A review on 2D MoS2 cocatalysts in photocatalytic H2 production
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2020年第21期
论文作者：Zizhan Liang Rongchen Shen Yun Hau Ng Peng Zhang Quanjun Xiang Xin Li
摘 要：Owing to their unique physicochemical, optical and electrical properties, two-dimensional（2D） MoS2 cocatalysts have been widely applied in designing and developing highly efficient composite photocatalysts for hydrogen generation under suitable light irradiation. In this review, we first elaborated on the fundamental aspects of 2D MoS2 cocatalysts to include the structural design principles, synthesis strategies, strengths and challenges. Subsequently, we thoroughly highlighted and discussed the modification strategies of 2D MoS2 H2-evolution cocatalysts, including doping heteroatoms（e.g. metals, non-metals,and co-doping）, designing interfacial coupling morphologies, controlling the physical properties（e.g.thickness, size, structural defects or pores）, exposing the reactive facets or edge sites, constructing cocatalyst heterojunctions, engineering the interfacial bonds and confinement effects. In the future, the forefront challenges in understanding and in precise controlling of the active sites at molecular level or atomic level should be carefully studied, while various potential mechanisms of photogenerated-electrons interactions should be proposed. The applications of MoS2 cocatalyst in the overall water splitting are also expected. This review may offer new inspiration for designing and constructing novel and efficient MoS2-based composite photocatalysts for highly efficient photocatalytic hydrogen evolution.
Zizhan Liang1，Rongchen Shen1，Yun Hau Ng2，Peng Zhang3，Quanjun Xiang4，Xin Li1
1. Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture and Rural Affairs, College of Forestry and Landscape Architecture, South China Agricultural University2. School of Energy and Environment, City University of Hong Kong3. State Center for International Cooperation on Designer Low-Carbon & Environmental Materials (CDLCEM), School of Materials Science and Engineering,Zhengzhou University4. State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China
摘 要：Owing to their unique physicochemical, optical and electrical properties, two-dimensional（2D） MoS2 cocatalysts have been widely applied in designing and developing highly efficient composite photocatalysts for hydrogen generation under suitable light irradiation. In this review, we first elaborated on the fundamental aspects of 2D MoS2 cocatalysts to include the structural design principles, synthesis strategies, strengths and challenges. Subsequently, we thoroughly highlighted and discussed the modification strategies of 2D MoS2 H2-evolution cocatalysts, including doping heteroatoms（e.g. metals, non-metals,and co-doping）, designing interfacial coupling morphologies, controlling the physical properties（e.g.thickness, size, structural defects or pores）, exposing the reactive facets or edge sites, constructing cocatalyst heterojunctions, engineering the interfacial bonds and confinement effects. In the future, the forefront challenges in understanding and in precise controlling of the active sites at molecular level or atomic level should be carefully studied, while various potential mechanisms of photogenerated-electrons interactions should be proposed. The applications of MoS2 cocatalyst in the overall water splitting are also expected. This review may offer new inspiration for designing and constructing novel and efficient MoS2-based composite photocatalysts for highly efficient photocatalytic hydrogen evolution.
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