化工新型材料

化工新型材料 ›› 2022, Vol. 50 ›› Issue (5) : 201-205. DOI: 10.19817/j.cnki.issn1006-3536.2022.05.041

科学研究

花球形Bi₂WO₆的合成及其光催化性能研究

作者信息 +

Synthesis and photocatalytic performance of flower-like microspheres Bi₂WO₆

Huang Chengyuan, Deng Jianmin, Yang Lei, Li Lei, Fan Ximei

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文章历史 +

Received
2021-01-28
Issue Date	Revised Date
2022-06-06	2021-01-28

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摘要

采用简单的水热合成法制备出纳米片自组装的花状微球形Bi₂WO₆光催化剂,并通过X射线衍射、扫描电子显微镜和紫外-可见漫反射等技术对其物相结构、表面形貌、光学特性进行分析表征,探讨了溶剂和反应温度对催化剂形貌的影响,阐述了Bi₂WO₆的生长机理。通过在可见光(氙灯,400W)的照射下,降解罗丹明B(RhB,10mg/L)溶液来评估其光催化性能。结果表明:180℃水溶液反应条件为最佳制备工艺,以氙灯为光源,照射120min对RhB的降解率可达到89.8%。

Abstract

Flower-like microspheres Bi₂WO₆ photocatalyst self-assembled by nanosheets were prepared by simple hydrothermal synthesis method.Through the X-ray diffraction (XRD),scanning electron microscope (SEM) and UV-visible diffuse (UV-Vis DRS) technologies,the phase structure,surface morphology,optical properties of the Bi₂WO₆ were analyzed.The effects of solvent and reaction temperature on the morphology of the catalyst were discussed,and described the growth mechanism of Bi₂WO₆.The photocatalytic performance was evaluated by degrading rhodamine B(RhB,10mg/L) solution under visible light irradiation (xenon lamp,400W).The results showed that the best preparation process was water solution reaction at 180℃,and the degradation rate of RhB reached 89.8% with xenon lamp as the light source for 120 min.

关键词

Bi₂WO₆光催化剂 / 花状微球 / 纳米片 / 水热合成 / 光催化性能

Key words

Bi₂WO₆ photocatalyst / flower-like microsphere / nanosheet / hydrothermal synthesis / photocatalytic performance

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花球形Bi₂WO₆的合成及其光催化性能研究[J]. 化工新型材料, 2022, 50(5): 201-205 DOI:10.19817/j.cnki.issn1006-3536.2022.05.041

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