Effect of TiO₂ Loading Content on Properties of TiO₂/HZSM-5 Photocatalyst

Title:Effect of TiO₂ Loading Content on Properties of TiO₂/HZSM-5 Photocatalyst

Volume: 7 Issue: 2

Author(s): Wenjie Zhang, Chuanguo Li, Zheng Ma, Xijuan Chen and Hongbo He

Affiliation:

Keywords: HZSM-5, Methyl orange, photocatalysis; TiO₂.

Abstract: TiO₂ was supported on HZSM-5 using a sol-gel method. Anatase TiO₂ phase is found in both pure TiO₂ and the supported x%TiO₂/HZSM-5 samples. The well distribution of TiO₂ on the surface of HZSM-5 leads to shrinking crystallite size of anatase TiO₂. After loading TiO₂ on HZSM-5, surface area of the composite x%TiO₂/HZSM-5 becomes much larger than that of pure TiO₂. The 50%TiO₂/HZSM-5 sample contains comparatively small pores in a narrow pore size range between 5-14 nm. The supported x%TiO₂/HZSM-5 has enhanced photocatalytic activity as compared to pure TiO₂. Full oxidation state of titanium does not change after loading TiO₂ on HZSM-5, while electron binding energies of Ti2p_1/2 and Ti2p_3/2 shift to higher energy end. Photocatalytic degradation efficiency is 92.8% on 50%TiO₂/HZSM-5 after 100 min of irradiation, which is much larger than the degradation efficiency of 66.1% on pure TiO₂.

Cite this article as:

Zhang Wenjie, Li Chuanguo, Ma Zheng, Chen Xijuan and He Hongbo, Effect of TiO₂ Loading Content on Properties of TiO₂/HZSM-5 Photocatalyst, Micro and Nanosystems 2015; 7 (2) . https://dx.doi.org/10.2174/1876402907666150629181746