期刊
INORGANIC CHEMISTRY COMMUNICATIONS
卷 133, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.inoche.2021.108868
关键词
Green Synthesis; Nephelium Lappaceum; Gold nanoflowers; TEM; FTIR; Catalyst
The bioactive constituents of rambutan peel extract were used to synthesize gold nanoflowers efficiently, demonstrating high catalytic activity and a facile, sustainable synthesis method for the development of valuable products in nanotechnology.
Green methods using discarded fruit and vegetable waste are a safer alternative for the synthesis of metal nanoparticles, due to their simplicity, low cost and ecofriendly nature. In this investigation, the bioactive constituents of Nephelium Lappaceum L. (Rambutan) peel extract were effectively used as reducer to synthesize gold nanoflowers (AuNFs) and attempted to convert fruit waste into a valuable product. A quick and simple synthesis of bluish-purple color AuNFs was observed to occur with a plasmonic resonance band, lambda max around 563 nm. Transmission electron microscopy and dynamic light scattering analysis confirming the formation of clusters of gold nanoparticle similar to flowers/AuNFs with a size of 70-115 nm and each monodispersed nanoparticles has an average size of 11.6 +/- 2.35 nm. Fourier transform infrared spectroscopy confirmed that the AuNFs were capped with hydroxyl (-OH) and carboxyl (-COOH) groups of rambutan peel. In addition, the resulting AuNFs showed catalytic activity for the reduction of 4-nitrophenol to 4-aminophenol (1.9089 x 10-1 min- 1, R2 = 0.969), efficiently. The suggested synthetic method is facile, sustainable, cost-effective and convenient for the development of value-added products in future nanotechnology products.
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