Cucurbit[7]uril as a Tool in the Green Synthesis of Gold Nanoparticles |
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| Authors: | Dr Thathan Premkumar Prof Dr Kurt E Geckeler |
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| Institution: | 1. Department of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), 1 Oryong‐dong, Buk‐gu, Gwangju 500‐712 (South Korea), Fax: (+82)?62‐970‐2338;2. Department of Nanobio Materials and Electronics, World‐Class University (WCU), 1 Oryong‐dong, Buk‐gu, Gwangju 500‐712 (South Korea) |
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| Abstract: | A simple, green, one‐pot synthesis of gold nanoparticles was achieved through the reaction of an aqueous mixture of potassium tetrachloroaurate(III) and the macrocycle cucurbit7]uril in the presence of sodium hydroxide at room temperature without introducing any kind of traditional reducing agents and/or external energy. The as‐prepared gold nanoparticles showed catalytic activity for the reduction reaction of 4‐nitrophenol in the presence of NaBH4, which has been established by visual inspection and UV/Vis spectroscopy. This report is the first for the preparation of gold nanoparticles using cucurbit7]uril in aqueous media through chemical reduction without employing conventional reducing agents and/or external energy. |
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| Keywords: | catalyst gold macrocycles nanoparticles transmission electron microscopy |
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