| ZnO/TiO2复合涂层电极的制备及其光电性能 |
| Photoelectric Properties and Preparation of ZnO/TiO2 Composite Coating Electrode |
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| 摘要: 以氧化铟锡导电玻璃为基材，采用电泳沉积法制备负载型ZnO/TiO2复合涂层，经450 ℃后续烧结处理后，采用XRD、SEM、EDX和UV-Vis DRS对ZnO/TiO2复合涂层进行表征；在pH=7.00的磷酸盐缓冲溶液中，分别测试ZnO/TiO2复合涂层电极在紫外灯和100 W白炽灯辐照下的电化学阻抗谱、Tafel极化曲线和循环伏安等电化学性质。结果表明：ZnO以200~300 nm晶粒分散于复合涂层中，质量百分比为0.74%；ZnO/TiO2复合涂层在可见光区有一定的吸收；在可见光辐照下ZnO/TiO2复合涂层电极具有较好的光电活性，并对水的分解具有较强的光电催化活性。 |
| 关键词: 电泳沉积 ZnO/TiO2复合涂层电极 光电性能 ITO导电玻璃 |
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| Abstract: ZnO/TiO2 composite coating was prepared on indium-tin-oxide (ITO) conductive glass surface by electrophoretic deposition. After 450℃ subsequent sintering treatment, ZnO/TiO2 composite coating was characterized by XRD, SEM, EDX and UV-Vis DRS. And then, under ultraviolet light and visible light illumination, the photoelectric properties of ZnO/TiO2 composite coating electrode such as electrochemical impedance spectroscopy (EIS), Tafel polarization curve and cyclic voltammetry (CV) were measured on the pH=7.00 phosphate buffer system (PBS). The results show that ZnO grain size is 200~300 nm dispersed in ZnO/TiO2 composite coating and the mass percentage of ZnO is 0.74%, visible light is absorbed to some extent, electrochemical tests indicate that composite coating electrode takes on excellent photoelectrocatalytic activity for decomposition of H2O under visible light illumination. |
| Keywords: electrophoretic deposition ZnO/TiO2 composite coating electrode photoelectric property indium-tin-oxide (ITO) conductive glass |
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| 文新宇,黄紫洋.ZnO/TiO2复合涂层电极的制备及其光电性能[J].无机化学学报,2011,27(6):1128-1132. |
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