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Updated: Nov 9, 2025
Synthesis and Catalytic Performance of Gold Intercalated in the Walls of Mesoporous Silica
Published on: July 9, 2015
Tailoring the Electronic Metal-Support Interactions in Supported Atomically Dispersed Gold Catalysts for Efficient
Mingsen Xie1, Fangfang Dai1, Jing Li1
1Tianjin Key Laboratory of Molecular Optoelectronic, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China.
Abstract:
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 VO2 (B) nanobelt support (Au/VO2 ) 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 S2 O8 2- ions. And the EMSIs regulate the charge density in Au atoms to present positive charge Au+ , lowering the energy barrier of S2 O8 2- decomposition to produce SO4 .- . The Au/VO2 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.
