光催化
铂金
催化作用
罗丹明B
制氢
水溶液
可见光谱
光化学
光敏剂
化学
氧化还原
材料科学
无机化学
分解水
有机化学
光电子学
作者
Chunqing Ji,Wenjing Wang,El-Sayed M. El-Sayed,Guoliang Liu,Yanan Si,Kongzhao Su,Zhanfeng Ju,Fan Wu,Daqiang Yuan
标识
DOI:10.1016/j.apcatb.2020.119782
摘要
Abstract Platinum (Pt) complexes have been tremendously exploited as efficient catalysts for producing hydrogen from water due to their high work function and redox potential, yet maximum utilization remains challenging. Herein, we have synthesized and characterized a novel Zr-Bpydc-PtCl2 MOCs material by immobilization a platinum complex in 2,2'-bipyridyl-5,5'-dicarboxylic acid-based metal-organic cages (MOCs) for the first time. In the presence of photosensitizer (Rhodamine B), the functionalized Zr-Bpydc-PtCl2 MOCs exhibits good stability and a high photocatalytic H2 evolution rate (10,466 μmol g−1 h−1) in aqueous solution, which are 6 times of Bpy-PtCl2 and 1.8 times of Bpydc-PtCl2 under visible light irradiation (λ > 420 nm), respectively. Compared with reference experiments, the good performance of Zr-Bpydc-PtCl2 MOCs indicated that integrating catalyst molecules into MOCs is a promising approach for stabilizing the catalytic center and improving the photocatalytic efficiency of H2 production in water.
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