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Role of aluminum in aggregated TiO 2 spheres for photocatalytic degradation of RBR X-3B

PING ZHAO1, YINGHAO DONG1, HONGLIANG XIN1, WENJIE ZHANG1,*

Affiliation

  1. School of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang 110159, China

Abstract

Aggregated Al TiO2 sphere s w ere synthesized by sol gel method using graphite sphere template. The diameter of the spheres is almost as large as 500 nm. Anatase TiO2 forms in all the samples, and doping of aluminum in the anatase TiO2 skeleton hinders crystal growing. The binding energies of Ti2 p 3/2 and Ti2 p 1/2 electrons dec r ease after doping aluminum in TiO2 spheres. The surface area of the aggregated Al TiO 2 spheres is doubled after doping 0.1% of aluminum in the TiO2 skeleton. The maximum photocatalytic degradation efficiency is obtained by the 0.1%Al TiO2 aggregated spheres. Decoloration efficiency on the 0.1%Al TiO2 aggregated spheres decreases slowly after several treating cycles..

Keywords

Photocatalytic, Sol-gel, TiO2, Doping, Aluminum.

Citation

PING ZHAO, YINGHAO DONG, HONGLIANG XIN, WENJIE ZHANG, Role of aluminum in aggregated TiO 2 spheres for photocatalytic degradation of RBR X-3B, Optoelectronics and Advanced Materials - Rapid Communications, 13, 7-8, July-August 2019, pp.477-481 (2019).

Submitted at: Oct. 14, 2018

Accepted at: Aug. 20, 2019