K3V5O14的合成及光催化性能和吸附性能

doi:10.11896/cldb.18030052

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Abstract K₃V₅O₁₄ was prepared via solid phase method and characterized by powder X-ray diffraction (PXRD), scanning electron microscope (SEM) and transmission electron microscope (TEM). The influences of reaction temperatures and times for the structure, morphology and UV-Vis diffuse reflectance spectroscope of K₃V₅O₁₄ were studied. The photocatalytic activity and adsorption performance were tested in details. The results show the photocatalytic activity of K₃V₅O₁₄ with layer structure is weak by the degradation of methylene blue (MB) under visible light and the degradation rate is lower than 10% in 75 min. However, the adsorption performance is higher and MB is selected and adsorbed from cationic dyes including MB, methyl orange and Rhodamine B. The adsorption rate is 84.46% at 45 min when the optimal dosage of adsorbent is 0.5 g·L^-1. The adsorption kinetics follows the pseudo-second-order kinetic models and the maximum adsorption capacity is 75.19 mg·g^-1.

Key words： tripotassium phyllo-pentavanadate (K₃V₅O₁₄) degradation rate adsorption rate photocatalytic activity adsorption performance

Published: 31 May 2019

CLC number:

O611.62

Fund:This work was financially supported by the National Natural Science Foundation of China (21301132, 51402221, 51472186, 51372177), the China Scholarship Council (201708420019), the Research Fund for the Doctoral Program of Higher Education of China (20134219120002), the Research Fund of Department of Education of Hubei Province (Q20151109).

About author:: Yaming Lireceived her master’s degree in engineering from Wuhan University of Science and Technology in 2017. She has applied a national invention patents and now works in Sinosteel Luoyang Institute of Refractories Research Company Limited.Yanjun Liobtained his master’s degree in organic chemistry from the Central China Normal University (CCNU) in 2004 and served in School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology (WUST) from 2004 till now. He is currently an associate professor and obtained Ph.D. degree from Wuhan University (WHU) in 2011. In addition, he performed research as a visiting scholar in 2017-2018 in University of Houston. And he has published more than 20 journal papers, applied 8 national invention patents and 6 of them were authorized. His research interests focus on new functional materials with photoelectric properties including nonlinear optical materials, energy materials, photocatalytic degradation and photocatalytic hydrogen production.

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	LI Yaming
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Cite this article:

LI Yaming,LI Yanjun,ZHANG Jiang, et al. Synthesis, Photocatalytic Activity and Adsorption Performance of K₃V₅O₁₄[J]. Materials Reports, 2019, 33(12): 1926-1931.

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http://www.mater-rep.com/EN/10.11896/cldb.18030052 OR http://www.mater-rep.com/EN/Y2019/V33/I12/1926

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