scholarly journals Strong reinforcement effects in 2D cellulose nanofibril–graphene oxide (CNF–GO) nanocomposites due to GO-induced CNF ordering

2020 ◽  
Vol 8 (34) ◽  
pp. 17608-17620
Author(s):  
Hanieh Mianehrow ◽  
Giada Lo Re ◽  
Federico Carosio ◽  
Alberto Fina ◽  
Per Tomas Larsson ◽  
...  

Nanocomposites from native cellulose with low 2D nanoplatelet content are of interest as sustainable materials combining functional and structural performance.

Polymers ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 1
Author(s):  
Zhiqiang Zhu ◽  
Erbing Zhang ◽  
Qinzhi Zeng ◽  
Jiuping Rao ◽  
Nairong Chen

With rising interior air pollution, health, and food shortage concerns, wood adhesives derived from non-food sustainable materials have therefore attracted considerable attention. Here we developed an eco-friendly cottonseed-lignin adhesive consisting of non-food defatted cottonseed flour (DCF), alkali lignin (AL), and graphene oxide (GO). The cation-π interaction, and hydrogen and covalent bonds between AL@GO and DCF collectively enhanced the cross-linking structure of the cured cottonseed-lignin adhesive, based on the Fourier-transform infrared spectroscopy, thermogravimetric analyses, scanning electron microscopy, and sol-gel tests. The high performance of the developed cottonseed-lignin adhesive was evidenced by its increased wet/dry shear strength and decreased rheological properties before curing and improved thermal stability and decreased soluble substances after curing. Particularly, the highest wet shear strength of poplar plywood bonded with cottonseed-lignin adhesive was 1.08 MPa, which increased by 74.2 and 54.3% as compared to the control and requirement of the Chinese standard GB/T 9846-2015 for interior plywood (≥0.7 MPa), respectively. The technology and resultant adhesives showed great potential in the preparation of green woody composites for many applications.


2019 ◽  
Vol 3 (1) ◽  
pp. 1145-1151 ◽  
Author(s):  
Quanling Yang ◽  
Junwei Yang ◽  
Zhaodongfang Gao ◽  
Bei Li ◽  
Chuanxi Xiong

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Jin Wang ◽  
Qiufang Yao ◽  
Chengmin Sheng ◽  
Chunde Jin ◽  
Qingfeng Sun

Via a one-step ultrasonication method, cellulose nanofibril/graphene oxide hybrid (GO-CNF) aerogel was successfully prepared. The as-prepared GO-CNF possessed interconnected 3D network microstructure based on GO nanosheets grown along CNF through hydrogen bonds. The aerogel exhibited superior adsorption capacity toward four kinds of antibiotics. The removal percentages (R%) of these antibiotics were 81.5%, 79.5%, 79.1%, and 73.9% for Doxycycline (DXC), Chlortetracycline (CTC), Oxytetracycline (OTC), and tetracycline (TC), respectively. Simultaneously, the adsorption isotherms were well fitted to Langmuir model and kinetics study implied that the adsorption process was attributed to pseudo-second-order model. The maximum theoretical adsorption capacities of GO-CNF were 469.7, 396.5, 386.5, and 343.8 mg·g−1 for DXC, CTC, OTC, and TC, respectively, calculated by the Langmuir isotherm models. After five cycles, importantly, the regenerated aerogels still could be used with little degradation of adsorption property. Consequently, the as-synthesized GO-CNF was a successful application of effective removal of antibiotics.


2017 ◽  
Vol 5 (24) ◽  
pp. 12528-12541 ◽  
Author(s):  
Qifeng Zheng ◽  
Alexander Kvit ◽  
Zhiyong Cai ◽  
Zhenqiang Ma ◽  
Shaoqin Gong

Supercapacitors made with CNF/RGO/MoOxNyaerogel film electrodes exhibit outstanding specific capacitances and remarkable energy densities in different electrolytes.


RSC Advances ◽  
2016 ◽  
Vol 6 (24) ◽  
pp. 19819-19825 ◽  
Author(s):  
Mohd Shaiful Sajab ◽  
Chin Hua Chia ◽  
Chi Hoong Chan ◽  
Sarani Zakaria ◽  
Hatika Kaco ◽  
...  

A highly porous cellulose nanofibril aerogel loaded with graphene oxide–iron(iii) nanocomposites was produced and used for the treatment of methylene blue in aqueous solution.


BioResources ◽  
2015 ◽  
Vol 10 (2) ◽  
Author(s):  
Changyan Xu ◽  
Guangjing Wang ◽  
Cheng Xing ◽  
Laurent M. Matuana ◽  
Handong Zhou

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