Microwave-assisted synthesis of high efficient α-Fe2O3/BiOI composites and its performance in photocatalytic degardation of organic pollutants

被引：17
作者：
Niu, Jinfen [1 ,2 ]
Dai, Peixuan [1 ]
Wang, Kai [1 ]
Zhang, Ziqi [1 ]
Zhang, Qian [1 ,2 ]
Yao, Binghua [1 ,2 ]
Yu, Xiaojiao [1 ,2 ]
机构：
[1] Xian Univ Technol, Sch Sci, Xian 710048, Peoples R China
[2] Xian Univ Technol, Res Ctr Micro&Nano Mat, Xian 710048, Peoples R China
来源：
ADVANCED POWDER TECHNOLOGY | 2020年 / 31卷 / 06期
关键词：
BiOI; alpha-Fe2O3; Microwave; Photocatalytic; MO; FACILE SYNTHESIS; DEGRADATION; NANOPARTICLES; NANOSHEETS; HETEROSTRUCTURES; TEMPERATURE;
D O I：
10.1016/j.apt.2020.03.025
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Herein, we prepare novel composites of alpha-Fe2O3/BiOI photocatalysts by one step microwave hydrothermal process. The SEM and TEM characterization results suggest microsphere shaped of BiOI with alpha-Fe2O3 nanoparticles decorated on the surface of BiOI nanosheets. According to the results of UV-vis DRS measurements, alpha-Fe2O3/BiOI exhibited more visible light adsorption. The composite exhibited the highest photoactivity for decomposition of methyl orange (MO) and antibiotics tetracycline (Tc) superior to that of the pure alpha-Fe2O3 and BiOI in the visible light. The degradation rate constant is 2.3 times and 2.0 times higher than that of pure BiOI and alpha-Fe2O3 under the same conditions for degradation MO and Tc respectively. The photodegradation performances of alpha-Fe2O3/BiOI composites were also investigated under different light sources irradiation. Based on the analysis results of radical capture experiment, the enhanced photocatalytic efficiency of alpha-Fe2O3/BiOI photocatalyst can be mainly indentified to be the dominant active species of hole (h(+)) and superoxide radical(O-center dot(2)). (C) 2020 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.
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收藏
页码：2327 / 2336
页数：10
相关论文
共 26 条
[1]   Green synthesis of mesoporous hematite (α-Fe2O3) nanoparticles and their photocatalytic activity [J].
Ahmmad, Bashir ;
Leonard, Kwati ;
Islam, Md Shariful ;
Kurawaki, Junichi ;
Muruganandham, Manickavachagam ;
Ohkubo, Takahiro ;
Kuroda, Yasushige .
ADVANCED POWDER TECHNOLOGY, 2013, 24 (01) :160-167
[2]   Structure switch between α-Fe2O3, γ-Fe2O3 and Fe3O4 during the large scale and low temperature sol-gel synthesis of nearly monodispersed iron oxide nanoparticles [J].
Cui, Hongtao ;
Liu, Yan ;
Ren, Wanzhong .
ADVANCED POWDER TECHNOLOGY, 2013, 24 (01) :93-97
[3]   Synthesis and characterization of N-doped TiO2/ZrO2 visible light photocatalysts [J].
Kim, Ji Young ;
Kim, Chan Soo ;
Chang, Han Kwon ;
Kim, Tae Oh .
ADVANCED POWDER TECHNOLOGY, 2011, 22 (03) :443-448
[4]   Uniform Fe2O3 nanocubes on BiOCl nanosheets and its improved photocatalytic activity [J].
Li, Na ;
Jin, Yujian ;
Hua, Xia ;
Wang, Kai ;
Xu, Jingjing ;
Chen, Mindong ;
Teng, Fei .
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2014, 395 :428-433
[5]   Facile synthesis of Fe2O3 nanoparticles anchored on Bi2MoO6 microflowers with improved visible light photocatalytic activity [J].
Li, Shijie ;
Hu, Shiwei ;
Zhang, Junlei ;
Jiang, Wei ;
Liu, Jianshe .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2017, 497 :93-101
[6]   In-situ microwave-assisted heating synthesis of a high-performance g-C3N4/carbon nanotubes composite photocatalyst with good contact interfaces [J].
Li, Zehao ;
Wang, Weilin ;
Liu, Qiong ;
Zhang, Zhengguo ;
Fang, Xiaoming .
MATERIALS RESEARCH BULLETIN, 2018, 106 :152-161
[7]   Microwave-assisted one-pot synthesis of Ag decorated flower-like ZnO composites photocatalysts for dye degradation and NO removal [J].
Liu, Hairui ;
Liu, Hui ;
Yang, Jien ;
Zhai, Haifa ;
Liu, Xuaguang ;
Jia, Husheng .
CERAMICS INTERNATIONAL, 2019, 45 (16) :20133-20140
[8]   Ag3PO4/CuO composites utilizing the synergistic effect of photocatalysis and Fenton-like catalysis to dispose organic pollutants [J].
Ma, Peiyan ;
Yu, Yong ;
Xie, Jingjing ;
Fu, Zhengyi .
ADVANCED POWDER TECHNOLOGY, 2017, 28 (11) :2797-2804
[9]   A highly efficient visible-light-driven novel p-n junction Fe2O3/BiOI photocatalyst: Surface decoration of BiOI nanosheets with Fe2O3 nanoparticles [J].
Mehraj, Owais ;
Pirzada, Bilal M. ;
Mir, Niyaz A. ;
Khan, Mohammad Zain ;
Sabir, Suhail .
APPLIED SURFACE SCIENCE, 2016, 387 :642-651
[10]   Preparation and characterization of α-Fe2O3 supported clay as a novel photocatalyst for hydrogen evolution [J].
Mekatel, Elhadj ;
Trari, Mohamed ;
Nibou, Djamel ;
Sebai, Ibtissam ;
Amorkrane, Samira .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2019, 44 (21) :10309-10315
123