Silver Nanoparticles Preparation Using Antioxidant Propyl Gallate and Its Analytical Application

doi:10.7503/cjcu20120696

Abstract

Abstract:

Silver nanoparticles were synthesized based on the chemical reduction between propyl gallate(PG) and silver nitrate in the presence of cetyltrimethylammonium bromide(CTAB). The experimental conditions, including reaction time, concentration of sodium hydroxide, temperature and concentration ratio of PG to Ag⁺, were investigated. The silver nanoparticles were characterized by scanning electron microscope(SEM), and it showed that the nanoparticles were spherical shape. The reduction of Ag⁺ to silver nanoparticles produced very intense surface plasmon resonance peak of silver nanoparticles. An absorbance band in the range of 400—450 nm was observed by UV-Vis spectrophotometry with a maximum absorbance wavelength of 420 nm. The plasmon absorbance of silver nanoparticles allows the quantitative determination of some antioxidants, such as PG, butylated hydroxytoluene(BHT), butyl hydroxy anisole(BHA) and tertiary butyldroquinone(TBHQ). Their detection limits were 0.0752, 0.1242, 0.0693 and 0.0701 mg/L, respectively; and their corresponding linear ranges were 0.2—1.8, 0.2—3.4, 0.2—3.4 and 0.2—3.0 mg/L, respectively.

Key words: Silver nanoparticles, Propyl gallate, Chemical reduction, Quantitative application

CLC Number:

O656

TrendMD:

WANG Ping, NI Yong-Nian. Silver Nanoparticles Preparation Using Antioxidant Propyl Gallate and Its Analytical Application[J]. Chem. J. Chinese Universities, 2013, 34(4): 837.

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