无贵金属 NiS/C3 N4 用于从水中高效光催化析氢。
Noble-metal-free NiS/C3 N4 for efficient photocatalytic hydrogen evolution from water.
机构信息
School of Chemical & Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459 (Singapore), Fax: (+65) 67947553.
出版信息
ChemSusChem. 2013 Dec;6(12):2263-8. doi: 10.1002/cssc.201300647. Epub 2013 Oct 2.
A NiS/C3 N4 photocatalyst containing earth-abundant elements only was constructed by means of a simple hydrothermal method. This photocatalyst shows efficient hydrogen evolution (48.2 μmol h(-1) ) under visible light when using triethanolamine as a sacrificial reagent. The optimal loading of 1.1 wt % NiS on C3 N4 as a cocatalyst can enhance the H2 production by about 250 times compared with the native C3 N4 . The highest apparent quantum efficiency of 1.9 % was recorded at 440 nm.
通过一种简单的水热法构建了一种仅含丰富元素的 NiS/C3 N4 光催化剂。当使用三乙醇胺作为牺牲试剂时，该光催化剂在可见光下显示出高效的析氢性能（48.2 μmol h(-1) ）。作为共催化剂，最佳负载量为 1.1wt%的 NiS 可以使 C3 N4 的 H2 产率提高约 250 倍。在 440nm 时记录到最高的表观量子效率为 1.9%。
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