ZnBi水滑石表面吸附与光催化性能关系研究  

Study on the Relationship between the Adsorption Behavior of Zn/Bi Hydrotalcite and Its Photocatalytic Performance

作　　者：彭小英 郭慧 孙密 刘方华[1] 相秉志 周勇 何云娟 陈博 宋军伟[1] Peng Xiaoying;Guo Hui;Sun Mi;Liu Fanghua;Xiang Bingzhi;Zhou Yong;He Yunjuan;Chen Bo;Song Junwei(Green Building Institute,Urban construction College,Jiangxi University of Technology,Nanchang,Jiangxi 330098)

机构地区：[1]江西科技学院城市建设学院,绿色建筑研究所,江西南昌330098

出　　处：《非金属矿》2022年第4期80-84,共5页Non-Metallic Mines

基　　金：江西科技学院校级自然科学项目(ZR1915);江西省卫生健康委科技计划项目(20202019);江西省科技厅面上项目(20202BABL204063);江西省教育厅科技项目(GJJ212019,GJJ212002)。

摘　　要：为考察ZnBi水滑石材料的光催化氧化还原性能,通过共沉淀法一步组装制备不同比例的ZnBi水滑石光催化材料,分别选取降解罗丹明B(RhB)染料和CO甲烷化反应作为探针反应评价其光催化性能。对催化材料的表面结构和性质进行分析表征,结果表明,当Zn和Bi物质的量比为3∶1时,ZnBi水滑石具有较大的比表面积,较宽的吸光范围和丰富的表面吸附水,对RhB氧化降解性能最优,同时对CO和H_(2)分子具有特殊的吸附电子转移行为,CO还原活性优异。To investigate the photocatalytic oxidation-reduction properties of ZnBi hydrotalcite,different ratios of ZnBi hydrotalcite were prepared by one-step co-precipitation method,degradation of Rhodamine B dye and methanation of CO were selected as probe reactions.The surface structure and properties of ZnBi hydrotalcite were characterized,the results showed that when the molar ratio of Zn and Bi was 3∶1,the ZnBi hydrotalcite had a large specific surface area,a wide light absorption range and abundant surface adsorbed water.In addition,it had the best oxidative degradation for RhB,and also had special adsorption electron transfer behavior for CO and H_(2) molecules,so there was excellent redox activity.

关 键 词：Zn/Bi水滑石 光催化氧化降解 光催化还原CO 吸附行为 

分 类 号：O643[理学—物理化学]