文献类型：期刊文献

英文题名：g-C3N4/CoAl-LDH 2D/2D hybrid heterojunction for boosting photocatalytic hydrogen evolution

作者：Zhang, Jungang[1,2];Zhu, Qiaohong[1,2];Wang, Lingzhi[1,2];Nasir, Muhammad[3];Cho, So-Hye[4];Zhang, Jinlong[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Frontiers Sci Ctr Materiobiol & Dynam Chem, Key Lab Adv Mat,Feringa Nobel Prize Scientist Joi, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Frontiers Sci Ctr Materiobiol & Dynam Chem, Feringa Nobel Prize Scientist Joint Res Ctr,Joint, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]COMSATS Univ Islamabad, Interdisciplinary Res Ctr Biomed Mat IRCBM, Lahore Campus,Def Rd,Off Raiwind Rd, Lahore, Pakistan;[4]Korea Inst Sci & Technol, Mat Architecturing Res Centrer, Hwarang Ro 14 Gil 5, Seoul 02792, South Korea

年份：2020

卷号：45

期号：41

起止页码：21331

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;EI(收录号：20202508849296);WOS:【SCI-EXPANDED(收录号:WOS:000558598300053)】；

基金：This work was supported by National Natural Science Foundation of China (5171101651, 21811540394, 21972040), and Science and Technology Commission of Shanghai Municipality (17520711500). This Project was supported by Shanghai Municipal Science and Technology Major Project (Grant No.2018SHZDZX03) and the Programme of Introducing Talents of Discipline to Universities (B20031, B16017).

语种：英文

外文关键词：g-C3N4 nanosheets; CoAl layered Double hydroxide; 2D/2D heterojunction; Photocatalytic hydrogen evolution

摘要：In this work, a 2D/2D heterojunction composed of CoAl layered double hydroxide (LDH) and graphitic carbon nitride nanosheets (CNNS) was designed and fabricated for boosting photocatalytic hydrogen generation. The as-prepared 20 mol% CoAl-LDH/CNNS exhibited a remarkable photocatalytic hydrogen evolution rate of 680.13 mu mol h(-1)g(-1), which was 21 times higher than that of pure CoAl-LDH (32.91 mu mol h(-1)g(-1)). The enhanced activity could be mainly attributed to its unique structure and high surface area. Distinct from ordinary heterojunction photocatalysts, two-dimensional (2D) heterojunctions with abundant 2D coupling interfaces and strong interfacial interaction could efficiently suppress the recombination of photo-induced charge carriers and shorten charge transmission distance. Particularly, compared with other concentrations, the increased surface area (138.70 m(2) g(-1)) of 20 mol% CoAl-LDH/CNNS, which is 3.94 times of pure CNNS (35.48 m(2)g(-1)) is more favorable for enhanced photocatalytic activity. Increasing the surface area of sheet-on-sheet heterostructure is an effective and novel strategy to facilitate the photocatalytic hydrogen evolution from water splitting. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.