Preparation, characterization and photocatalytic activities of TiO2-SrTiO3 composites

1st International Conference on New Material and Chemical Industry

材料科学;化学工业

Wang, Yan^1 ; Zhu, Lianjie^1 ; Gao, Fubo^1 ; Xie, Hanjie^1

School of Chemistry and Chemical Engineering, Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Tianjin University of Technology, Tianjin

300384, China^1

关键词: Hydrothermal methods;    Photocatalytic activities;    Photocatalytic reactions;    Photoluminescence spectrum;    Rhodamine B;    Source material;    TiO2 nanotube arrays;    UV-Vis absorption spectroscopy;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/167/1/012038/pdf
DOI  :  10.1088/1757-899X/167/1/012038

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Series of TiO2-SrTiO3composites were synthesized by hydrothermal method, using TiO2nanotube array as a precursor and Sr(OH)2as a Sr source material. TiO2-SrTiO3products with various composition were obtained by simply changing the reaction time. The as-synthesized products were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The optical properties were studied by means of UV-Vis absorption spectroscopy and photoluminescence (PL) spectra. Their photocatalytic activities were assessed by photodegradation of rhodamine B (RhB) solution and the photocatalytic reaction mechanism was discussed. The TiO2-SrTiO3composites obtained at 2 h exhibits the highest activity for photodegradation of RhB.