金属离子掺杂TiO2作为紫外光催化剂处理汽巴红废水

2012 International Conference on Biomedical Engineering and Biotechnology Pub Date : 2012-05-28 DOI:10.1109/ICBEB.2012.450

C. Sun, Xianxiang Sun

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引用次数: 1

摘要

以Ti(OC4H9)4为原料，采用溶胶-凝胶法制备了5种分别掺杂Fe3+、Ag+、Eu3+、Ni2+的TiO2光催化剂，考察了其在Ciba-Red水溶液中的紫外光催化活性。研究了pH和二氧化钛颗粒大小对汽巴红水溶液光催化降解率的影响。掺杂Fe3+和Eu3+双金属离子的TiO2表现出最好的光催化活性。光催化降解表现为准一级反应动力学。讨论了光催化降解的机理。

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TiO2 Doped with Metal Ions as the UV Photocatalyts for Ciba-Red Wastewater Treatment

Five kinds of TiO₂ photo catalysts doped with Fe³⁺, Ag⁺, Eu³⁺, Ni²⁺, respectively, by Sol-Gel method from Ti(OC₄H₉)₄, were prepared to investigate different UV photo catalytic activity in the Ciba-Red aqueous solution. The effects of pH and the size of titania particles on the photo catalytic degradation rate of Ciba-Red aqueous solution were studied. TiO₂ doped with the bimetal ions, Fe³⁺ and Eu³⁺, showed best photo catalytic activity than other catalysts. The photocalytic degradation showed a quasi-first-order reaction kinetics. The mechanism of the photo catalytic degradation was also discussed.

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2012 International Conference on Biomedical Engineering and Biotechnology

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