Bi2MoO6的合成及活化过氧单硫酸酯增强可见光光催化活性

IF 1.5 4区材料科学 Q3 CRYSTALLOGRAPHY

Crystal Research and Technology Pub Date : 2021-05-25 DOI:10.1002/crat.202000219

Qianqian Zhao, Mingyang Long, Hongmiao Li, L. Wang, X. Bai, Yujie Zhang, Di Li

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引用次数: 4

摘要

采用常规水热法制备了Bi2MoO6纳米片。Bi2MoO6光催化剂在可见光下对亚甲基蓝的降解表现出较低的光催化活性。为了进一步提高降解效率，利用Bi2MoO6活化过氧单硫酸盐在可见光下降解亚甲基蓝。Bi2MoO6纳米片在Bi2MoO6/Vis/过氧单硫酸酯(PMS)体系中表现出优异的降解效率。考察了PMS用量、pH值和无机阴离子对光降解的影响。通过自由基猝灭实验证实了过氧单硫酸盐的活化机理，表明硫酸盐自由基对亚甲基蓝的去除起主导作用。

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Synthesis of Bi2MoO6 and Activating Peroxymonosulfate to Enhance Photocatalytic Activity under Visible Light Irradiation

Bi2MoO6 nanoflakes are synthesized via a normal hydrothermal method. Bi2MoO6 photocatalysts show lower photocatalytic activity for the degradation of methylene blue under visible light irradiation. In order to further enhance the degradation efficiency, Bi2MoO6 is used to activate the peroxymonosulfate for the degradation of methylene blue under visible light. Bi2MoO6 nanoflakes show excellent degradation efficiency in the Bi2MoO6/Vis/peroxymonosulfate (PMS) system. Moreover, the influences of PMS dosage, pH value, and inorganic anions on photodegradation are evaluated. The mechanism of activating peroxymonosulfate is proved by radical quenching experiment, which reveals that sulfate radicals govern the removal of methylene blue.

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来源期刊

Crystal Research and Technology 化学-晶体学

自引率

6.70%

发文量

121

审稿时长

1.9 months

期刊介绍： The journal Crystal Research and Technology is a pure online Journal (since 2012). Crystal Research and Technology is an international journal examining all aspects of research within experimental, industrial, and theoretical crystallography. The journal covers the relevant aspects of -crystal growth techniques and phenomena (including bulk growth, thin films) -modern crystalline materials (e.g. smart materials, nanocrystals, quasicrystals, liquid crystals) -industrial crystallisation -application of crystals in materials science, electronics, data storage, and optics -experimental, simulation and theoretical studies of the structural properties of crystals -crystallographic computing