheng; Yan, Bin
Source:
Cellulose 2019 v.26 no.11 pp. 6401-6414
ISSN:
0969-0239
Subject:
adsorbents; adsorption; byproducts; cellulose; chromium; dopamine; dyes; heavy metals; ions; microstructure; nanocrystals; nanoparticles; pollutants; polymerization; sewage treatment; surface area
Abstract:
... Cellulose nanocrystals (CNCs) have been extensively explored as adsorbents for removal of heavy metals, dyes and other pollutants, but the pristine CNCs only show very limited adsorption capacity for Cr(VI) and usually demand complicated surface modification strategies to achieve acceptable Cr(VI) adsorption performance. In this work, we report a facile and efficient strategy to develop CNC-based ...
DOI:
10.1007/s10570-019-02529-3

18. Impact of plasma treatment on acoustic properties of natural cellulose materials

Author:
Pavlović, Sanja S.; Stanković, Snežana B.; Žekić, Andrijana; Nenadović, Miloš; Popović, Dušan M.; Milosavljević, Vladimir; Poparić, Goran B.
Source:
Cellulose 2019 v.26 no.11 pp. 6543-6554
ISSN:
0969-0239
Subject:
absorbance; acoustic properties; argon (noble gases); cellulose; cotton; hemp; physical properties; polymers; radio waves
Abstract:
... Low-temperature plasma is widely used in many surface treatment technologies for modifications of the physical properties of different polymeric materials. In the present work, we have examined the modification of acoustical properties of natural cellulose materials (cotton, hemp) by the radio-frequency argon plasma. We have observed an increase of the sound absorption coefficient due to the plasm ...
DOI:
10.1007/s10570-019-02547-1

19. Improved thermostability and cytocompatibility of bacterial cellulose/collagen composite by collagen fibrillogenesis

Author:
Dai, Lei; Nan, Jie; Tu, Xiao; He, Lang; Wei, Benmei; Xu, Chengzhi; Xu, Yuling; Li, Sheng; Wang, Haibo; Zhang, Juntao
Source:
Cellulose 2019 v.26 no.11 pp. 6713-6724
ISSN:
0969-0239
Subject:
X-ray diffraction; asymmetric membranes; cell adhesion; cellulose; collagen; crystal structure; fibroblasts; freeze drying; nanofibers; nitrogen; porous media; scanning electron microscopes; thermal stability; thermogravimetry
Abstract:
... Composite bacterial cellulose (BC) membranes containing collagen fibrils or collagen monomers (named BC/Col-fibre or BC/Col, respectively) were fabricated by immersing macroporous BC in a 3.0 mg/mL collagen solution for 50 h at 4 °C with or without collagen fibrillogenesis before lyophilization. The structure of the membranes was characterized by scanning electron microscope, nitrogen adsorption–d ...
DOI:
10.1007/s10570-019-02530-w

20. Injectable all-polysaccharide self-assembling hydrogel: a promising scaffold for localized therapeutic proteins

Author:
Dai, Lei; Cheng, Ting; Wang, Yan; Lu, Hailong; Nie, Shuangxi; He, Hong; Duan, Chao; Ni, Yonghao
Source:
Cellulose 2019 v.26 no.11 pp. 6891-6901
ISSN:
0969-0239
Subject:
Fourier transform infrared spectroscopy; biobased products; biopharmaceuticals; bovine serum albumin; buffers; cellulose; cellulose nanofibers; cross-linking reagents; electrostatic interactions; gastrointestinal system; guar gum; hydrogels; hydrogen bonding; mechanical properties; models; pH; scanning electron microscopes; scanning electron microscopy; toxicity
Abstract:
... Biomedical/pharmaceutical applications demand hydrogels made from biobased materials without the use of potentially toxic or denaturizing crosslinking agents. In this work, a new all-polysaccharide self-assembling hydrogel system consisting of anionic TEMPO-oxidized cellulose nanofibers (TOCNs) and cationic guar gum (CGG) is proposed. The TOCNs/CGG hydrogel are formed in situ when TOCNs and CGG ar ...
DOI:
10.1007/s10570-019-02579-7