Biomimetic Modification of Super-wetting Electrospun Poly(vinylidene fluoride)Porous Fibers with Organic Dyes and Heavy Metal Ions Adsorption,Oil/Water Separation,and Sterilization Performances Toward Wastewater Treatment

作     者：De-Xiang Sun Xiao-Lei Liao Nan Zhang Ting Huang Yan-Zhou Lei Xiao-Ling Xu Yong Wang De-Xiang Sun;Xiao-Lei Liao;Nan Zhang;Ting Huang;Yan-Zhou Lei;Xiao-Ling Xu;Yong Wang

作者机构：School of Materials Science&EngineeringKey Laboratory of Advanced Technologies of Materials(Ministry of Education)Southwest Jiaotong UniversityChengdu610031China Analytical and Testing CenterSouthwest Jiaotong UniversityChengdu610031China 

出 版 物：《Chinese Journal of Polymer Science》 (高分子科学（英文版）)

年 卷 期：2022年第40卷第7期

页      面：738-753页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：financially supported by the National Natural Science Foundation of China(No.51473137) the Youth Science and Technology Innovation Team of Sichuan Province of Functional Polymer Composites(No.2021JDTD0009) the Sichuan Science and Technology Program(No.2020YFG0099) 

主　　题：Poly(vinylidene fluoride)porous fibers Biomimetic modification Adsorption Oil/water treatment Antimicrobial performance 

摘      要：Polymeric membranes with the integration of various functional performances toward wastewater treatment are urgently ***,most of the polymeric membranes only exhibit a single function of highly efficiently removing one kind of *** this work,a biomimetic modification method was introduced to tailor the chemical and topological structure of the porous poly(vinylidene fluoride)(PVDF)fibers prepared by *** polydopamine(PDA)nanoparticles were homogeneously introduced onto the surface of PVDF porous fibers via precisely tailoring the concentration of dopamine,which endowed the fibers with more polar groups and bigger roughness but did not destroy the crystalline *** fibrous membranes exhibited switchable superhydrophilicity and superlipophilicity characteristics,excellent adsorption abilities toward organic dyes,heavy metal ions and *** highest adsorption capacities achieved 917.4 mg/g toward methylene blue(MB),42.6 mg/g toward Cr(VI)and 74.6 g/g toward silicone oil,***,the membrane could rapidly remove the trace MB when water flowed through the *** membrane also exhibited excellent sterilization performances,and the bacterial eliminating rate achieved 99.9%for the *** and *** excellent light-to-heat conversion ability endowed the membrane with the selfheating ability,furtherly intensifying the wastewater treatment *** work confirms that the PDA nanoparticles-decorated PVDF porous fibers might be the new generation adsorbents used in wastewater treatment.