Fabrication of Highly Efficient Nanogold Membrane Catalysts Utilizing Ultrathin Gold Nanowires in the Presence of Thiourea
writer：Yulu Ye; Jiahang Zhou; Minqiang Xia; Yunbo Li
keywords：Catalysts Catalytic reactions Membranes Metal nanoparticles Solution chemistry
source：期刊
specific source：J. Phys. Chem. C 2025, 129, 8, 4077–4085
Issue time：2025年
J. Phys. Chem. C 2025, 129, 8, 4077–4085
Membrane catalysts have garnered considerable attention in recent years
owing to their outstanding stability, high recyclability, environmental
compatibility, and convenience. Herein, nanogold membrane catalysts have
been successfully fabricated with ultrathin gold nanowires in the
presence of thiourea by a vacuum filtration deposition method aimed at
facilitating charge transport and enhancing the catalytic performance.
By maintaining the thiourea treatment concentration at 500 μg/mL, the
catalytic time of the nanogold membrane remained below 1.0 min for
2-nitrophenol, specifically at 15 s. The 500 μg/mL thiourea-treated
nanogold membranes are also capable of rapidly catalyzing the reduction
of 4-nitrophenol, methylene blue, and methyl orange, causing their
respective UV characteristic peaks to disappear expeditiously within 20
s. Overall, this novel method offers a simple and convenient approach to
obtaining nanogold membrane catalysts, holding great potential promise
for applications in materials, catalysts, and environment fields.
https://pubs.acs.org/doi/10.1021/acs.jpcc.4c07999