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Tailoring the Electronic Metal–Support Interactions in Supported Atomically Dispersed Gold Catalysts for Efficient Fenton‐like Reaction
Author(s) -
Xie Mingsen,
Dai Fangfang,
Li Jing,
Dang Xinyu,
Guo Jinna,
Lv Weiqiang,
Zhang Zhen,
Lu Xiaoquan
Publication year - 2021
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202103652
Subject(s) - catalysis , metal , rhodamine b , decomposition , materials science , atom (system on chip) , bisphenol a , alloy , degradation (telecommunications) , chemical engineering , nanotechnology , photochemistry , chemistry , photocatalysis , organic chemistry , metallurgy , telecommunications , computer science , epoxy , composite material , embedded system , engineering
The atomically dispersed metal is expected as one of the most promising Fenton‐like catalysts for the degradation of recalcitrant organic pollutants (ROPs) by the strong “electronic metal–support interactions” (EMSIs). Here, we develop an atomically dispersed metal–atom alloy made by guest Au atoms substitute host V atoms in the two‐dimensional VO 2 (B) nanobelt support (Au/VO 2 ) to activate Fenton‐like oxidation for elimination of ROPs. The 2D nanobelt structure enlarges the exposure of atomically Au thus increasing the number of active sites to absorb more S 2 O 8 2− ions. And the EMSIs regulate the charge density in Au atoms to present positive charge Au + , lowering the energy barrier of S 2 O 8 2− decomposition to produce SO 4 .− . The Au/VO 2 catalyst possesses excellent durable and reliable characteristics and exhibits record‐breaking efficiency with TOF as high as 21.42 min −1 , 16.19 min −1 , and 80.89 min −1 for rhodamine, phenol, and bisphenol A degradation, respectively.