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- W4313144446 abstract "Gold nanoclusters have recently emerged a new class of functional material whose unique intermediate properties between bulk nanoparticles and single molecule. In this study, we describe a photochemical route for the preparation of gold nanoclusters (AuNCs) with glutathione (GSH) as a ligand. The GSH stabilized AuNCs (GSH-AuNCs) display molecule-like transition in their UV-V is absorbance and an intense orange emission at 685 nm under the excitation wavelength of 405 nm. The quantum yield of the nanoclusters was about 2.5% calibrated by rhodamine 6G. The catalytic activity of GSH-AuNCs was explored on reduction reaction of 4-nitrophenol to 4-aminophenol. The results showed a non-pseudo-first-order kinetics with 3 values of the normalized rate constant (i.e. 2.14 × 10−2 s−1, 5.08 × 10−3 s−1 and 9.17 × 10−3 s−1 during the reaction) and negligible reaction induction time. This finding implies different reaction pathways compared to those catalyzed with glutathione protected Au nanoparticles." @default.
- W4313144446 created "2023-01-06" @default.
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- W4313144446 date "2022-01-01" @default.
- W4313144446 modified "2023-09-25" @default.
- W4313144446 title "Photochemical synthesis of luminescent gold nanoclusters for catalytic reduction of 4-nitrophenol" @default.
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- W4313144446 doi "https://doi.org/10.1063/5.0106549" @default.
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