摘要
以六水合硝酸锌和偏钒酸铵为无机源,十六烷基三甲基溴化铵为表面活性剂,采用水热法合成纳米焦钒酸锌。考察了表面活性剂的浓度对纳米焦钒酸锌结构和性能的影响,通过XRD、SEM等对合成产物进行表征,以亚甲基蓝为目标降解物进行光催化实验,并对光催化机理进行了自由基捕获测试。其中制备的片状结构Zn_(3)(OH)_(2)V_(2)O_(7)·2H_(2)O具有最佳的光催化性能,在光照射140 min后对MB的降解率达到98%左右。
Zn_(3)(OH)_(2)V_(2)O_(7)·2H_(2)O was synthesized by hydrothermal method using hexahydrate zinc nitrate and ammonium metavanadate as inorganic source and cetyltrimethyl ammonium bromide as surfactant.The effects of the concentration of surfactant on the structure and properties of Zn_(3)(OH)_(2)V_(2)O_(7)·2H_(2)O pyrovanadate were investigated.The products were characterized by XRD and SEM,and the photocatalytic activity of methylene blue was investigated.The flaky Zn_(3)(OH)_(2)V_(2)O_(7)·2H_(2)O has the best photocatalytic activity,and the degradation rate of MB is about 98%after 140 min irradiation.
作者
张辉霞
贾相华
左桂鸿
孙芳
ZHANG Huixia;JIA Xianghua;ZUO Guihong;SUN Fang(School of Physics and Electronic Engineering,Mudanjiang Normal University,Mudanjiang 157011,China)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2021年第S01期48-50,共3页
Materials Reports
基金
牡丹江师范学院项目(QN201605)。
关键词
焦钒酸锌
光催化
带隙
自由基捕获
Zn_(3)(OH)_(2)V_(2)O_(7)·2H_(2)O
photocatalysis
band gap
free radical trapping
