Fabrication of Bi2MoO6/ZnO hierarchical heterostructures with enhanced visible-light photocatalytic activity

被引：419

作者：

Zhang, Guping ^{[1
]}

Chen, Dongyun ^{[1
]}

Li, Najun ^{[1
]}

Xu, Qingfeng ^{[1
]}

Li, Hua ^{[1
]}

He, Jinghui ^{[1
]}

Lu, Jianmei ^{[1
]}

机构：

[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, 199 Renai Rd, Suzhou 215123, Peoples R China

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2019年 / 250卷

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Bi2MoO6/ZnO composite; Hierarchical heterojunction; Photocatalytic; Cr(VI) reduction; EFFICIENT CHARGE SEPARATION; METAL-ORGANIC FRAMEWORK; DRIVEN PHOTOCATALYST; HIGH-PERFORMANCE; REDUCTION; NANOSHEETS; CR(VI); HETEROJUNCTIONS; DEGRADATION; PHOTOREDUCTION;

D O I：

10.1016/j.apcatb.2019.03.055

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：

The construction of heterostructures is regarded as an excellent strategy to achieve efficient charge separation and improved photocatalytic activity. Herein, a series of Bi2MoO6/ZnO hierarchical heterostructured photo catalysts were synthesized by a solvothermal method. The morphology of Bi2MoO6 grown on the surface of ZnO nanorods could be controlled by adjusting the experimental conditions. The synthesized samples were characterized by various analytical techniques and their photocatalytic performance was evaluated by photocatalytic reduction of Cr(VI) under visible-light irradiation. Compared with those of pure Bi2MoO6 and ZnO, the Bi2MoO6/ZnO composites showed higher photocatalytic activity towards the reduction of Cr(VI). The enhanced photocatalytic activity was mainly attributed to the formation of a heterojunction between Bi2MoO6 and ZnO, which effectively facilitated the separation and transfer of electrons and holes. In addition, the Bi2MoO6/ZnO photocatalysts maintained good stability after three cycles of Cr(VI) photoreduction. A possible photocatalytic mechanism of the as-synthesized composites was proposed.

引用

页码：313 / 324

页数：12

共 43 条

[1] Construction of heterojunction photoelectrode via atomic layer deposition of Fe2O3 on Bi2WO6 for highly efficient photoelectrochemical sensing and degradation of tetracycline [J].

Adhikari, Sangeeta ;

Selvaraj, Seenivasan ;

Kim, Do-Heyoung .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2019, 244 :11-24

[2] One-pot synthesis of In2S3 nanosheets/graphene composites with enhanced visible-light photocatalytic activity [J].

An, Xiaoqiang ;

Yu, Jimmy C. ;

Wang, Feng ;

Li, Chuanhao ;

Li, Yecheng .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2013, 129 :80-88

[3] Hierarchical Core-Shell Carbon Nanofiber@ZnIn2S4 Composites for Enhanced Hydrogen Evolution Performance [J].

Chen, Yajie ;

Tian, Guohui ;

Ren, Zhiyu ;

Pan, Kai ;

Shi, Yunhan ;

Wang, Jiaqi ;

Fu, Honggang .

ACS APPLIED MATERIALS & INTERFACES, 2014, 6 (16) :13841-13849

[4] UiO-66(Zr) coupled with Bi2MoO6 as photocatalyst for visible-light promoted dye degradation [J].

Ding, Jie ;

Yang, Zhiquan ;

He, Chong ;

Tong, Xiaowen ;

Li, Ying ;

Niu, Xiaojun ;

Zhang, Hongguo .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2017, 497 :126-133

[5] Carbon dots/g-C3N4/ZnO nanocomposite as efficient visible-light driven photocatalyst for tetracycline total degradation [J].

Guo, Feng ;

Shi, Weilong ;

Guan, Weisheng ;

Huang, Hui ;

Liu, Yang .

SEPARATION AND PURIFICATION TECHNOLOGY, 2017, 173 :295-303

[6] Ternary assembly of g-C3N4/graphene oxide sheets /BiFeO3 heterojunction with enhanced photoreduction of Cr(VI) under visible-light irradiation [J].

Hu, Xinjiang ;

Wang, Weixuan ;

Xie, Guangyu ;

Wang, Hui ;

Tan, Xiaofei ;

Jin, Qi ;

Zhou, Daixi ;

Zhao, Yunlin .

CHEMOSPHERE, 2019, 216 :733-741

[7] Metal organic framework g-C3N4/MIL-53(Fe) heterojunctions with enhanced photocatalytic activity for Cr(VI) reduction under visible light [J].

Huang, Wenyuan ;

Liu, Ning ;

Zhang, Xiaodong ;

Wu, Minghong ;

Tang, Liang .

APPLIED SURFACE SCIENCE, 2017, 425 :107-116

[8] ZnO/BiOI Heterostructures: Photoinduced Charge-Transfer Property and Enhanced Visible-Light Photocatalytic Activity [J].

Jiang, Jing ;

Zhang, Xi ;

Sun, Peibei ;

Zhang, Lizhi .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (42) :20555-20564

[9] Efficient charge separation between Bi2MoO6 nanosheets and ZnO nanowires for enhanced photoelectrochemical properties [J].

Jin, Bingjun ;

Jiao, Zhengbo ;

Bi, Yingpu .

JOURNAL OF MATERIALS CHEMISTRY A, 2015, 3 (39) :19702-19705

[10] Enhanced Photoelectrocatalytic Activity of BiOI Nanoplate-Zinc Oxide Nanorod p-n Heterojunction [J].

Kuang, Pan-Yong ;

Ran, Jing-Run ;

Liu, Zhao-Qing ;

Wang, Hong-Juan ;

Li, Nan ;

Su, Yu-Zhi ;

Jin, Yong-Gang ;

Qiao, Shi-Zhang .

CHEMISTRY-A EUROPEAN JOURNAL, 2015, 21 (43) :15360-15368

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