科学研究

Sn4+/氯氧化铋花状微球的制备及可见光催化性能

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  • 许昌学院化学化工学院,许昌461000
武小满(1977-),女,博士,副教授,主要从事纳米催化剂的制备和光催化研究,E-mail:xmanwu77@aliyun.com。

收稿日期: 2019-10-22

  修回日期: 2020-11-11

  网络出版日期: 2021-09-07

Preparation and photocatalytic property under visible light of Sn4+/BiOCl microsphere with flower-like

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  • School of Chemistry and Chemical Engineering,Xuchang University,Xuchang 461000

Received date: 2019-10-22

  Revised date: 2020-11-11

  Online published: 2021-09-07

摘要

以Bi(NO3)35H2O为铋源,SnCl45H2O为锡源和部分氯源,乙二醇为溶剂,尿素为沉淀剂,利用溶剂热法原位合成了不同尺寸的Sn4+掺杂BiOCl(简称Sn4+/BiOCl)。对罗丹明B的降解结果表明,当Sn掺杂量为8%,水热温度为110℃,水热时间为3h时制备的BiOCl光催化性能最好。可见光照3h后罗丹明B完全降解。X射线衍射和扫描电镜表征结果显示Sn的掺杂使BiOCl的晶化温度显著降低,Sn4+/BiOCl为片层结构排列较为紧密规整的花状微球,粒径约1~2.5μm。紫外-可见光谱表明掺杂Sn4+明显增强了BiOCl对可见光的光响应性能。

本文引用格式

武小满, 史若男 . Sn4+/氯氧化铋花状微球的制备及可见光催化性能[J]. 化工新型材料, 2021 , 49(8) : 186 -189 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.08.039

Abstract

Using Bi(NO3)35H2O as the source of bismuth,SnCl45H2O as the source of stannum and chlorine,glycol as the solvent and urea as the additive,the Sn4+-doped BiOCl photocatalysts with different sizes were prepared by sol-thermal method.Using Rhodamine B as the degradant,the results showed that the photocatalytic performance of Sn4+/BiOCl was best when the doping amount was 8%,the hydrothermal temperature was 110℃,and the hydrothermal time was 3 h.After irradiated for 3 h under visible light,Rhodamine B was completely degraded.The XRD and SEM characterization results showed that Sn doping significantly reduced the crystallization temperature of BiOCl and the microspheres presented flower-like microspheres with compact and regular lamellar structure,which particle size was about 1~2.5μm.The UV-Vis spectra showed that doping Sn4+ significantly enhanced optical response of BiOCl to visible light.

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