Synthesis, Characterization, and Photocatalytic Activities of BiVO_4 by Carbon Adsorption Hydrothermal Method

Y. T. Niu; G. B. Guo

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Synthesis, Characterization, and Photocatalytic Activities of BiVO_4 by Carbon Adsorption Hydrothermal Method

机译：Bivo_4通过碳吸附水热法的合成，表征和光催化活性

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摘要

A new idea of prepared method for BiVO_4 nano-powders hydrothermal synthesis process was developed to avert the existent shortcomings of hydrothermal method. The thermal stability, phase structure, light absorption property, and morphology of the catalyst prepared were characterized by thermogravimetric analyzer (TG), X-ray diffraction (XRD), ultraviolet visible spectrophotometer (UV/ Vis), and transmission electron microscopy (TEM), respectively. Using methyl orange (MO) as the target degradation material and a 500-W dysprosium lamp as the visible light source to investigate photocatalytic performance of BiVO_4. We successfully prepared BiVO_4 powders with small particle size, less agglomeration and uniform distribution by carbon adsorption hydrothermal method, and the absorption wavelength of light was red-shifted, these all rendered the absorption capacity of visible light region enhancing with 94% high photocatalytic degradation rate of methyl orange at 60 min. And the possible mechanism was also discussed in this study.

机译：针对水热法合成BiVO_4纳米粉体存在的不足，提出了一种水热合成BiVO_4纳米粉体的新思路。分别用热重分析仪（TG）、X射线衍射仪（XRD）、紫外可见分光光度计（UV/Vis）和透射电镜（TEM）对所制备的催化剂的热稳定性、相结构、光吸收性能和形貌进行了表征。以甲基橙（MO）为目标降解材料，500 W镝灯为可见光源，研究了BiVO_4的光催化性能。我们采用碳吸附水热法成功制备了粒径小、团聚少、分布均匀的BiVO_4粉体，吸收波长红移，这些都使得可见光区域的吸收能力增强，在60min时甲基橙的光催化降解率高达94%。本研究还讨论了可能的机理。

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《Zeitschrift fur Anorganische und Allgemeine Chemie》 |2020年第20期|共5页
作者
Y. T. Niu; G. B. Guo;
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作者单位

School of Chemistry and Chemical Engineering Inner Mongolia University of Science and Technology Baotou 014010 P. R. China;

School of Chemistry and Chemical Engineering Inner Mongolia University of Science and Technology Baotou 014010 P. R. China;

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原文格式 PDF
正文语种 eng
中图分类化学;
关键词
Carbon adsorption; BiVO4; Visible light; Photocatalysis; Degradation mechanism;

机译：碳吸附;BIVO4;可见光;光催化;降解机制;

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Synthesis, Characterization, and Photocatalytic Activities of BiVO_4 by Carbon Adsorption Hydrothermal Method

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