A method for preparing star-shaped gold nanoparticles by pH-controlled photoreduction

Abstract

The present invention relates to a method for preparing stellate gold nanoparticles by pH-regulated photoreduction. The method for preparing stellate gold nanoparticles by pH-regulated photoreduction of the present invention uses chloroauric acid as a raw material for synthesizing stellate gold nanoparticles and a pH-regulated synthesis auxiliary solvent of pH 12.0-14.0, and then combines ultraviolet light-induced reduction synthesis technology to prepare stellate gold nanoparticles in a one-step method, without the need to use complex synthesis steps and highly toxic chemical reduction reagents, and is suitable for rapid large-scale preparation. Compared with the prior art, the method for preparing stellate gold nanoparticles of the present invention effectively eliminates the excessive use of toxic and harmful chemical reagents, overcomes the cumbersomeness of existing preparation steps, shortens the time required for synthesizing stellate gold nanoparticles, and greatly simplifies the preparation process and flow.

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