ZFO/TNAs复合材料的制备及其光催化性能研究  

Preparation of ZFO/TNAs composite material and study on its photocatalytic performance

作　　者：张亚杰 陆金仁[1] 包木太[1,2] 李一鸣[1,2] ZHANG Ya-jie;LU Jin-ren;BAO Mu-tai;LI Yi-ming(College of Chemistry and Chemical Engineering,Ocean University of China,Qingdao 266100,China;Laboratory of Marine Chemistry Theory and Technology of the Ministry of Education of PRC,Ocean University of China,Qingdao 266100,China)

机构地区：[1]中国海洋大学化学化工学院,山东青岛266100 [2]深海圈层与地球系统前沿科学中心和海洋化学理论与工程技术教育部重点实验室,中国海洋大学,山东青岛266100

出　　处：《现代化工》2022年第1期90-94,共5页Modern Chemical Industry

基　　金：国家自然科学基金面上项目(21773219)。

摘　　要：采用阳极氧化法制备了TiO_(2)纳米管阵列,以简便的水热法合成了纳米ZnFe_(2)O_(4)体系(ZFO),并通过电沉积法制备了不同负载量的ZFO/TNAs,利用SEM、Zeta-potential、EIS、光电流和粒径分布对其进行表征。以亚甲基蓝(MB)为目标污染物,考察了电沉积电压、沉积时间和煅烧温度对降解效果的影响。结果表明,电沉积电压和时间对光催化剂催化性能有重要影响,最优条件下制备的光催化剂在120 min对MB的降解率达到98%。5次循环降解实验对MB的降解均在95%以上,并探讨了光催化降解过程中的主要反应活性物质。TiO_(2) nanotube arrays(TNAs) are prepared by anodization method, and nano-ZnFe_(2)O_(4) system (ZFO) is synthesized by simple hydrothermal method, which are both used to prepare ZFO/TNAs photocatalyst with different loadings via electrodeposition method.ZFO/TNAs are characterized with SEM,Zeta-potential, EIS,photocurrent and particle size distribution.Taking methylene blue(MB) as target pollutant, the influence of electrodeposition voltage, deposition time and calcination temperature on the degradation effect of MB by the prepared ZFO/TNAs is studied.It is shown that the electrodeposition voltage and time have an important impact on the catalytic performance of the photocatalyst.The photocatalyst prepared under the optimal conditions leads to a degradation rate of 98% for MB in 120 minutes, over which the degradation rates of MB in five cycles of degradation experiments exceed 95%.Main reactive substances in the photocatalytic degradation process are discussed.

关 键 词：铁酸锌 二氧化钛纳米管阵列 电沉积 光催化 自由基 

分 类 号：X703[环境科学与工程—环境工程]