Adsorption and photocatalysis are regarded as two desirable technologies for wastewater remediation,but are still unsatisfactory in removal effect,eco-friendly regeneration and facile reusability.In this study,we developed a composite nanofibrous membrane material with excellent removal performance for organic pollutants based on synergistic adsorption and photocatalysis.A novel boron-doped,nitrogen-deficient graphitic carbon nitride(B-C3N4)photocatalyst as well as an amphiphilic copolymer of methyl methacry-late and acrylic acid(p(MMA-AA))were synthesized respectively,and then used to modify polyethersul-fone for the fabrication of composite nanofibrous membrane with improved hydrophilicity,negatively-charge property and enhanced visible light response simultaneously.Subsequently,the synergistic effect of adsorption and photocatalytic degradation for organic pollutants were identified especially and re-sulted in an excellent removal efficiency even superior to the combination of adsorption and photocat-alytic degradation,which could be called a"1+1＞2"effect.In addition,the regeneration and reusability,the purification ability for multicomponent wastewater,and the photocatalytic mechanism,were investi-gated and discussed systematically.In this work,we not only prepared the nanofibrous membrane with synergistic effect of adsorption and photocatalysis,but also provided a versatile approach to design dual-functional support material to ensure the practical applications of powdery photocatalyst in wastewater treatment.

Yuanting Xu;Wanting Lin;Dandan Yuan;Shifan Chen;Fang Li;Yanping Long;Chao He;Weifeng Zhao;Changsheng Zhao

College of Polymer Science and Engineering,State Key Laboratory of Polymer Materials Engineering,Sichuan University,Chengdu 610065,China;Department of Polymer Science and Engineering,Zhejiang University,Hangzhou 310027,China;Med-X Center for Materials,Sichuan University,Chengdu 610041,China;College of Chemical Engineering,Sichuan University,Chengdu 610065,China

材料科学技术（英文版）

[1]Yuanting Xu;Wanting Lin;Dandan Yuan;Shifan Chen;Fang Li;Yanping Long;Chao He;Weifeng Zhao;Changsheng Zhao-."1+1＞2":Highly efficient removal of organic pollutants by composite nanofibrous membrane based on the synergistic effect of adsorption and photocatalysis)[J].材料科学技术（英文版）,2022(29):76-85

methacry,polyethersul,fone

1+1,Highly,efficient,removal,organic,pollutants,by,composite,nanofibrous,membrane,synergistic,effect,adsorption,photocatalysis,Adsorption,regarded,two,desirable,technologies,wastewater,remediation,but,still,unsatisfactory,eco,friendly,regeneration,facile,reusability,In,this,study,developed,material,excellent,performance,novel,boron,doped,nitrogen,deficient,graphitic,carbon,nitride,C3N4,photocatalyst,well,amphiphilic,copolymer,methyl,late,acrylic,acid,MMA,AA,were,synthesized,respectively,then,used,modify,fabrication,improved,hydrophilicity,negatively,charge,property,enhanced,visible,light,response,simultaneously,Subsequently,photocatalytic,degradation,identified,especially,sulted,efficiency,even,superior,combination,which,could,be,called,addition,purification,multicomponent,mechanism,investi,gated,discussed,systematically,work,not,only,prepared,also,provided,versatile,approach,design,dual,functional,support,ensure,practical,applications,powdery,treatment

0.56126