Carbon quantum dots modified BiOBr microspheres with enhanced visible light photocatalytic performance

被引：34
作者：
Liang, Zhiyu [1 ]
Yang, Jun [1 ]
Zhou, Chuxin [1 ]
Mo, Qiaofei [1 ]
Zhang, Yuanming [1 ]
机构：
[1] Jinan Univ, Dept Chem, Guangzhou 510632, Guangdong, Peoples R China
来源：
INORGANIC CHEMISTRY COMMUNICATIONS | 2018年 / 90卷
基金：
中国国家自然科学基金;
关键词：
Carbon quantum dots; BiOBr; Visible light; Photocatalysis; Rhodamine B; Ciprofloxacin; NANOSTRUCTURES; SEPARATION; CONVERSION; NANOSHEETS; ACID;
D O I：
10.1016/j.inoche.2018.02.013
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Carbon quantum dots (CQDs) modified BiOBr (CQDs/BiOBr) microspheres were successfully prepared via a poly-vinyl pyrrolidone (PVP) assisted hydrothermal method. The obtained CQDs/BiOBr photocatalysts exhibited much higher photocatalytic activity than bare BiOBr and commercial Degussa P25 in photo-degradation of rhodamine B (RhB) and antibiotic agent ciprofloxacin (CIP) under visible light irradiation. The experimental results indicate that the modification of CQDs can effectively enhance the concentration and the transfer rate of the photogenerated carriers, which is mainly attributed to the superior electron transfer ability and enhanced light harvesting. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：97 / 100
页数：4
相关论文
共 32 条
[1]   Fabrication of novel p-n heterojunction BiOI/La2Ti2O7 composite photocatalysts for enhanced photocatalytic performance under visible light irradiation [J].
Ao, Yanhui ;
Wang, Kedan ;
Wang, Peifang ;
Wang, Chao ;
Hou, Jun .
DALTON TRANSACTIONS, 2016, 45 (19) :7986-7997
[2]   Bismuth compounds and preparations with biological or medicinal relevance [J].
Briand, GG ;
Burford, N .
CHEMICAL REVIEWS, 1999, 99 (09) :2601-2657
[3]   Enhanced Photocatalytic Activity of the Carbon Quantum Dot-Modified BiOI Microsphere [J].
Chen, Yuan ;
Lu, Qiuju ;
Yan, Xuelian ;
Mo, Qionghua ;
Chen, Yun ;
Liu, Bitao ;
Teng, Liumei ;
Xiao, Wei ;
Ge, Liangsheng ;
Wang, Qinyi .
NANOSCALE RESEARCH LETTERS, 2016, 11 :1-7
[4]   Synthesis of oxygen deficient BiOI for photocatalytic degradation of methyl orange [J].
Chen, Zhizhong ;
Liao, Jianxiang ;
Chen, Yuxin ;
Zhang, Jingcheng ;
Fan, Wenjie ;
Huang, Yongchao .
INORGANIC CHEMISTRY COMMUNICATIONS, 2016, 74 :39-41
[5]   Engineering BiOX (X = Cl, Br, I) nanostructures for highly efficient photocatalytic applications [J].
Cheng, Hefeng ;
Huang, Baibiao ;
Dai, Ying .
NANOSCALE, 2014, 6 (04) :2009-2026
[6]   Nitrogen-Doped Carbon Quantum Dots/BiOBr Ultrathin Nanosheets: In Situ Strong Coupling and Improved Molecular Oxygen Activation Ability under Visible Light Irradiation [J].
Di, Jun ;
Xia, Jiexiang ;
Ji, Mengxia ;
Wang, Bin ;
Li, Xiaowei ;
Zhang, Qi ;
Chen, Zhigang ;
Li, Huaming .
ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 2016, 4 (01) :136-146
[7]   Advanced photocatalytic performance of graphene-like BN modified BiOBr flower-like materials for the removal of pollutants and mechanism insight [J].
Di, Jun ;
Xia, Jiexiang ;
Ji, Mengxia ;
Wang, Bin ;
Yin, Sheng ;
Zhang, Qi ;
Chen, Zhigang ;
Li, Huaming .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2016, 183 :254-262
[8]   Carbon Quantum Dots Modified BiOCl Ultrathin Nanosheets with Enhanced Molecular Oxygen Activation Ability for Broad Spectrum Photocatalytic Properties and Mechanism Insight [J].
Di, Jun ;
Xia, Jiexiang ;
Ji, Mengxia ;
Wang, Bin ;
Yin, Sheng ;
Zhang, Qi ;
Chen, Zhigang ;
Li, Huaming .
ACS APPLIED MATERIALS & INTERFACES, 2015, 7 (36) :20111-20123
[9]   A simple method for preparing ZnO foam/carbon quantum dots nanocomposite and their photocatalytic applications [J].
Ding, Delei ;
Lan, Wei ;
Yang, Zhiwei ;
Zhao, Xiaohua ;
Chen, Youxin ;
Wang, Junya ;
Zhang, Xuetao ;
Zhang, Yue ;
Su, Qing ;
Xie, Erqing .
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING, 2016, 47 :25-31
[10]   Enhanced visible light photocatalytic activity and stability of CQDs/BiOBr composites: The upconversion effect of CQDs [J].
Duo, Fangfang ;
Wang, Yawen ;
Fan, Caimei ;
Zhang, Xiaochao ;
Wang, Yunfang .
JOURNAL OF ALLOYS AND COMPOUNDS, 2016, 685 :34-41
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