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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Environmental synthesis of silver nanoparticles using hydroxypropyl starch and their characterization
Carbohydrate Polymers, Volume 86, No. 2, Year 2011
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Description
Silver nanoparticles (AgNPs) were synthesized in an alkaline aqueous solution of silver nitrate (AgNO3)/hydroxypropyl starch (HPS) using chemical reduction method. HPS is water soluble/biocompatible starch derivative which play a dual rule as reducing agent for silver ions and as stabilizing agent too for the formed AgNPs. The influences of the reaction parameters, such as the concentrations of HPS and AgNO3, pH, temperature, and duration of the reaction medium on the size and agglomeration of the formed AgNPs were studied. The formation of AgNPs has been confirmed with ultraviolet-visible spectra and transmission electron microscopy (TEM) images. The diameter range of well stabilized AgNPs solution with a concentration of 500 ppm of a diameter of 6-8 nm was obtained. The obtained AgNPs remain without aggregation for more than six months. The advantage of this methodology is that it is possible to prepare AgNPs without any organic solvents or other reducing agents. © 2011 Elsevier Ltd All rights reserved.
Authors & Co-Authors
El-Rafie, M. H.
Egypt, Giza
National Research Centre
El-Naggar, Mehrez E.
Saudi Arabia, Riyadh
King Saud University
Egypt, Giza
National Research Centre
Ramadan, Mohamed A.
Egypt, Giza
National Research Centre
Fouda, Moustafa M.G.
Saudi Arabia, Riyadh
King Saud University
Egypt, Giza
National Research Centre
Al-Deyab, Salem Salem
Saudi Arabia, Riyadh
College of Sciences
Hebeish, Ali Ali
Egypt, Giza
National Research Centre
Statistics
Citations: 168
Authors: 6
Affiliations: 3
Identifiers
Doi:
10.1016/j.carbpol.2011.04.088
ISSN:
01448617
Research Areas
Environmental