Effects of Zn, S Codoping on the Structure of TiO<sub>2</sub> and Photocatalytic Performance for Hydrogen Production from Glycerol Solution

化学工业与工程

Chemcial Industry and Engineering

2016, Vol. 33

Issue (5) :14-20 DOI: 10.13353/j.issn.1004.9533.20141151

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Effects of Zn, S Codoping on the Structure of TiO₂ and Photocatalytic Performance for Hydrogen Production from Glycerol Solution

Deng Wenyan, Xin Ya, Wang Xitao

School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

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Abstract

A series of Zn, S-doped TiO₂nanoparticles with different Zn/Ti molar ratios were synthesized by a sol-gel method. The structural and optional properties of the as-prepared photocatalyst were characterized by TEM, SEM, XRD, XPS, Raman and UV-Vis DRS. The results show that the doping Zn existed as the formation of ZnO, and the S existed as SO₄^2-. The doping nanoparticles have uniform diameter of 10—30 nm. And with the increase of the Zn/Ti mole ratio, the diameter of the nanoparticles declined. At the same time, the dope of Zn and acidic sites on the surface of TiO₂ strongly affected photo catalytic performance of the Zn-TiO₂ nanoparticles. Under the same conditions, the TiO₂ nanoparticles with Zn doped exhibited a higher photocatalytic activity for H₂ evolution from glycerol/water mixture than the bare TiO₂ nanoparticles. The 3% Zn-doped TiO₂ had a maximum H₂production rate of rate of 150.5 μmol/(h·g).

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	Deng Wenyan
	Xin Ya
	Wang Xitao

Keywords： titanium dioxide； nanoparticles； photocatalytic； hydrogen production； glycerol solution

Received 2014-11-04;

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Deng Wenyan, Xin Ya, Wang Xitao.Effects of Zn, S Codoping on the Structure of TiO₂ and Photocatalytic Performance for Hydrogen Production from Glycerol Solution[J] Chemcial Industry and Engineering, 2016,V33(5): 14-20

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