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吉林化工学院学报, 2021, 38(11): 71-79     https://doi.org/10.16039/j.cnki.cn22-1249.2021.11.015
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新型铈掺杂氧化铋复合催化材料制备及其光催化性能研究
包海峰,欧阳文璟,严雨阳,郑雨莹
吉林化工学院 资源与环境工程学院,吉林  吉林  132022
Research on Preparation and Photocatalytic performance of novel Ce-doped Bismuth Oxide Composite Catalytic Material
BAO Haifeng,OUYANG WenJing ,YAN YuYang, ZHENG YuYing
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摘要 

基于静电纺丝技术将金属Ce掺杂到Bi2O3中,研究制备出了光催化活性增强的新型一维线性复合催化剂,并通过XRD、SEM、TEM、UV vis-DRS表征与分析,研究了不同掺杂比例对Bi2O3改性的影响,并将自制的光催化剂应用于液相中光降解甲基橙染料有机物,以甲基橙为目标降解物,研究结果表明,金属Ce成功地掺杂到Bi2O3中替换了部分Bi的晶格位,其中掺杂比例为0.25时获得了最佳的可见光催化活性,其吸收边红移最大,增禁带宽度为2.22 eV,可见光照射下90min对MO催化降解率达到98.81%,光降解过程符合一级动学过程,光催化剂可见光催化降解有机污染物性能优良。研究结果为新型铈掺杂氧化铋复合催化材料在光催化领域内处理难生物降解污染物提供理论依据和技术支持。

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包海峰
欧阳文璟
严雨阳
郑雨莹
关键词:  光催化  可见光  掺杂  静电纺丝  甲基橙染料     
Abstract: 

The metal Ce was doped into Bi2O3 Based on the electrospinning technology, and a novel linear composite catalyst with enhanced photocatalytic activity was prepared. The effect of different doping ratio on the modification of Bi2O3 was studied by XRD, SEM, TEM and UV vis-DRS characterization and analysis. And the home-made photocatalyst was applied to treat dye wastewater in the liquid phase, with degradation of methyl orange as the goal, the research results show that metal Ce successfully doped into the Bi2O3 replaced the part of the Bi lattice, the doping ratio of 0.25 possess best visible light catalytic activity, the absorption edge redshift is the largest, and the band gap width is 2.22eV, The catalytic degradation rate of MO under visible light irradiation reaches 98.81% in 90 minutes. The photodegradation process conforms to the first-order kinetic process, and the photocatalyst property is stable.The research results provide basis and support for the modification and development of Bi2O3, the development of new composite photocatalytic materials, and the photodegradation of organic pollutants with poor biodegradability in the water treatment field.

Key words:  photocatalysis    visible light    doping    electrospinning    Methyl Orange dye
               出版日期:  2021-11-25      发布日期:  2021-11-25      整期出版日期:  2021-11-25
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引用本文:    
包海峰, 欧阳文璟, 严雨阳, 郑雨莹. 新型铈掺杂氧化铋复合催化材料制备及其光催化性能研究 [J]. 吉林化工学院学报, 2021, 38(11): 71-79.
BAO Haifeng, OUYANG WenJing , YAN YuYang, ZHENG YuYing. Research on Preparation and Photocatalytic performance of novel Ce-doped Bismuth Oxide Composite Catalytic Material . Journal of Jilin Institute of Chemical Technology, 2021, 38(11): 71-79.
链接本文:  
https://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2021.11.015  或          https://xuebao.jlict.edu.cn/CN/Y2021/V38/I11/71
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