Procedure optimisation for green synthesis of silver nanoparticles by Taguchi method

Micro & nano letters

article

Zahra Aghajani Kalaki¹  Raheleh SafaeiJavan²  Hossein Faraji³ 

[1] Department of Microbiology, Islamic Azad University, Varamin-Pishva Branch;Department of Biochemistry and Biophysics, Islamic Azad University, Varamin-Pishva Branch;Department of Mechanical Engineering, University of Birjand

关键词: optimisation;    silver;    nanoparticles;    Taguchi methods;    nanofabrication;    nanobiotechnology;    visible spectra;    ultraviolet spectra;    Fourier transform infrared spectra;    scanning electron microscopy;    light scattering;    pH;    statistical analysis;    procedure optimisation;    Taguchi method;    green synthesised silver nanoparticles;    L9 type orthogonal array;    experimental design;    Mentha longifolia extract;    reducing agent;    colour changes;    ultraviolet visible spectroscopy;    FTIR;    scanning electron microscopy;    dynamic light scattering;    UV-visible spectrophotometer;    absorbance peak;    DLS analysis;    silver nitrate concentration;    pH;    plant extract concentration;    silver nitrate;    plant extract concentration;    statistical model;    temperature 60 degC;    Ag;   

DOI  :  10.1049/mnl.2017.0308

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

This study is dealing with optimisation of the green synthesised silver nanoparticles (AgNPs) using the Taguchi design. Orthogonal array of L9 type was used as an experimental design to detect the optimum conditions for synthesis of AgNPs. AgNPs were synthesised using the extract of Mentha longifolia as a reducing agent. In addition to the colour changes, ultraviolet visible spectroscopy was used to attest the appearance of AgNPs. Meanwhile, yielded AgNPs were characterised by FT-IR, scanning electron microscopy and dynamic light scattering (DLS) technique. UV–visible spectrophotometer showed absorbance peak at 340 nm. DLS analysis showed that the synthesised AgNPs are 21.1 nm in optimum conditions. The optimised condition for the synthesis of AgNPs revealed that silver nitrate concentration was 10 mM, temperature was 60°C, pH was 9 and plant extract concentration was 3%. The results demonstrated that AgNPs can be synthesised by controlling silver nitrate and plant extract concentration, pH and temperature. The minimum diameter predicted by statistical model was 35 nm while the obtained diameter was 21.1 nm which is very close to the experimental designed measure. This indicates that the statistical predicated proposed by Taguchi was correct.

【 授权许可】

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