Photocatalytic Degradation and Antibacterial Properties of Fe3+-Doped Alkalized Carbon Nitride

被引:25
作者
Gao, Ying [1 ,2 ,3 ,4 ]
Duan, Jizhou [1 ,3 ,4 ]
Zhai, Xiaofan [1 ,3 ,4 ]
Guan, Fang [1 ,3 ,4 ]
Wang, Xiutong [1 ,3 ,4 ]
Zhang, Jie [1 ,3 ,4 ]
Hou, Baorong [1 ,3 ,4 ]
机构
[1] Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, Qingdao 266071, Peoples R China
[4] Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
基金
中国国家自然科学基金;
关键词
g-C3N4; alkalization; Fe3+-doping; Rhodamine B degradation; antibacterial property; HYDROGEN-PEROXIDE PRODUCTION; ONE-STEP SYNTHESIS; MOLECULAR-OXYGEN; EFFICIENT PHOTOCATALYST; G-C3N4; NANOSHEETS; FENTON REACTION; GRAPHENE OXIDE; POROUS G-C3N4; WATER; COMPOSITES;
D O I
10.3390/nano10091751
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Discovering novel materials and improving the properties of existing materials are the main goals in the field of photocatalysis to increase the potential application of the materials. In this paper, a modified graphitic carbon nitride (g-C3N4) photocatalyst named Fe3+-doped alkalized carbon nitride, which couples the photocatalytic reaction with the Fenton reaction, is introduced to demonstrate its Rhodamine B (RhB) degradation and antibacterial properties. Under visible-light irradiation, the degradation rate of RhB was 99.9% after 200 min, while the antibacterial rates ofPseudomonas aeruginosa(P. aeruginosa),Escherichia coli(E. coli), andStaphylococcus aureus(S. aureus) after 300 min were 99.9986%, 99.9974%, and 99.9876%, respectively. Moreover, the repetitive experiments of RhB degradation demonstrate that the proposed photocatalysts have excellent stability and reusability. The active free radical trapping experiments reveal that the superoxide radical (center dot O-2(-)) is the dominant reactive oxygen species. In addition, the Fenton reaction is introduced into the photocatalytic system due to the doping of Fe3+, and the hydroxyl radical (center dot OH) produced from the Fenton reaction further enhances the photocatalytic performance. The remarkable improvement in photocatalytic performance of the proposed photocatalyst can be attributed to its broader UV-visible absorption characteristic and the occurrence of the Fenton reaction.
引用
收藏
页码:1 / 17
页数:17
相关论文
共 69 条
[1]   Polymeric Photocatalysts Based on Graphitic Carbon Nitride [J].
Cao, Shaowen ;
Low, Jingxiang ;
Yu, Jiaguo ;
Jaroniec, Mietek .
ADVANCED MATERIALS, 2015, 27 (13) :2150-2176
[2]   Synthesis and photocatalytic application of visible-light active β-Fe2O3/g-C3N4 hybrid nanocomposites [J].
Christoforidis, Konstantinos C. ;
Montini, Tiziano ;
Bontempi, Elza ;
Zafeiratos, Spyridon ;
Delgado Jaen, Juan Jose ;
Fornasiero, Paolo .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2016, 187 :171-180
[3]   Sonication assisted preparation of graphene oxide/graphitic-C3N4 nanosheet hybrid with reinforced photocurrent for photocatalyst applications [J].
Dai, Kai ;
Lu, Luhua ;
Liu, Qi ;
Zhu, Guangping ;
Wei, Xiaoqin ;
Bai, Jin ;
Xuan, Lingling ;
Wang, Heng .
DALTON TRANSACTIONS, 2014, 43 (17) :6295-6299
[4]   Facile synthesis of porous graphene-like carbon nitride (C6N9H3) with excellent photocatalytic activity for NO removal [J].
Dong, Guohui ;
Ho, Wingkei ;
Li, Yuhan ;
Zhang, Lizhi .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2015, 174 :477-485
[5]   Enhanced photocatalytic activities of g-C3N4 with large specific surface area via a facile one-step synthesis process [J].
Feng, Deqiang ;
Cheng, Yahui ;
He, Jie ;
Zheng, Lingcheng ;
Shao, Dawei ;
Wang, Weichao ;
Wang, Weihua ;
Lu, Feng ;
Dong, Hong ;
Liu, Hui ;
Zheng, Rongkun ;
Liu, Hui .
CARBON, 2017, 125 :454-463
[6]   Towards efficient solar hydrogen production by intercalated carbon nitride photocatalyst [J].
Gao, Honglin ;
Yan, Shicheng ;
Wang, Jiajia ;
Huang, Yu An ;
Wang, Peng ;
Li, Zhaosheng ;
Zou, Zhigang .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2013, 15 (41) :18077-18084
[7]   A Facile One-Step Synthesis of Fe-Doped g-C3N4 Nanosheets and Their Improved Visible-Light Photocatalytic Performance [J].
Gao, Jingtian ;
Wang, Yun ;
Zhou, Shijian ;
Lin, Wei ;
Kong, Yan .
CHEMCATCHEM, 2017, 9 (09) :1708-1715
[8]   Visible-light-induced WO3/g-C3N4 composites with enhanced photocatalytic activity [J].
Huang, Liying ;
Xu, Hui ;
Li, Yeping ;
Li, Huaming ;
Cheng, Xiaonong ;
Xia, Jixiang ;
Xu, Yuanguo ;
Cai, Guobin .
DALTON TRANSACTIONS, 2013, 42 (24) :8606-8616
[9]   Photocatalytic production of hydrogen peroxide from water and dioxygen using cyano-bridged polynuclear transition metal complexes as water oxidation catalysts [J].
Isaka, Yusuke ;
Oyama, Kohei ;
Yamada, Yusuke ;
Suenobu, Tomoyoshi ;
Fukuzumi, Shunichi .
CATALYSIS SCIENCE & TECHNOLOGY, 2016, 6 (03) :681-684
[10]   Detection of active oxidative species in TiO2 photocatalysis using the fluorescence technique [J].
Ishibashi, K ;
Fujishima, A ;
Watanabe, T ;
Hashimoto, K .
ELECTROCHEMISTRY COMMUNICATIONS, 2000, 2 (03) :207-210