S and N codoped graphene quantum dots decorated on (001)TiO2 to boost surface reaction for photocatalytic hydrogen production

被引：1
作者：
Fu, Mengyao [1 ,2 ]
Yu, Shan [1 ,2 ]
Zhong, Yunqian [3 ]
Chen, Yijiang [2 ]
Duan, Chao [2 ]
Guo, Heng [1 ,2 ]
Zhou, Ying [1 ,2 ]
机构：
[1] Southwest Petr Univ, Natl Key Lab Oil & Gas Reservoir Geol & Exploitat, Chengdu 610500, Peoples R China
[2] Southwest Petr Univ, Sch New Energy & Mat, Chengdu 610500, Peoples R China
[3] Meishan Vocat & Tech Coll, Meishan 620000, Peoples R China
来源：
RESULTS IN SURFACES AND INTERFACES | 2024年 / 14卷
关键词：
Graphene quantum dots; TiO2; Photocatalysis; Hydrogen production; Surface reaction; VISIBLE-LIGHT; HYBRID; ENERGY; SOLAR; WATER; TIO2;
D O I：
10.1016/j.rsurfi.2024.100181
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Titanium dioxide (TiO2) composites are popular photocatalysts for hydrogen production from water. Here we report a composite consisting of S and N co-doped graphene quantum dots (SN-GQDs) with (001)TiO2 for photocatalytic hydrogen production. In addition to traditional advantages like light absorption promotion and charge transfer improvement, the as-prepared SN-GQDs/(001)TiO2 composite could significantly enhance the surface reaction by promotion of the formation of hydroxyl radicals, which results in the increase of the hydrogen production activity by 40 times. This work reveals the importance of surface reaction promotion by GQDs for hydrogen production, which will help researchers understand relevant systems comprehensively.
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页数：6
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