多孔纤维素表面聚离子液体交联结构构建与吸附性能研究

宋文琦; 符泽鹏; 王紫; 任芷桦; 王思雨; 杨成林; 朱雪瑶; 彭亲; 杨苗秀

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Construction of Polymeric Ionic Liquid Crosslinked Structures on Porous Cellulose and Study on Adsorption Performance

Received:March 22, 2023 Revised:March 26, 2023

DOI：10.11981/j.issn.1000-6842.2024.03.01

Key Words:cellulose;polymeric ionic liquid;adsorption;congo red

Fund Project:国家自然科学基金项目（22308283）；陕西省科技厅项目（2022JQ-127）；西京学院“大学生创新创业训练计划”项目（X202312715091）；本研究获得了陕西青年创新团队的支持。

Author Name	Affiliation	Postcode
SONG Wenqi^*	Technological Institute of Materials & Energy Science （TIMES）， Xi’an Key Lab of Advanced Photo-Electronics Materials and Energy Conversion Device， Xijing University， Xi’an， Shaanxi Province， 710123 School of Electronic Information， Xijing University， Xi’an， Shaanxi Province， 710123	710123
FU Zepeng	School of Electronic Information， Xijing University， Xi’an， Shaanxi Province， 710123	710123
WANG Zi	School of Electronic Information， Xijing University， Xi’an， Shaanxi Province， 710123	710123
REN Zhihua	School of Electronic Information， Xijing University， Xi’an， Shaanxi Province， 710123	710123
WANG Siyu	School of Electronic Information， Xijing University， Xi’an， Shaanxi Province， 710123	710123
YANG Chenglin	School of Electronic Information， Xijing University， Xi’an， Shaanxi Province， 710123	710123
ZHU Xueyao	School of Electronic Information， Xijing University， Xi’an， Shaanxi Province， 710123	710123
PENG Qin	School of Electronic Information， Xijing University， Xi’an， Shaanxi Province， 710123	710123
YANG Miaoxiu	China National Pulp and Paper Research Institute Co.， Ltd.， Beijing， 100102	100102

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Abstract:

This study developed a novel polymeric imidazolium ionic liquid-modified porous cellulose （PC@PCIL） for the removal of azo dyes from water with high efficiency. Porous cellulose substrates （PC） were prepared from cotton pulp through an alkali/urea solvent system， following by the introduction of 3，3-（［1，1-biphenyl］-4，4-diylbis（methylene））bis（1-vinyl-1H-imidazol-3-ium） chloride and 3-butyl-1-vinyl-1H-imidazol-3-ium chloride as co-monomers. Controlled living polymerization technique was employed to construct polymeric ionic liquid interlinked structures on the surface of PC to prepare adsorbent PC@PCIL. This adsorbent exhibited an adsorption capacity of up to 544 mg/g for congo red in water， and the adsorption process was primarily governed by a synergistic chemical adsorption mechanism involving electrostatic interactions， π-π stacking， and hydrophobic effects， following the pseudo-second-order kinetic model and Freundlich isotherm model.

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