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

International Conference on Advanced Materials for Better Future 2017

Aini, N.^1 ; Ningsih, R.^1 ; Maulina, D.^1 ; Lami, F.F.^1 ; Chasanah, S.N.^1

Department of Chemistry, Faculty of Science and Technology, Universitas Islam Negeri (UIN) Maulana Malik Ibrahim Malang, Jl. Gajayana 50, Malang

65144, Indonesia^1

关键词: Enhanced absorption;    Photocatalyst materials;    Photocatalytic activities;    Ultraviolet irradiations;    UV-vis diffuse reflectance spectra;    Visible irradiation;    Visible light driven photocatalysts;    X-ray diffraction data;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/333/1/012020/pdf
DOI  :  10.1088/1757-899X/333/1/012020

来源: IOP

【 摘 要 】

TiO2has been widely investigated due to its superior photocatalytic activity under ultraviolet irradiation among the photocatalyst materials. In this research, vanadium (V3+) was doped into TiO2to enhance its light response under visible irradiation for wider application. Vanadium was introduced into TiO2lattice 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 TiO2crystallized 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 TiO2has lowered reflectance and enhanced absorption coefficient in visible region than undoped TiO2and commercial anatase TiO2. Band gap energy for undoped and doped TiO2were respectively 3.22, 3.05, 2.93, 3.03 and 2.40 eV. Therefore vanadium doped TiO2had potential to be applied under visible light.