文章基本信息

标题：Preparation and Characterization of Ba 0.6 K 0.4 BiO 3 Nano Particles with High Visible Light Photo Catalytic Activity
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作者：K. Sharma ; S. Jain ; U. Chandrawat 等
期刊名称：Iranica Journal of Energy and Environment (IJEE)
印刷版ISSN：2079-2115
电子版ISSN：2079-2123
出版年度：2016
期号：4
页码：375-384
语种：English
出版社：Noshirvani University of TEchnology
摘要：Herein, we report the synthesis of a novel nano-structured photo catalyst Ba 0.6 K 0.4 BiO 3 by Pechini method. Prepared catalyst is characterized using simultaneous thermogravimetric differential thermal analysis (TG–DTA), ray diffraction (XRD), Scanning electron microscopy (SEM), Ultra Violet Diffuse reflectance spectroscopy (UV-DRS) and Fourier-transform infrared spectroscopy (FT-IR). The XRD pattern suggests that Ba 0.6 K 0.4 BiO 3 crystallizes in the cubic structure. The formation of perovskite phase can be confirmed by the presence of metal-oxygen band in the FTIR spectrum. SEM image reveals the nano sized plate like structure of Ba 0.6 K 0.4 BiO 3 with particle size in the range of 1045 nm. The band gap is calculated from the DRS and is found to be 1.8eV. The band gap and crystalline nature suggest that this material can be used as a photo catalyst. The photo catalytic activity of Ba 0.6 K 0.4 BiO 3 is evaluated for degradation of Malachite Green dye under visible light irradiation. The results reveal that 0.75 gL -1 Ba 0.6 K 0.4 BiO 3 with initial concentration of Malachite Green 40 mgL -1 irradiated for 30 minutes shows the highest photo catalytic activity. According to LangmuirHinshelwood kinetic model, the photo catalytic degradation of Malachite green dye follows pseudofirst-order kinetics.