Three-dimension hierarchical heterostructure of CdWO4 microrods decorated with Bi2WO6 nanoplates for high-selectivity photocatalytic benzene hydroxylation to phenol

被引：99
作者：
Chen, Peng [1 ]
Chen, Lang [1 ]
Zeng, Yu [1 ]
Ding, Feng [1 ]
Jiang, Xu [1 ]
Liu, Na [1 ]
Au, Chak-Tong [2 ]
Yin, Shuang-Feng [1 ]
机构：
[1] Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Prov Hunan Key Lab Cost Effect Utilizat Fossil Fu, Changsha 410082, Hunan, Peoples R China
[2] Hunan Inst Engn, Coll Chem & Chem Engn, Xiangtan 411104, Hunan, Peoples R China
来源：
APPLIED CATALYSIS B-ENVIRONMENTAL | 2018年 / 234卷
关键词：
Hierarchical heterostructure; Photocatalysis; Selective hydroxylation; Phenol; Bi2WO6/CdWO4; VISIBLE-LIGHT PHOTOCATALYST; C-H BONDS; CONTROLLABLE SYNTHESIS; BAND GAP; OXIDATION; EFFICIENT; DEGRADATION; COMPOSITES; CONVERSION; HOLLOW;
D O I：
10.1016/j.apcatb.2018.04.028
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
For the first time Bi2WO6/CdWO4 (BCW) hierarchical heterostructure of CdWO4 microrods decorated with uniform Bi2WO6 nanoplates was prepared. Using BCW as photocatalyst and O-2 as oxidant, we achieved satisfactory catalytic activity (benzene conversion 7.3% and selectivity of phenol > 99%) in the hydroxylation of benzene to phenol at room temperature. It was found that the unique hierarchical heterostructure is beneficial for the absorption of visible light and the separation of photoinduced charge carriers. Moreover, we confirm the pivotal role of hydroxyl radicals and propose a plausible mechanism for the hydroxylation reaction.
引用
收藏
页码：311 / 317
页数：7
相关论文
共 43 条
[1]   Controllable synthesis of hollow and porous Ag/BiVO4 composites with enhanced visible-light photocatalytic performance [J].
Chen, Lang ;
Huang, Rui ;
Ma, Ying-Jie ;
Luo, Sheng-Lian ;
Au, Chak-Tong ;
Yin, Shuang-Feng .
RSC ADVANCES, 2013, 3 (46) :24354-24361
[2]   Room-Temperature Synthesis of Flower-Like BiOX (X=Cl, Br, I) Hierarchical Structures and Their Visible-Light Photocatalytic Activity [J].
Chen, Lang ;
Huang, Rui ;
Xiong, Miao ;
Yuan, Qing ;
He, Jie ;
Jia, Jing ;
Yao, Meng-Yuan ;
Luo, Sheng-Lian ;
Au, Chak-Tong ;
Yin, Shuang-Feng .
INORGANIC CHEMISTRY, 2013, 52 (19) :11118-11125
[3]   Porous peanut-like Bi2O3-BiVO4 composites with heterojunctions: one-step synthesis and their photocatalytic properties [J].
Chen, Lang ;
Zhang, Qiang ;
Huang, Rui ;
Yin, Shuang-Feng ;
Luo, Sheng-Lian ;
Au, Chak-Tong .
DALTON TRANSACTIONS, 2012, 41 (31) :9513-9518
[4]   Facile synthesis of BiOCl nano-flowers of narrow band gap and their visible-light-induced photocatalytic property [J].
Chen, Lang ;
Yin, Shuang-Feng ;
Huang, Rui ;
Zhou, Yan ;
Luo, Sheng-Lian ;
Au, Chak-Tong .
CATALYSIS COMMUNICATIONS, 2012, 23 :54-57
[5]   Fe-g-C3N4-Catalyzed Oxidation of Benzene to Phenol Using Hydrogen Peroxide and Visible Light [J].
Chen, Xiufang ;
Zhang, Jinshui ;
Fu, Xianzhi ;
Antonietti, Markus ;
Wang, Xinchen .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (33) :11658-+
[6]   An anion exchange approach to Bi2WO6 hollow microspheres with efficient visible light photocatalytic reduction of CO2 to methanol [J].
Cheng, Hefeng ;
Huang, Baibiao ;
Liu, Yuanyuan ;
Wang, Zeyan ;
Qin, Xiaoyan ;
Zhang, Xiaoyang ;
Dai, Ying .
CHEMICAL COMMUNICATIONS, 2012, 48 (78) :9729-9731
[7]   Ambient Oxidation of Benzene to Phenol by Photocatalysis on Au/Ti0.98V0.02O2: Role of Holes [J].
Devaraji, Perumal ;
Sathu, Naveen K. ;
Gopinath, Chinnakonda S. .
ACS CATALYSIS, 2014, 4 (09) :2844-2853
[8]   Visible-light-induced degradation of rhodamine B by nanosized Bi2WO6 [J].
Fu, HB ;
Pan, CS ;
Yao, WQ ;
Zhu, YF .
JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (47) :22432-22439
[9]   Optical anisotropy and electronic structures of CdMoO4 and CdWO4 crystals:: Polarized reflection measurements, x-ray photoelectron spectroscopy, and electronic structure calculations [J].
Fujita, Masami ;
Itoh, Minoru ;
Katagiri, Tsuyoshi ;
Iri, Daisuke ;
Kitaura, Mamoru ;
Mikhailik, Vitalii B. .
PHYSICAL REVIEW B, 2008, 77 (15)
[10]   Selective photocatalytic reactions with organic photocatalysts [J].
Fukuzumi, Shunichi ;
Ohkubo, Kei .
CHEMICAL SCIENCE, 2013, 4 (02) :561-574
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