摘要
采用有机酸辅助调控和低温液相沉淀法制备碘氧化铋/氧化石墨烯(BiOI/GO)光催化剂,通过FTIR、FESEM、拉曼光谱和XRD对其结构进行了表征,研究了BiOI/GO光催化剂光降解甲基橙染料的循环再生利用性能。结果表明:BiOI/GO光催化剂对甲基橙染料的第一次光催化降解率为96.8%,第五次光催化降解率仍达81.2%。XRD表明BiOI/GO光催化剂主要成分为高结晶度的BiOI,FTIR初步表明BiOI/GO光催化剂具有氧化石墨烯和BiOI的特征吸收峰。拉曼光谱表明BiOI/GO光催化剂具有氧化石墨烯的成分和结构。FESEM表明BiOI/GO光催化剂形状为片状或层状,氧化石墨烯以薄纸状覆盖在BiOI催化剂表面。
Bismuth iodide/Graphene oxide(BiOI/GO)photocatalysts were prepared by organic acid assisted regulation and low temperature liquid phase precipitation.Structure of BiOI/GO photocatalysts were characterized by FTIR,FESEM,Raman and XRD.The results showed that the photocatalytic degradation of methyl orange dye by BiOI/GO photocatalysts was 96.8%in the first time and 81.2%in the fifth time.XRD showed that BiOI/GO photocatalysts were mainly composed of BiOI with high crystallinity.FTIR preliminarily showed that BiOI/GO photocatalysts had the characteristic absorption peaks of graphene oxide and BiOI.Raman spectroscopy showed that BiOI/GO photocatalysts had the composition and structure of graphene oxide.FESEM indicated that the BiOI/GO photocatalysts were in the shape of sheet or layer,and the graphene oxide was covered on the BiOI catalyst surface in the form of thin paper.
作者
袁庆玲
万涛
简梦露
罗旺
黄正根
卢智
韩仁杰
白治平
YUAN Qing-ling;WAN Tao;JIAN Meng-lu;LUO Wang;HUANG Zheng-gen;LU Zhi;HAN Ren-jie;BAI Zhi-ping(Collage of Materials and Chemistry﹠Chemical Engineering,Chengdu University of Technology,Chengdu 610059,China;Mineral Resources Chemistry Key Laboratory of Sichuan Higher Education Institutions,Chengdu University of Technology,Chengdu 610059,China)
出处
《功能材料与器件学报》
CAS
2019年第3期195-199,共5页
Journal of Functional Materials and Devices
基金
四川省科技厅重点研发计划项目(2019YFG0264)
四川省人社厅留学回国人员科技活动择优资助项目(19BZ08-009)
地质灾害防治与地质环境保护国家重点实验室基金项目(SKLGP2018Z005).
关键词
氧化石墨烯
碘氧化铋
甲基橙
光催化剂
Graphene oxide
Bismuth iodide
Methyl orange
Photocatalyst
