二氧化钛/锑掺杂二氧化锡/还原氧化石墨烯复合材料的制备及其光阴极保护性能研究  

Preparation of TiO_(2)/Sb-SnO_(2)/RGO composite and their photocathode protection property

作　　者：王培君 左士祥[1,2] 严向玉 刘文杰 李霞章[1] 姚超[1] Wang Peijun;Zuo Shixiang;Yan Xiangyu;Liu Wenjie;Li Xiazhang;Yao Chao(Advanced Catalysis and Green Manufacturing Collaborative Innovation Center,Changzhou University,Changzhou 213164;R&D Center of Xuyi Attapulgite Applied Technology,Changzhou University,Xuyi 211700)

机构地区：[1]常州大学,江苏省先进催化与绿色制造协同创新中心,常州213164 [2]常州大学盱眙凹土研发中心,盱眙211700

出　　处：《化工新型材料》2021年第2期135-139,共5页New Chemical Materials

基　　金：江苏省高等学校自然科学研究重大项目(18KJA430003);淮安市自然科学研究计划(HAB201952)。

摘　　要：通过原位生长制备了锑掺杂二氧化锡/还原氧化石墨烯(Sb-SnO_(2)/RGO)复合材料,再通过水热法生长TiO_(2)制备了TiO_(2)/Sb-SnO_(2)/RGO复合材料。采用X射线衍射、扫描电镜、紫外-可见光、荧光光谱和光电化学等技术对材料的晶体结构、形貌、光吸收特性和电子复合情况进行了表征。结果表明:TiO_(2)与Sb-SnO_(2)形成了异质结构,扩大了复合材料的光响应范围,RGO的引入增强了复合材料在可见光区的响应,并提高了电子迁移速率。与TiO_(2)相比,TiO_(2)/Sb-SnO_(2)/RGO复合材料具有更佳的光阴极保护性能。Firstly,Sb-doped SnO_(2)/graphene(Sb-SnO_(2)/RGO)composites were prepared by in-situ growth,and then TiO_(2)/Sb-SnO_(2)/RGO composites were prepared by hydrothermal growth of TiO_(2).The crystal structure,morphology,light absorption properties and electronic recombination of the materials were characterized byX-ray diffraction(XRD),scanningelectron microscopy(SEM),ultraviolet-visible(UV-Vis-DRS),photoluminescence(PL)and photoelectrochemistry.The results shown that TiO_(2)formed a heterojunction with Sb-SnO_(2),which expanded the photoresponse range of the composites.The introduction of RGO enhanced the response of the composites in the visible region and increased the electron migration rate.Compared with TiO_(2),TiO_(2)/Sb-SnO_(2)/RGO had better photocathode protection properties.

关 键 词：锑掺杂二氧化锡 石墨烯 异质结构 光阴极保护 

分 类 号：TB332[一般工业技术—材料科学与工程]