Recoverable cellulose composite adsorbents for anionic/cationic dyes removal

被引：14
|
作者：
Xu, Airong [1 ]
Gong, Yiming [1 ]
Sun, Qingqing [1 ]
Li, Liuzemu [2 ]
Wang, Fen [1 ]
Xiao, Zhihong [2 ]
Liu, Rukuan [2 ]
机构：
[1] Henan Univ Sci & Technol, Sch Chem Engn & Pharmaceut, Luoyang 471003, Henan, Peoples R China
[2] Hunan Acad Forestry, State Key Lab Utilizat Woody Oil Resource, Changsha 410004, Hunan, Peoples R China
来源：
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2023年 / 238卷
基金：
中国国家自然科学基金;
关键词：
Cellulose; Graphene oxide; Magnetic composite; Dye removal; METHYLENE-BLUE ADSORPTION; GRAPHENE OXIDE; HYDROXYETHYL CELLULOSE; AQUEOUS-SOLUTIONS; WASTE-WATER; CONGO RED; HYDROGELS; KINETICS; NANOCOMPOSITE; ISOTHERMS;
D O I：
10.1016/j.ijbiomac.2023.124022
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
GO/HEC/PGDE/Fe3O4 materials were successfully fabricated using environmentally-friendly hydroxyethyl cel-lulose (HEC), poly(ethylene glycol) diglycidyl ether (PGDE), graphene oxide (GO) and magnetic Fe3O4. Sys-tematic investigations were completed to explore the influences of GO content in GO/HEC/PGDE/Fe3O4 and adsorption conditions on the adsorptions of cationic dyes (methylene blue (MB), crystal violet (CV)) and anionic dye acid blue 25 (AB-25). The increase of GO content can remarkably improve the adsorption capacity of GO/ HEC/PGDE/Fe3O4 for the dyes. The three kinetic, four isothermic and three thermodynamic models were investigated to reveal the adsorption behaviors of the dyes. The formation of HEC/PGDE/Fe3O4 and adsorption mechanisms of the dyes by GO/HEC/PGDE/Fe3O4 were suggested. The GO/HEC/PGDE/Fe3O4 endowed with easy-fabrication, eco-friendly feature, efficient adsorption capacity of anionic/cationic dyes, convenient sepa-ration and reusability has potential applications in wastewater purification industry.
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收藏
页数：14
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