Citation: WEI Yuan, KANG Shi-Zhao, LI Xiang-Qing, QIN Li-Xia, MU Jin. Effect of Cu-Ni Cocatalyst on Visible Photocatalytic Activity of TiO₂ for Phenol Preparation[J]. Chinese Journal of Inorganic Chemistry, ;2015, 31(8): 1581-1589. doi: 10.11862/CJIC.2015.198 shu

Effect of Cu-Ni Cocatalyst on Visible Photocatalytic Activity of TiO₂ for Phenol Preparation

1.
School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China

Corresponding author: KANG Shi-Zhao,
Received Date: 16 March 2015
Available Online: 19 May 2015
Fund Project: 国家自然科学基金项目(No.21301118) (No.21301118)上海市教委科技创新重点项目(No.13ZZ135)资助。 (No.13ZZ135)

The Cu-Ni co-modified TiO₂-based photocatalytic system was fabricated using TiO₂ nanoparticles as the main catalyst component by an impregnation process followed by a reduction procedure. The effect of Cu-Ni cocatalyst on the visible photocatalytic activity of TiO₂ for phenol preparation was studied using benzene as the starting material and hydrogen peroxide as the oxidant. The action mechanism of Cu-Ni cocatalyst for the photocatalytic activity of TiO₂ nanoparticles is discussed. The results show that the pure TiO₂ nanoparticles do not have photocatalytic activity for the phenol production from benzene under visible light irradiation. In contrast, the photocatalytic activity of TiO₂ nanoparticles can be enhanced obviously due to the introduction of Cu and Ni. The yield of phenol is 18% when the Cu-Ni co-modified TiO₂ nanoparticles are used as a photocatalyst. Moreover, there exists noticeable synergistic effect between Cu and Ni. The Cu-Ni co-modified TiO₂ nanoparticles exhibit much higher photocatalytic activity in comparison with that of the Cu or Ni alone modified ones due to the synergistic effect. These results imply that the cheap cocatalyst with outstanding performance than that of noble metals may be prepared by taking advantage of the synergistic effect between various metals.
- benzene;phenol;TiO₂;Cu/Ni cocatalyst;photocatalysis
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沈阳化工大学材料科学与工程学院沈阳 110142

Effect of Cu-Ni Cocatalyst on Visible Photocatalytic Activity of TiO2 for Phenol Preparation

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通讯作者: 陈斌, bchen63@163.com

Effect of Cu-Ni Cocatalyst on Visible Photocatalytic Activity of TiO₂ for Phenol Preparation