S and N codoped graphene quantum dots decorated on (001)TiO2 to boost surface reaction for photocatalytic hydrogen production
S and N codoped graphene quantum dots decorated on (001)TiO2 to boost surface reaction for photocatalytic hydrogen production
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DOI：
10.1016/j.rsurfi.2024.100181
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发表时间：
2024-01
影响因子：
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通讯作者：
Mengyao Fu;Yu Shan;Yunqian Zhong;Yijiang Chen;Duan Chao;Guo Heng;Zhou Ying
中科院分区：
文献类型：
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作者：
Mengyao Fu;Yu Shan;Yunqian Zhong;Yijiang Chen;Duan Chao;Guo Heng;Zhou Ying
二氧化钛（TiO 2）复合材料是用于从水制氢的受欢迎的光催化剂。本文报道了一种由S和N共掺杂的石墨烯量子点（SN-GQD）与（001）TiO 2组成的复合材料用于光催化制氢。SN-GQDs/（001）TiO 2复合材料除了具有光吸收和电荷转移等传统优势外，还能通过促进羟基自由基的形成，显著增强表面反应，使其产氢活性提高了40倍。这一工作揭示了GQD促进表面反应对制氢的重要性，有助于研究人员全面了解相关系统。
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)TiO2for photocatalytic hydrogen production. In addition to traditional advantages like light absorption promotion and charge transfer improvement, the as-prepared SN-GQDs/(001)TiO2composite 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.