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材料工程  2020, Vol. 48 Issue (1): 150-155    DOI: 10.11868/j.issn.1001-4381.2018.000091
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
炭吸附共沉淀纳米铁酸钐的制备及其可见光催化性能
李金星, 汪巧仙, 郭贵宝, 刘金彦
内蒙古科技大学 化学与化工学院, 内蒙古 包头 014010
Visible light photocatalytic properties of SmFeO3 powders prepared via carbon adsorption co-precipitation method
LI Jin-xing, WANG Qiao-xian, GUO Gui-bao, LIU Jin-yan
School of Chemistry and Chemical Engineering, Inner Mongolia University of Science & Technology, Baotou 014010, Inner Mongolia, China
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摘要 采用炭吸附共沉淀法制备铁酸钐(SmFeO3)纳米粉体。利用热重分析仪(TG-DTA)、X射线衍射仪(XRD)、紫外-可见分光光度计(UV-Vis)和透射电镜(TEM)等分析方法对样品进行表征。以甲基橙(MO)为目标污染物,镝灯为可见光源,研究SmFeO3纳米粉体的光催化性能。结果表明:炭吸附共沉淀法合成的SmFeO3粉体粒径小,分布均匀,团聚较少;SmFeO3的吸收波长发生红移,且SmFeO3在紫外光、可见光区域的吸收强度增强。炭吸附共沉淀法制得的SmFeO3粉体在60 min内降解率达到82%,是沉淀法所得SmFeO3粉体降解率的2.6倍,光催化效果明显增强。
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李金星
汪巧仙
郭贵宝
刘金彦
关键词 炭吸附铁酸钐可见光光催化    
Abstract:SmFeO3powders were synthesized by carbon adsorption co-precipitation method. The as-prepared samples were characterized by TG-DTA analysis, X-ray diffraction, UV-Vis absorption spectra and transmission electron microscopy, respectively. The photocatalytic activity of SmFeO3 powders was investigated under visible light irradiation of dysprosium lamp with methyl orange (MO) as the target pollutant. The results show that SmFeO3 powders are obtained with less agglomeration, small particle size and uniform distribution due to the addition of carbon black. The absorption wavelength of SmFeO3 shifts toward the long wavelength and the absorption intensity of SmFeO3 enhances in the ultraviolet and visible regions. The degradation rate of SmFeO3 powder prepared by carbon adsorption co-precipitation method reaches 82% within 60 min, which is 2.6 times of samples synthesized by precipitation method. The photocatalytic effects are significantly enhanced.
Key wordscarbon adsorption    SmFeO3    visible-light    photocatalysis
收稿日期: 2018-01-22      出版日期: 2020-01-09
中图分类号:  O643  
基金资助: 
通讯作者: 郭贵宝(1970-),男,教授,博士,研究方向:纳米光催化材料等,联系地址:内蒙古包头市昆都仑区内蒙古科技大学化学与化工学院(014010),E-mail:ggb66733@sohu.com     E-mail: ggb66733@sohu.com
引用本文:   
李金星, 汪巧仙, 郭贵宝, 刘金彦. 炭吸附共沉淀纳米铁酸钐的制备及其可见光催化性能[J]. 材料工程, 2020, 48(1): 150-155.
LI Jin-xing, WANG Qiao-xian, GUO Gui-bao, LIU Jin-yan. Visible light photocatalytic properties of SmFeO3 powders prepared via carbon adsorption co-precipitation method. Journal of Materials Engineering, 2020, 48(1): 150-155.
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http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2018.000091      或      http://jme.biam.ac.cn/CN/Y2020/V48/I1/150
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