Study on Preparation and Photoelectrocatalytic Activity of Supported TiO₂ Catalysts

Abstract:

TiO₂/α-Al₂O₃ is prepared by liquid-phase deposition method from titanium ammonium fluoride. The morphography and crystal form of supported catalyst are analyzed by XRD and SEM. The results show that anatase is detected when the calcination temperature is 800°C, the interaction of TiO₂ and support inhibit TiO₂ transfer into anatase. The addition of polyvinyl alcohol makes the active component evenly distributed. It is found that when support for catalyst is honeycomb column α-Al₂O₃, loading amount is 4.0%, and calcination temperature is 800°C, the CODcr removal rate could reach 66%. Furthermore, no obvious evidence of deactivation and intensity for the catalyst could be seen after running for 100 hours.

• Periodical: Advanced Materials Research (Volumes 807-809)
• Pages: 1555-1558
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.807-809.1555
• Online since: September 2013
• Authors: Jing Miao, Hai Bin Yu, Yan Min Sun, Hou Kai Teng, Xiao Yun Liu, Xian Jun Zeng, Shi Peng Li, Chen Xin Xie, Yun Le Sui, Peng Zhou
• Keywords: Photoelectrocatalytic, TiO₂, Wastewater

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