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材料工程  2020, Vol. 48 Issue (2): 38-45    DOI: 10.11868/j.issn.1001-4381.2018.000892
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
改进溶液燃烧法制备Fe3+掺杂Bi24O31Cl10及其光催化性能的研究
余萍1, 刘施羽1, 王敏2, 付蕊1
1. 沈阳理工大学 环境与化学工程学院, 沈阳 110159;
2. 东北大学 机械工程与自动化学院, 沈阳 110819
Preparation of Fe3+ doped Bi24O31Cl10 by modified solution combustion method and its photocatalytic properties
YU Ping1, LIU Shi-yu1, WANG Min2, FU Rui1
1. School of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang 110159, China;
2. School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China
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摘要 采用改进溶液燃烧法,以硝酸铋、柠檬酸、氯化铵和硝酸铁为原材料制备Fe-Bi24O31Cl10光催化物质,并通过在可见光下降解RhB评价Fe3+掺杂对其光催化性能的影响。采用XRD,XPS,UV-vis,SEM,HTEM,FT-IR等表征手段研究了不同Fe3+掺杂量对Bi24O31Cl10的物相、元素价态、光吸收性能、微观形貌以及颗粒分布、晶面间距、化学结构组成等的影响。结果表明:掺杂Fe3+未改变Bi24O31Cl10的物相,片状形貌,但其片状大小明显变小且厚度变薄,光吸收性能增强,光生电子-空穴复合率下降,与纯Bi24O31Cl10相比,Fe3+掺杂能显著提高Bi24O31Cl10的光催化活性,当Fe3+掺杂量为0.5%(摩尔分数)时,对Bi24O31Cl10的光催化性能促进最高,在可见光下光照50 min,对RhB的脱色率可达75%,较纯Bi24O31Cl10提高了44%。
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余萍
刘施羽
王敏
付蕊
关键词 氯氧化铋改进溶液燃烧法Fe3+掺杂RhB光催化    
Abstract:Fe-Bi24O31Cl10 photocatalytic materials were prepared by modified solution combustion method using bismuth nitrate, citric acid, ammonium chloride and ferric nitrate as raw materials. The influence of Fe3+ doping on its photocatalytic performance was evaluated by degrading rhodamine B in visible light.XRD,XPS,UV-vis, SEM,HTEM and FT-IR were used to study the effects of different Fe3+ doping amount on the phase, elemental valence, optical absorption performance, microscopic morphology and particle distribution, crystal surface spacing and chemical structure composition of Bi24O31Cl10.The results show that doped Fe3+ does not change the phase and morphology of Bi24O31Cl10, but its sheet size is obviously smaller, its thickness is thinner, its optical absorption property is enhanced, and the photoelectron hole recombination ratio is decreased. Compared with pure Bi24O31Cl10, Fe3+ doping can significantly improve the photocatalytic activity of Bi24O31Cl10.The photocatalytic activity of Bi24O31Cl10 is the highest when the doping amount of Fe3+ is 0.5% (mole fraction), and the decolorization rate of RhB is 75% when exposed to visible light for 50 min, which is 44% higher than that of pure Bi24O31Cl10.
Key wordsBi24O31Cl10    modified solution combustion method    Fe3+ doping    RhB    photocatalysis
收稿日期: 2018-07-23      出版日期: 2020-03-03
中图分类号:  O643.3  
通讯作者: 余萍(1963-),女,教授,研究方向:光催化材料及环境监测,联系地址:辽宁省沈阳市浑南区南屏中路6号沈阳理工大学环境与化学工程学院(110159),E-mail:yuping6587@sina.com     E-mail: yuping6587@sina.com
引用本文:   
余萍, 刘施羽, 王敏, 付蕊. 改进溶液燃烧法制备Fe3+掺杂Bi24O31Cl10及其光催化性能的研究[J]. 材料工程, 2020, 48(2): 38-45.
YU Ping, LIU Shi-yu, WANG Min, FU Rui. Preparation of Fe3+ doped Bi24O31Cl10 by modified solution combustion method and its photocatalytic properties. Journal of Materials Engineering, 2020, 48(2): 38-45.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2018.000892      或      http://jme.biam.ac.cn/CN/Y2020/V48/I2/38
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