Bi2MoO6/g-C3N4 of 0D/2D heterostructure as efficient photocatalyst for selective oxidation of aromatic alkanes

被引：69
|
作者：
Ding, Feng [1 ]
Chen, Peng [1 ]
Liu, Fan [1 ]
Chen, Lang [1 ]
Guo, Jun-Kang [1 ]
Shen, Sheng [1 ]
Zhang, Qi [1 ]
Meng, Ling-Hu [1 ]
Au, Chak-Tong [2 ]
Yin, Shuang-Feng [1 ]
机构：
[1] Hunan Univ, Coll Chem & Chem Engn, Prov Hunan Key Lab Cost Effect Utilizat Fossil Fu, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China
[2] Hunan Inst Engn, Coll Chem & Chem Engn, Xiangtan 411104, Hunan, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2019年 / 490卷
基金：
中国国家自然科学基金;
关键词：
Bi2MoO6; OD/2D heterostructures; Selective oxidation; Benzaldehyde; GRAPHITIC CARBON NITRIDE; C-H BONDS; G-C3N4; NANOSHEETS; HYDROGEN EVOLUTION; DEGRADATION; COMPOSITE; ALCOHOLS; HETEROJUNCTION; EXFOLIATION; FABRICATION;
D O I：
10.1016/j.apsusc.2019.06.057
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：
In the production of value-added organics, the design of efficient photocatalysts for the selective oxidation of C-H bonds is crucial. In this work, zero-dimension (OD) Bi2MoO6 quantum dots (QDs), two-dimension (2D) g-C3N4 nanosheets (NSs), and Bi2MoO6/g-C3N4 of OD/2D heterostructure were prepared via a facile two-step process. Anchoring the Bi2MoO6 QDs on g-C3N4 NSs can shorten the charge-migration distance, extend the visible-light absorption range and provide active sites in abundance. The obtained Bi2MoO6/g-C3N4 exhibits excellent photocatalytic activity as well as stability for the selective oxidation of toluene to benzaldehyde using green O-2 as oxidant, achieving a benzaldehyde formation rate of 850.7 mu mol.g(-1).h(-1) under solvent free condition with visible light irradiation.
引用
收藏
页码：102 / 108
页数：7
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