Green synthesis and characterization of gold nanoparticles obtained by a direct reduction method and their fractal dimension

Razvan State1,2,3, Florica Papa2,3, Gianina Dobrescu2,3, Cornel Munteanu2,3, Irina Atkinson2,3, Ioan Balint2,3, Adrian Volceanov1

1 University Politehnica of Bucharest, 313 Splaiul Independentei, Bucharest, Romania
2 Ilie Murgulescu Institute of Physical Chemistry of the Romanian Academy, 202 Splaiul Independentei, Bucharest, Romania
3 Ilie Murgulescu Institute of Physical Chemistry of the Romanian Academy, 202 Splaiul Independentei, Bucharest, Romania

Abstract


Nanoparticles are very interesting materials due to their properties which can be different than those of the bulk and they have many applications in various domains, like electronic, catalytic or biomedical. Gold is one of the most studied materials and is used in many applications that will have the human being as recipient, that s why gold nanoparticles should be obtained as environmentally friendly as possible. In this work, particles of around 50 nm were obtained in a so called green way by simply adding a solution containing the gold precursor (HAuCl4) in a tannic acid solution. It was found that the amount of gold added in the tannic acid is directly proportional with the size of the obtained nanoparticles.

Keywords


fractal dimension; gold nanoparticles; green synthesis

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