Green sonochemical synthesis of silver nanoparticles at varying concentrations of κ-carrageenan

被引：111

作者：

Elsupikhe, Randa Fawzi ^{[1
]}

Shameli, Kamyar ^{[2
]}

Ahmad, Mansor B. ^{[1
]}

Ibrahim, Nor Azowa ^{[1
]}

Zainudin, Norhazlin ^{[1
]}

机构：

[1] Univ Putra Malaysia, Fac Sci, Dept Chem, Serdang 43400, Selangor, Malaysia

[2] Univ Teknol Malaysia, MJIIT, Kuala Lumpur 54100, Malaysia

来源：

NANOSCALE RESEARCH LETTERS | 2015年 / 10卷

关键词：

Green method; Ultrasonic irradiation; Silver nanoparticles; kappa-carrageenan; Silver nitrate; NANO-PARTICLES; POLYSACCHARIDE; NANOTECHNOLOGY; DEGRADATION;

D O I：

10.1186/s11671-015-0916-1

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A green sonochemical method was developed for preparing silver nanoparticles (Ag-NPs) in different concentrations of kappa carrageenan (kappa-carrageenan). The kappa-carrageenan was used as a natural eco-friendly stabilizer, and ultrasonic irradiation was used as a green reducing agent. The number of Ag-NPs increased with increasing kappa-carrageenan concentrations. Formation of Ag/kappa-carrageenan was determined by UV-visible spectroscopy where the surface plasmon absorption maximum was observed at 402 to 420 nm. The X-ray diffraction (XRD) analysis showed that the Ag-NPs are of a face-centered cubic structure. The Fourier transform infrared (FT-IR) spectrum indicated the presence of Ag-NPs in kappa-carrageenan. Transmission electron microscopy (TEM) image for the highest concentration of kappa-carrageenan showed the distribution of Ag-NPs with an average particle size near to 4.21 nm. Scan electron microscopy (SEM) images illustrated the spherical shape of the Ag-NPs. The use of photo irradiation provides a green and economic feature to this work.

引用

页数：8

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