近红外区LSPR吸收的自掺杂CuS的制备及其光催化性能  

Preparation of self-doped CuS with NIR LSPR absorption and its photocatalytic properties

作　　者：邢观洁 周春丽 姬爱民 杨会静[1] XING Guanjie;ZHOU Chunli;JI Aimin;YANG Huijing(Tangshan Normal University,Tangshan 063000,China)

机构地区：[1]唐山师范学院,河北唐山063000

出　　处：《印染》2024年第5期16-20,共5页China Dyeing and Finishing

基　　金：国家自然科学基金资助项目(21872011);唐山市科技计划项目(20130217b);唐山师范学院科学研究基金项目成果(2020A12)。

摘　　要：通过有机胺辅助低温溶剂热软模板法合成了具备丰富铜离子空位的自掺杂CuS超薄纳米片,铜离子空位缺陷赋予材料优异的近红外区局域表面等离子共振吸收性能。在模拟太阳光下,自掺杂CuS催化剂60 min可以将20 mg/L的罗丹明B完全降解,其动力学研究显示该反应是一级动力学反应。自掺杂CuS经过5次循环后对罗丹明B的降解率仍可达91%。活性物质捕获试验证明空穴h^(+)是反应中最主要的活性物质,O_(2)^(-)·和OH·也发挥了一定的作用。Self-doped CuS ultrathin nanodisks are synthesized through alkylamine-assisted low-temperature solvothermal soft template strategy with abundant copper ion vacancy,which exhibit strong localized surface plasmon resonance(LSPR)in the NIR region.20 mg/L RhB is almost photodegraded in 60 min under simulated sunlight and the kinetic model conforms to the first order kinetic reaction.After five cycles,the photocatalytic degradation of RhB by self-doped CuS still reaches 91%.Agent capture experiments verify that hole h^(+)is the main active species while superoxide radical and hydroxyl radical also play a certain role.

关 键 词：光催化 硫化铜 自掺杂 局域表面等离子共振 

分 类 号：TS199[轻工技术与工程—纺织化学与染整工程] O643.36[轻工技术与工程—纺织科学与工程] O644.1[理学—物理化学]