Paper Title:
Photochemical Synthesis of Gold Nanostructures in Different Solvents
  Abstract

Gold nanostructures were synthesized at room temperature under irradiation of a fluorescent lamp in mixture of gold seeds smaller than 10 nm, HAuCl4, and poly(vinylpyrrolidone) (PVP). N,N'-dimethylformamide (DMF), water or ethylene glycol (EG) was used as solvent respectively. The products were characterized by transmission electron microscopy, X-ray diffraction and absorption spectra, and the results indicated that under light irradiation at ambient, the reducibility of the three solvents for HAuCl4 ranked as: EG> water> DMF, all far weaker than that of PVP; PVP also prevented the nanostructures from precipitating; gold seeds seemed to impose an autocatalytic effect to facilitate the reduction of HAuCl4; light irradiation was essential for high-yield production of gold particles; the above factors influenced the morphology and size of the gold structures, and led to formation of particles within nano or micron scale in shape of spheroid, rod or plate.

  Info
Periodical
Advanced Materials Research (Volumes 60-61)
Edited by
Xiaohao Wang
Pages
57-62
DOI
10.4028/www.scientific.net/AMR.60-61.57
Citation
B. Guo, Y. J. Tang, X. B. Li, W. D. Wu, J. S. Luo, J. P. Cheng, "Photochemical Synthesis of Gold Nanostructures in Different Solvents", Advanced Materials Research, Vols. 60-61, pp. 57-62, 2009
Online since
January 2009
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Price
$32.00
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