| 超薄Ni(OH)2纳米片修饰Zn0.5Cd0.5S纳米颗粒作为二维/零维异质结构光催化剂可见光下光催化制氢 |
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| 引用本文： | 高学友,曾德乾,杨静仁,Ong Wee-Jun,Fujita Toyohisa,何祥龙,刘杰芡,韦悦周. 超薄Ni(OH)2纳米片修饰Zn0.5Cd0.5S纳米颗粒作为二维/零维异质结构光催化剂可见光下光催化制氢[J]. 催化学报, 2021, 42(7): 1137-1146,中插25-中插29. DOI: 10.1016/S1872-2067(20)63728-7 |
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| 作者姓名： | 高学友 曾德乾 杨静仁 Ong Wee-Jun Fujita Toyohisa 何祥龙 刘杰芡 韦悦周 |
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| 作者单位： | 广西大学资源环境与材料学院, 广西有色金属及特色材料加工重点实验室, 广西南宁530004, 中国;上海交通大学环境科学与工程学院, 上海200240, 中国;厦门大学马来西亚分校能源与化学工程学院, 雪兰莪43900, 马来西亚 |
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| 基金项目： | 广西创新驱动发展专项(科技重大专项) (AA17204100, AA18118030);广西有色金属及特色材料加工重点实验室;This work was supported by the Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured Materials, the Scientific Research Startup Foundation of Guangxi University and the Science and Technology Major Project of Guangxi Province |
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| 摘 要： | 设计与制备高效的光解水催化剂是解决能源问题和环境问题的策略之一.硫化镉因其可在可见光引发下分解水制氢而受到广泛关注,然而光腐蚀严重,过电势高,载流子复合快速以及表面反应动力学缓慢等缺点极大地限制了其在光解水反应中的实际应用.本文采用简单液相法将均匀的Zn0.5Cd0.5S纳米颗粒锚定在超薄Ni(OH)2纳米薄片上,构建...
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| 关 键 词： | 氢氧化镍纳米片 Zn0.5Cd0.5S纳米颗粒 助催化剂 二维/零维纳米异质结构 光催化制氢 |
Ultrathin Ni(OH)2 nanosheets decorated with Zn0.5Cd0.5S nanoparticles as 2D/0D heterojunctions for highly enhanced visible light-driven photocatalytic hydrogen evolution |
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| Xueyou Gao,Deqian Zeng,Jingren Yang,Wee-Jun Ong,Toyohisa Fujita,Xianglong He,Jieqian Liu,Yuezhou Wei. Ultrathin Ni(OH)2 nanosheets decorated with Zn0.5Cd0.5S nanoparticles as 2D/0D heterojunctions for highly enhanced visible light-driven photocatalytic hydrogen evolution[J]. Chinese Journal of Catalysis, 2021, 42(7): 1137-1146,中插25-中插29. DOI: 10.1016/S1872-2067(20)63728-7 |
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| Authors: | Xueyou Gao Deqian Zeng Jingren Yang Wee-Jun Ong Toyohisa Fujita Xianglong He Jieqian Liu Yuezhou Wei |
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| Affiliation: | (Guangxi Key Laboratory of Processing for Non‐ferrous Metals and Featured Materials,School of Resources,Environment and Materials,Guangxi University,Nanning 530004,Guangxi,China;School of Environmental Science&Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;School of Energy and Chemical Engineering,Xiamen University Malaysia,Selangor Darul Ehsan 43900,Malaysia) |
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| Abstract: | Designing and fabricating highly efficient photocatalysts for water splitting is a promising strategy to address energy and environmental issues. Cadmium sulfide (CdS) has received significant inter-est as a photocatalyst for visible-light-induced hydrogen (H2) generation. However, the severe pho-tocorrosion, high overpotential, rapid charge recombination, and sluggish surface reaction kinetics drastically hinder its practical application in water splitting. Herein, uniform zinc cadmium sulfide (Zn0.5Cd0.5S) nanoparticles were anchored on ultrathin Ni(OH)2 nanosheets via a facile solu-tion-phase approach to form an intimate two-dimensional (2D)/zero-dimensional (0D) heterojunc-tion. Under visible light irradiation, the 7％Ni(OH)2/Zn0.5Cd0.5S composite exhibited the highest H2 production rate of 6.87 mmol·h-1·g-1 with an apparent quantum yield of 16.8％ at 420 nm, which is almost 43 times higher than that of pristine Zn0.5Cd0.5S and considerably higher than that of the Pt/Zn0.5Cd0.5S photocatalyst. The high photoactivity of the 2D/0D Ni(OH)2/Zn0.5Cd0.5S heterojunction can be ascribed to its unique and robust structure, wherein the ultrathin Ni(OH)2 nanosheets not only provide an excellent platform for the incorporation of Zn0.5Cd0.5S nanoparticles but also serve as an effective cocatalyst to promote photoinduced electron transfer and offer more active sites for photocatalytic H2 generation. This work paves the way toward the development of versatile, low-cost, and highly efficient 2D/0D heterojunction photocatalysts for solar energy conversion. |
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| Keywords: | Nickel hydroxide nanosheets Zn0.5Cd0.5S nanoparticles Cocatalyst 2D/0D nanoheterostructures Photocatalytic H2 generation |
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