Photocatalytic Degradation of Rhodamine B by Recyclable Ag Br/Polypyrrole(PPy)Nano-Catalysts  

作　　者：YIN Xiaogang LIU Xinyun LI Hang WU Huimin FU Hai GONG Wei 

机构地区：[1]Key Laboratory of Functional Materials Chemistry of Gui Zhou Province,School of Chemistry and Materials Science,Gui Zhou Normal University,Guiyang 550001,China [2]School of Pharmaceutical Sciences,Guizhou Medical University,Guiyang 550025,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2023年第5期1198-1204,共7页武汉理工大学学报（材料科学英文版）

基　　金：Funded by Guizhou Provincial Natural Science Foundation(No.[2020]1Y030);Young Science and Technology Talents of Education Department of Guizhou Province(No.KY[2016]136);Doctoral Start-up Fund by Guizhou Normal University in 2014,The Guizhou Province Science and Technology Planning Project(No.[2016]1100);National Natural Science Foundation of China(No.21764004)。

摘　　要：We investigated the removal of the organic dye rhodamine B in wastewater with recyclable AgBr/polypyrrole(PPy)nano-photocatalysts.With PPy as an active base for electron transfer,and hexadecyltrimethylammonium bromide(CTAB)as both the soft-templating agent and the bromine source,a series of AgBr/PPy nano-photocatalysts containing various proportions of silver were prepared in a convenient one-step synthesis procedure.The synthesized catalysts were characterized by TG analysis to reveal that,in comparison with pure PPy,the interaction between PPy and AgBr led to increased thermal stability.Chemical combination of PPy and AgBr was observed through XRD and XPS analyses.For the morphology study,the AgBr particles were found to be well dispersed in the PPy nanowire network from SEM results.In the photodegradation experiments,up to 92%rhodamine B was degraded by the AgBr/PPy catalysts in the period of 1 hour under 254 nm UV light.The catalysts could maintain 60%catalytic efficiency after 3 cycles in the recyclability test.

关 键 词：POLYPYRROLE AGBR PHOTOCATALYSTS rhodamine B 

分 类 号：O64[理学—物理化学]