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Efficient preparation of silver nanoplates assisted by non-polar solvents

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Abstract.
In the paper, we report an efficient method to prepare high yield (up to 97%) of silver nanoplates.
Synthesis of silver nanoplates was carried out in a binary solvent system of N,N-dimethylformamide
(DMF) and toluene, in which DMF served as the reductant and polyvinylpyrrolidone (PVP) as the
capping agent. By increasing the ratio of toluene to DMF to 7:6, silver nanoplates can be successfully
synthesized; otherwise other shaped nanoparticles would be the major products. The nanoplate sample
was characterized by TEM, HRTEM, SAED, XRD, AFM and UV–visible spectroscopy, proving the high
nanoplate purity of this sample. The influence of toluene content, other solvents, AgNO3 concentration,
preparation temperature and chloride ions was also examined, which suggests that the function of nonpolar
solvents in this system is to enhance the PVP coverage on silver surface and, furthermore, to
facilitate the preferential adsorption of PVP on two (111) facets of silver nanoplates.

Keywords:
Silver nanoplates
Non-polar solvents
Toluene
DMF
Polyvinylpyrrolidone

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Informasi Detail

Judul Seri

Journal of Colloid and Interface Science

No. Panggil

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Penerbit

London : Elsevier Inc.., 2009

Deskripsi Fisik

Journal of Colloid and Interface Science 331 (2009) 384–388

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

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