Construction of heterostructured g-C3N4@TiATA/Pt composites for efficacious photocatalytic hydrogen evolution

被引：36

作者：

Gao, Ziqian ^{[1
]}

Wang, Longlong ^{[1
]}

Wang, Lei ^{[1
]}

Huang, Jingwei ^{[1
]}

She, Houde ^{[1
]}

Wang, Qizhao ^{[1
,2
]}

机构：

[1] Northwest Normal Univ, Coll Chem & Chem Engn, Res Ctr Gansu Mil & Civilian Integrat Adv Struct, Lanzhou 730070, Gansu, Peoples R China

[2] Harbin Normal Univ, Sch Phys & Elect Engn, Key Lab Photon & Elect Bandgap Mat, Minist Educ, Harbin 150025, Heilongjiang, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2019年 / 44卷 / 45期

基金：

中国国家自然科学基金;

关键词：

G-C3N4; TiATA; Heterostructure; Photocatalysis; Hydrogen production; CARBON NITRIDE SEMICONDUCTORS; G-C3N4; NANOSHEETS; H-2; EVOLUTION; ORGANIC FRAMEWORKS; Z-SCHEME; WATER; PERFORMANCE; BLACK; MOFS; COCATALYST;

D O I：

10.1016/j.ijhydene.2019.07.211

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：

Construction of heterostructured photocatalysts is a feasible method for improving hydrogen production from water splitting because of its good charge transport efficiency. Herein, we coupled the Ti-MOFs (TiATA) with metal-free graphitic carbon nitride (g-C3N4) to synthesize composites, g-C3N4@TiATA, in which a heterostructure was formed between g-C3N4 and TiATA. The establishment of heterojunctions not only broadens the light absorption range of g-C3N4@TiATA (490 nm) by contrast with g-C3N4 (456 nm), but also greatly accelerates charge migration. Photocatalytic studies present that the construction of heterostructure steering the charges flow from g-C3N4 to TiATA and then delivery to the cocatalyst of Pt nanoparticles, exhibiting an impressively photocatalytic hydrogen production rate (265.8 mu mol.h(-1)) in assistance of 300 W Xenon lamp, which is about 3.4 times as much as g-C3N4/Pt. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：24407 / 24417

页数：11

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