Montmorillonite-hybridized g-C3N4 composite modified by NiCoP cocatalyst for efficient visible-light-driven photocatalytic hydrogen evolution by dye-sensitization | |
Qi Yinhong1; Wang Lei1; Wang WB (王文波)2; Xu Jixiang1 | |
刊名 | International Journal of Hydrogen Energy |
2019-02 | |
卷号 | 44期号:8页码:4114-4122 |
关键词 | G-c3n4 Montmorillonite Nicop Photocatalysis H2 Production |
DOI | 10.1016/j.ijhydene.2018.12.167 |
英文摘要 | The photocatalytic hydrogen evolution performance of g-C3N4 was enhanced via the hybridization with montmorillonite (MMT) and using NiCoP as cocatalyst. The highest hydrogen-evolution rate from water splitting under visible-light irradiation observed over MMT/g-C3N4/15%NiCoP was 12.50 mmol g−1 h−1 under 1.0 mmol L−1 of Eosin Y-sensitization at pH of 11, which was ∼26.0 and 1.6 times higher than that of MMT/g-C3N4 (0.48 mmol g−1 h−1) and g-C3N4/15%NiCoP (7.69 mmol g−1 h−1). The apparent quantum yield at 420 nm reached 40.3%. The remarkably improved photocatalytic activity can be ascribed to the increased dispersion of g-C3N4 layers, staggered conduction band potentials between g-C3N4 and NiCoP, as well as the electrostatic repulsion originated from negatively charged MMT. This work demonstrates that MMT can be an outstanding support for the deposition of catalytically active components for photocatalytic hydrogen production. |
URL标识 | 查看原文 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/24967] |
专题 | 兰州化学物理研究所_甘肃省黏土矿物应用重点实验室 |
通讯作者 | Wang Lei; Xu Jixiang |
作者单位 | 1.Key Laboratory of Eco-Chemical Engineering, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, China 2.Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China |
推荐引用方式 GB/T 7714 | Qi Yinhong,Wang Lei,Wang WB ,et al. Montmorillonite-hybridized g-C3N4 composite modified by NiCoP cocatalyst for efficient visible-light-driven photocatalytic hydrogen evolution by dye-sensitization[J]. International Journal of Hydrogen Energy,2019,44(8):4114-4122. |
APA | Qi Yinhong,Wang Lei,Wang WB ,&Xu Jixiang.(2019).Montmorillonite-hybridized g-C3N4 composite modified by NiCoP cocatalyst for efficient visible-light-driven photocatalytic hydrogen evolution by dye-sensitization.International Journal of Hydrogen Energy,44(8),4114-4122. |
MLA | Qi Yinhong,et al."Montmorillonite-hybridized g-C3N4 composite modified by NiCoP cocatalyst for efficient visible-light-driven photocatalytic hydrogen evolution by dye-sensitization".International Journal of Hydrogen Energy 44.8(2019):4114-4122. |
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