Synthesis and Characterization of Highly Efficient Visible-Light Induced C, N and S Co-doped TiO₂ Photocatalyst

Title:Synthesis and Characterization of Highly Efficient Visible-Light Induced C, N and S Co-doped TiO₂ Photocatalyst

Volume: 11 Issue: 4

Author(s): Jingkuo Chen, Wuyou Fu, Bowen Zhang, Huayang Li, Xinglin Fu and Hari Bala

Affiliation:

Keywords: Band structure, C, N and S co-doped, photocatalyst, visible light.

Abstract: The C, N and S co-doped TiO₂ (C-N-S-TiO₂) photocatalyst was prepared by sol-gel method using titanium n-butoxide [Ti(OC₄H₉)₄] and acetic acid (HAc) as raw materials and modifier, thiourea (H₂N(CS)NH₂) as solid substrates and doping source. The X-ray diffraction, transmission electron microscope, N2 adsorption-desorption measurements, X-ray photoelectron spectroscopy and UV-visible diffuse reflectance spectroscopy were used to characterize as-prepared samples. The results indicated that the thermal dissociation process of H₂N(CS)NH₂ could introduce doping elements to adjust the band structure and promote the crystal transformation. The C-N-S-TiO₂ photocatalyst showed highly photocatalytic activity under visible light irradiation, and the surface reaction rate constant was approximately 4 times higher than pure TiO₂ sample.

Cite this article as:

Chen Jingkuo, Fu Wuyou, Zhang Bowen, Li Huayang, Fu Xinglin and Bala Hari, Synthesis and Characterization of Highly Efficient Visible-Light Induced C, N and S Co-doped TiO₂ Photocatalyst, Current Nanoscience 2015; 11 (4) . https://dx.doi.org/10.2174/1573413711666150130195548