碳毡负载硫化铋光电催化降解有机污染物  

Photoelectrocatalytic degradation of organic pollutants using carbon felt-supported bismuth sulfide composites

作　　者：张辉 张一昕 侯金燕 旋湘桃 张劲峰 魏乾阳 ZHANG Hui;ZHANG Yixin;HOU Jinyan;XUAN Xiangtao;ZHANG Jinfeng;WEI Qianyang(School of Textile Science and Engineering/Key Laboratory of Functional Textile Material and Product of Ministry of Education,Xi’an Polytechnic University,Xi’an 710048,China;Keqiao Textile Industry Innovation Institute,Xi’an Polytechnic University,Shaoxing 312030,Zhejiang,China)

机构地区：[1]西安工程大学纺织科学与工程学院/功能性纺织材料及制品教育部重点实验室,陕西西安710048 [2]西安工程大学柯桥纺织产业创新研究院,浙江绍兴312030

出　　处：《纺织高校基础科学学报》2024年第6期42-52,共11页Basic Sciences Journal of Textile Universities

基　　金：国家自然科学基金(51873169);大学生创新创业训练计划项目(S202310709040)。

摘　　要：为了探明织物结构对负载催化剂的复合材料光电催化性能的影响,采用水热法对3种不同结构的碳毡(CF)沉积硫化铋(Bi_(2)S_(3))颗粒,测定了制备所得CF-Bi_(2)S_(3)复合材料光电催化降解有机污染物的性能。结果表明,碳毡的结构会显著影响Bi_(2)S_(3)的负载量,具有较大比表面积和适中孔隙结构的碳毡复合材料,光电催化降解染料和抗生素表现最佳。光电协同催化降解有机污染物能力较单独的光催化、电催化明显增强,主要是因为Bi_(2)S_(3)中的电子向碳纤维迁移,延迟了电子与空穴的复合,主要活性物种为空穴(h+)和超氧阴离子自由基(O_(2)·^(-))。该研究为光电催化技术在有机污染物降解中的应用提供了新的思路和材料选择。To investigate the impact of fabric structure on the photoelectrocatalytic performance of catalyst-loaded composites,a hydrothermal method was employed to deposit bismuth sulfide(Bi_(2)S_(3))particles onto three types of carbon felt(CF)with different structures.The photoelectrocatalytic degradation performance of organic pollutants by the resulting CF-Bi_(2)S_(3) composites was then evaluated.The results revealed that the structure of the carbon felt significantly influenced the loading amount of Bi_(2)S_(3).Specifically,composites with carbon felt featuring a large specific surface area and moderate pore structure exhibited the best performance in the photoelectrocatalytic degradation of dyes and antibiotics.The synergistic photoelectrocatalytic degradation capability of organic pollutants was significantly enhanced compared to individual photocatalytic or electrocatalytic processes,primarily due to the migration of electrons from Bi_(2)S_(3) to the carbon fibers,which delayed the recombination of electrons and holes.The main active species were identified as holes(h+)and superoxide anion radicals(O_(2)·^(-)).This study provides new insights and material choices for the application of photoelectrocatalytic technology in the degradation of organic pollutants.

关 键 词：碳毡 硫化铋 光电催化 有机污染物 降解 

分 类 号：TS151[轻工技术与工程—纺织材料与纺织品设计]