Liu Huiling, Zhou Ding, Li Xiangzhong, Yue Bingtao
Department of Environmental Science and Engineering, Harbin Institute of Technology, Harbin, 150001.
Huan Jing Ke Xue. 2002 Jul;23(4):47-51.
An innovative mesh titanium dioxide (TiO2) electrode was prepared by anodisation. The morphology and the crystalline texture of the TiO2 film on electrode were examined by SEM and Raman spectroscopy respectively. The results indicated that the structure and properties of the film depended on anodisation rate, and the anatase was the dominant component under the controlled experimental conditions. Biasing could increase the efficiency of photocatalytic degradation of organic matters. Mineralization Rhodamine B (Rh B) was complete relatively in photoelectro-catalytic (PEC) oxidation. Both chromogen destruction of Rh B and de-ehtylation in PEC degradation took place simultaneously.
通过阳极氧化制备了一种创新的网状二氧化钛(TiO₂)电极。分别采用扫描电子显微镜(SEM)和拉曼光谱对电极上TiO₂薄膜的形貌和晶体结构进行了检测。结果表明,薄膜的结构和性能取决于阳极氧化速率,在可控实验条件下,锐钛矿是主要成分。施加偏压可提高光催化降解有机物的效率。在光电催化(PEC)氧化中,罗丹明B(Rh B)的矿化相对完全。在PEC降解过程中,Rh B的发色团破坏和脱乙基反应同时发生。