A Study on Preparation and Characteristic of RuO2/TiO2 Coupled Photocatalyst
YAO Bing-hua1, WANG Li-ming1, YU Xiao-jiao1, YANG Guo-nong1, ZHAO Gao-yang1,ZHENG Huai-li2
1. Department of Applied Chemistry, Xi′an University of Technology, Xi′an 710048, China 2. College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
Abstract:RuO2/TiO2 coupled photocatalyst was prepared by sol-gel-dipping method. Being a model reaction, the photocatalytic degradation of direct fast black G was investigated in RuO2/TiO2 powder suspension irradiated by UV-lamp. The results showed that the addition of RuO2 to TiO2 greatly enhanced its photocatalytic activity, and the optimum dipped content of RuO2 was 0.16%, the optimum value of the calcinations temperature and the addition of RuO2/TiO2 powder were 500 ℃ and 5.00 g·L-1, respectively. The photocatalytic degradation of direct fast black G was experimentally demonstrated to follow the Langmuir-Hinshelwood kinetic model, and the adsorption constant (14.22 L·mmol-1) and the reaction rate constant [4.94×10-3 mmol(L·min)-1] were determined, respectively.
Key words:Photocatalytic reaction;Photocatalyst;Titanium dioxide;Dye;Direct fast black G
姚秉华1,王理明1,余晓皎1,杨国农1,赵高扬1,郑怀礼2 . RuO2/TiO2复合光催化剂的制备及性能研究[J]. 光谱学与光谱分析, 2005, 25(06): 934-937.
YAO Bing-hua1, WANG Li-ming1, YU Xiao-jiao1, YANG Guo-nong1, ZHAO Gao-yang1,ZHENG Huai-li2 . A Study on Preparation and Characteristic of RuO2/TiO2 Coupled Photocatalyst . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(06): 934-937.
[1] Arana J, Tello Rendon E, Dona Rodriguez J M, Herrera Melian J A, Gonzalez Diaz O, Perez Pena J. J. Photochem. Photobiol., A: Chemistry, 2002, 148(1-3): 215. [2] Kiriakidou F, Konarides D I, Verykios X E. Catal. Today, 1996, 54(1): 119. [3] Dijkstra H J, Panneman J G M, Winkelman J J,et al. Chem. Engin. Sci., 2002, 57(22-23): 4895. [4] YE Zhao, ZHANG Han-hui, PAN Hai-bo,PAN Hong-qing,et al(叶 钊,张汉辉,潘海波,潘宏庆,等). Spectroscopy and Spectral Analysis(光谱学与光谱分析),2002,22(6):928. [5] Hoffmann M R, Martin S T, Choi W,et al. Chem. Rev., 1995, 95(1): 69. [6] Lin J, Yu J C. J. Photochem. Photobiol., A: Chemistry, 1998, 116(1): 63. [7] YU Xiang-yang, CHENG Ji-jian, YANG Yang,et al(于向阳,程继健,杨 阳,等). Journal of East China University of Science and Technology(华东理工大学学报),2000,26(3): 287. [8] Rachel A, Subrahmanyam Boule P. Appl. Catal. B: Environmental, 2002, 37(4): 301. [9] Nam W, Kim J, Han G. Chemosphere, 2002, 47(4): 1019.