纳米银粒子耦合BiVO_(4)和海泡石的制备及性能研究  

Preparation and properties of silver nanoparticles coupled with BiVO_(4) and sepiolite

作　　者：王亮 舒友菊[2] 郑亚超 施冬健 陈明清 WANG Liang;SHU Youju;ZHENG Yaochao;SHI Dongjian;CHEN Mingqing(School of Chemical and Material Engineering,Jiangnan University,Wuxi 214122,Jiangsu,P.R.China;Luoyang Institute of Science and Technology,Luoyang 471003,Henan,P.R.China)

机构地区：[1]江南大学化学与材料工程学院,江苏无锡214122 [2]洛阳理工学院,河南洛阳471003

出　　处：《重庆大学学报》2021年第6期118-126,共9页Journal of Chongqing University

基　　金：国家自然科学基金项目(21571084)。

摘　　要：通过水热法制备了BiVO_(4)和BiVO_(4)/海泡石光催化剂,利用AgNO 3作为前体试剂,在光照的条件下,制备了不同银负载量的Ag/BiVO_(4)/海泡石复合光催化剂。利用XRD、SEM、TEM、XPS和DRS等测试手段对光催化剂的性质等进行了表征。以罗丹明B为模型污染物,考察了不同银负载量对Ag/BiVO_(4)/海泡石复合光催化剂性能的影响。结果表明,当银的负载量达到60%时,复合光催化剂对罗丹明B的脱色效果最好,可在10 min之内完全将罗丹明B脱色。同时0.6Ag/BiVO_(4)/海泡石样品具有一定的循环稳定性,可多次使用。BiVO_(4) and BiVO_(4)/sepiolite were prepared by hydrothermal method,and Ag/BiVO_(4)/sepiolite composite photocatalysts with different Ag loadings were prepared under the light using AgNO 3 as a precursor reagent.XRD,SEM,TEM,XPS and DRS were used to characterize the photocatalysts.Using rhodamine B as a model pollutant,the effects of different Ag loadings on the performance of Ag/BiVO_(4)/sepiolite composite photocatalysts were investigated.The results show that when the loading of Ag reaches 60%,the composite photocatalyst has the best decolorization effect on rhodamine B,and the rhodamine B can be completely decolorized within 10 minutes.At the same time,the 0.6Ag/BiVO_(4)/sepiolite sample shows substantial recyclability and cycling stability.

关 键 词：Ag/BiVO_(4)/海泡石 光催化 可见光 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学]