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Characterization of photochemically initiated gold nanoparticles synthesized via incoherent ultraviolet radiation

Chonga, Jia Cherng and Lee, Siew Ling and Bidin, Noriah (2016) Characterization of photochemically initiated gold nanoparticles synthesized via incoherent ultraviolet radiation. Jurnal Teknologi, 78 (3-2). pp. 165-170. ISSN 0127-9696

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Abstract

A modified Turkevich pathway of synthesizing water suspended gold nanoparticles using incoherent ultraviolet radiation as photochemical reaction initiator produced broader absorbance band corresponding to localised surface plasmonresonsnce around 530 nm with average particle size separated into two distinct distributions from 5 nm to 100 nm depending on ultraviolet wavelength. Presence and dynamics of nanoparticle growth was observed with photon correlation spectroscopy where aged colloids produced submicron sized agglomerated particles. Post-synthesis colloidal pH shows gradual degradation of particle stability.

Item Type:Article
Uncontrolled Keywords:Photochemical initiation, Photon correlation spectroscopy
Subjects:Q Science > QC Physics
Divisions:Science
ID Code:71334
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:20 Nov 2017 16:30
Last Modified:20 Nov 2017 16:30

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