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Preparation of undoped and Zn-doped TiO2 by sol-gel method with two different procedures and photocatalytic degradation on phenol

JI-GUO HUANG1, SHUO PANG1, BO WANG1, HONG-YU MA1, MENG-YANG ZHENG1, LI-LI DONG2,3,* , XING-JUAN LIU1

Affiliation

  1. Key Laboratory of Groun dwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130026, PR China
  2. Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, Changchun 130118, PR China
  3. School of Environment, North east Normal University, Changchun 130117, PR China

Abstract

The undoped and Zn-doped TiO2 nanoparticles were synthesized by sol-gel method with two different procedures. The photocatalytic activity was evaluated by photodegradation experiments of phenol. The eff ects of calcination temperatures and Zn doping amounts were discussed. It was found that the photocatalytic activity of TiO2 prepared by procedure B is much higher than TiO2 prepared by procedure A. When the calcination temperature was 450 and the Zn doping amount was 4%, the Zn-doped TiO2 sample exhibited the highest photocatalytic activity. Zn doping was shown to be an efficient method for phenol degradation under visible light, especially under solar light..

Keywords

Zn doped TiO2, Sol-gel method with two different procedures, Phenol degradation, Solar light.

Citation

JI-GUO HUANG, SHUO PANG, BO WANG, HONG-YU MA, MENG-YANG ZHENG, LI-LI DONG, XING-JUAN LIU, Preparation of undoped and Zn-doped TiO2 by sol-gel method with two different procedures and photocatalytic degradation on phenol, Optoelectronics and Advanced Materials - Rapid Communications, 9, 1-2, January-February 2015, pp.139-145 (2015).

Submitted at: Oct. 20, 2014

Accepted at: Jan. 21, 2015