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材料工程  2019, Vol. 47 Issue (7): 76-83    DOI: 10.11868/j.issn.1001-4381.2018.000659
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
Ag3PO4/ZnO@碳球三元异质结的合成及可见光催化性能
赵晓华1,2, 魏崇1, 苏帅1, 崔佳宝1, 周建国2, 李彩珠1, 娄向东1
1. 河南师范大学 化学化工学院, 河南 新乡 453007;
2. 河南师范大学 环境学院 黄淮水环境与污染防治教育部重点实验室, 河南 新乡 453007
Synthesis and visible light photocatalytic performance of Ag3PO4/ZnO@carbon sphere ternary heterostructure
ZHAO Xiao-hua1,2, WEI Chong1, SU Shuai1, CUI Jia-bao1, ZHOU Jian-guo2, LI Cai-zhu1, LOU Xiang-dong1
1. School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, Henan, China;
2. Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control(Ministry of Education), School of Environment, Henan Normal University, Xinxiang 453007, Henan, China
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摘要 以片花状的ZnO@碳球(ZnO@C)为前驱物,采用原位沉淀法使Ag3PO4颗粒生长在其表面形成Ag3PO4/ZnO@碳球(Ag3PO4/ZnO@C)三元复合物。利用XRD,SEM,Raman,UV-Vis DRS及瞬态光电流响应等技术对合成样品进行表征,并测试其可见光催化性能。结果表明:ZnO@C的引入能够显著提高Ag3PO4的光催化性能,其中5%(质量分数) ZnO@C与Ag3PO4的复合物AP-Z-5光催化效果最佳。在5mg/L Fe (NO33牺牲剂存在的情况下,AP-Z-5在20min内能完全降解亚甲基蓝,光催化循环4次后仍保持86%的降解能力。AP-Z-5在Cr (VI)与亚甲基蓝混合废水中对亚甲基蓝依然能保持较高的光催化降解能力。
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赵晓华
魏崇
苏帅
崔佳宝
周建国
李彩珠
娄向东
关键词 Ag3PO4ZnO碳球异质结可见光催化    
Abstract:Using flower-like ZnO@carbon sphere (ZnO@C) as precursor, Ag3PO4/ZnO@carbon sphere (Ag3PO4/ZnO@C) ternary composites were synthesized via an in-situ precipitation method, Ag3PO4 nanoparticles were deposited on the surface of the ZnO@C. The samples were characterized by XRD, SEM, Raman, UV-Vis DRS and transient photocurrent responses. The visible light photocatalytic performance of samples was also investigated. The results show that the photocatalytic performance of Ag3PO4 can be improved by combining with ZnO@C. Among the samples, AP-Z-5(5%(mass fraction) ZnO@C and Ag3PO4) shows the best photocatalytic performance. It can nearly completely degrade methylene blue (MB) after 20min illumination in the presence of 5mg/L Fe(NO3)3, and remain 86% degradation rate after 4 cycles. Additionally, AP-Z-5 can degrade MB very well even in the mixed contaminant solution including Cr(VI) and MB.
Key wordsAg3PO4    ZnO    carbon sphere    heterostructure    visible light photocatalysis
收稿日期: 2018-05-31      出版日期: 2019-07-19
中图分类号:  O643.36  
通讯作者: 娄向东(1964-),男,硕士,教授,主要从事光催化与气敏材料的研究,联系地址:河南省新乡市建设东路46号河南师范大学化学化工学院(453007),chemenglxd@126.com     E-mail: chemenglxd@126.com
引用本文:   
赵晓华, 魏崇, 苏帅, 崔佳宝, 周建国, 李彩珠, 娄向东. Ag3PO4/ZnO@碳球三元异质结的合成及可见光催化性能[J]. 材料工程, 2019, 47(7): 76-83.
ZHAO Xiao-hua, WEI Chong, SU Shuai, CUI Jia-bao, ZHOU Jian-guo, LI Cai-zhu, LOU Xiang-dong. Synthesis and visible light photocatalytic performance of Ag3PO4/ZnO@carbon sphere ternary heterostructure. Journal of Materials Engineering, 2019, 47(7): 76-83.
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http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2018.000659      或      http://jme.biam.ac.cn/CN/Y2019/V47/I7/76
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