Visible light driven photocatalyst of vanadium (V3+) doped TiO2 synthesized using sonochemical method

Aini, N. and Ningsih, R. and Maulina, Digha and Lami, F. F. and Chasanah, S. N. (2018) Visible light driven photocatalyst of vanadium (V3+) doped TiO2 synthesized using sonochemical method. IOP Conference Series: Materials Science and Engineering, 333 (1). 012020. ISSN 17578981

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Abstract

TiO2 has been widely investigated due to its superior photocatalytic activity under ultraviolet irradiation among the photocatalyst materials. In this research, vanadium (V3+) was doped into TiO2 to enhance its light response under visible irradiation for wider application. Vanadium was introduced into TiO2 lattice at various concentration respectively 0.3, 0.5, 0.7 and 0.9% using simple and fast sonochemical method. X-Ray Diffraction data show that vanadium doped TiO2 crystallized in anatase phase with I41amd space group. X-Ray Diffraction pattern shifted to lower value of 2θ due to vanadium dopant. It indicated that V3+ was incorporated into anatase lattice. UV-Vis Diffuse Reflectance Spectra was revealed that the doped TiO2 has lowered reflectance and enhanced absorption coefficient in visible region than undoped TiO2 and commercial anatase TiO2. Band gap energy for undoped and doped TiO2 were respectively 3.22, 3.05, 2.93, 3.03 and 2.40 eV. Therefore vanadium doped TiO2 had potential to be applied under visible light.

Item Type: Journal Article
Keywords: Doping (additives); Energy gap; Irradiation; Light; Photocatalysts; Reflection; Sonochemistry; Vanadium; X ray diffraction; Enhanced absorption; Photocatalyst materials; Photocatalytic activities; Ultraviolet irradiations; UV-vis diffuse reflectance spectra; Visible irradiation; Visible light driven photocatalysts; X-ray diffraction data; Titanium dioxide
Divisions: Faculty of Mathematics and Sciences > Department of Chemistry
Depositing User: Heni Kurnia Ningsih
Date Deposited: 24 May 2018 16:25

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