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A Strategy to Boost H 2 Generation Ability of Metal–Organic Frameworks: Inside‐Outside Decoration for the Separation of Electrons and Holes
Author(s) -
Wang Yang,
Ling Lianjie,
Zhang Wei,
Ding Kejian,
Yu Yu,
Duan Wubiao,
Liu Bo
Publication year - 2018
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201702316
Subject(s) - metal organic framework , electron , separation (statistics) , nanotechnology , materials science , chemical engineering , chemical physics , engineering physics , chemistry , physics , computer science , engineering , adsorption , nuclear physics , machine learning
Inhibiting the recombination of electron and holes plays an essential role in photocatalytic process, particularly for metal–organic frameworks (MOFs), which had long been anticipated as high‐efficient photocatalysts. Herein, we introduce a new strategy to make efficient separation of electrons and holes for the MOF‐based photocatalyst, UiO‐66‐NH 2 . At first, encapsulation of Pt nanoparticles (NPs) into UiO‐66‐NH 2 (Pt@U6N) to shorten the electrons transport distance inside of MOF crystals, then using graphene oxide to wrap the external surface of Pt@U6N to facilitate the electrons transfer on the surface. The designed structure was found to possess superior H 2 ‐generation ability compared to only inside or outside decorated samples, highlighting that the enhanced property strongly correlates with the inhibited recombination of electrons and holes by the inside/outside modification strategy. These findings suggest a synergistic effect of Pt NPs and graphene oxide on UiO‐66‐NH 2 and reveal a new modification strategy to enhance the catalytic activity of the photocatalysts.