Abstract
AbstractChitosan‐stabilized gold nanoparticles (Cs/Au) film was prepared by casting strategy without a need for reducing and/or stabilizing agents. The shape, size, and crystalline phase were studied using UV‐visible (UV‐vis) spectroscopy, transmission electron microscopy (TEM), and X‐ray diffraction (XRD). The nature of the interaction between the Cs and Au nanoparticles was studied using the Fourier transformer infrared (FTIR) spectroscopy. The as‐prepared Cs/Au nanocomposite film showed high activity in the catalytic reduction of 4‐nitrophenol (4‐NP) to 4‐aminophenol (4‐AP) in the presence of an excess amount of NaBH4. Furthermore, the Cs/Au film is easily separable, as well as remains active after reused for 3 times. The Cs/Au nanocomposite film could be a promising candidate for various catalytic reactions.
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