Journal of Jilin University(Earth Science Edition) ›› 2015, Vol. 45 ›› Issue (6): 1833-1838.doi: 10.13278/j.cnki.jjuese.201506207

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Preparation and Optimization of the Photocatalytic Materials Under Visible Light with Response Surface Methodology

Zou Donglei, Li Tingting, Gao Mengwei, Qian Ning, Zhang Gaoruiyang, Dong Shuangshi   

  1. Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China
  • Received:2015-03-04 Published:2015-11-26

Abstract:

In order to develop the high photocatalytic performance of TiO2 under visible light and make it easy to be separated from the treated liquid, a visible light response photocatalyst is prepared through doping of the upconversion luminescence agent Er3+:YAlO3 with TiO2, and immobilizing Er3+:YAlO3/TiO2 on the surface of Polyurethane Sponge (PS) by use of sol-gel method. Based on the surface response methodology (RSM), an experiment is designed to assess the individual and interaction effects of the three operating parameters (hydrothermal treatment temperature, TiO2 concentration, and PS-to-TiO2 sol ratio) on the efficiency of phenol removal. The corresponding optimum preparing conditions are 110-114 ℃, 60-65 mg/L, and 20 g/L. The measured efficiency of phenol removal is maximijed under these conditions.

Key words: upconversion luminescence, photocatalytic degradation, response surface methodology, phenol, polyurethane sponge

CLC Number: 

  • TU992.3

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