Influence of precursor concentration and temperature on the formation of nanosilver in chemical reduction method

Nanosilver particles (NSPs) were produced by the reduction of silver nitrate using glucose as reducer, poly (vinyl pyrrolidone) as stabilizer and sodium hydroxide as reaction enhancer. Two parameters were investigated which are silver nitrate concentration (0.1 M, 0.5 M and 1.0 M) and reaction tempe...

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Main Authors:	N. Ahmad, Ang, B.C., M.A. Amalina, Bong, C.W.
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2018
Online Access:	http://journalarticle.ukm.my/11992/ http://journalarticle.ukm.my/11992/ http://journalarticle.ukm.my/11992/1/19%20N.%20Ahmad.pdf

id	ukm-11992
recordtype	eprints
spelling	ukm-119922018-08-17T09:06:07Z http://journalarticle.ukm.my/11992/ Influence of precursor concentration and temperature on the formation of nanosilver in chemical reduction method N. Ahmad, Ang, B.C. M.A. Amalina, Bong, C.W. Nanosilver particles (NSPs) were produced by the reduction of silver nitrate using glucose as reducer, poly (vinyl pyrrolidone) as stabilizer and sodium hydroxide as reaction enhancer. Two parameters were investigated which are silver nitrate concentration (0.1 M, 0.5 M and 1.0 M) and reaction temperature (60°C and 80°C). Through spectral analysis using ultraviolet-visible spectrophotometer (UV-vis), all the samples recorded the maximum peak in the range of 384-411 nm which verified the formation of NSPs. TEM images showed the nanoparticles have spherical shape with the size range of 25-39 nm. Particle size and zeta potential analysis recorded the hydrodynamic size of nanoparticles in the range of 85-105 nm and the zeta potential ranging from -25 to -30 mV, under the pH value of 8. X-ray diffraction analysis showed that the NSPs have face center cubic (FCC) structure. All the produced NSPs surprisingly showed ferromagnetic-like behaviour based on the magnetization curves. FTIR result confirmed the presence of poly (vinyl pyrrolidone) on the NSPs surface. Furthermore, at the reaction temperature 60°C, the crystallite size, physical size as well as hydrodynamic size increased as the precursor concentration increased from 0.1 M to 0.5 M. However, as the precursor concentration further increases to 1.0 M, the size become smaller due to incomplete reduction process. In contrast, at 80°C, the sizes was gradually increased as the precursor concentration increases up to 1.0 M. In terms of controlled precursor concentration, the crystallite size and physical size become smaller as the temperature increases. Penerbit Universiti Kebangsaan Malaysia 2018-01 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/11992/1/19%20N.%20Ahmad.pdf N. Ahmad, and Ang, B.C. and M.A. Amalina, and Bong, C.W. (2018) Influence of precursor concentration and temperature on the formation of nanosilver in chemical reduction method. Sains Malaysiana, 47 (1). pp. 157-168. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol47num1_2018/contentsVol47num1_2018.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Nanosilver particles (NSPs) were produced by the reduction of silver nitrate using glucose as reducer, poly (vinyl pyrrolidone) as stabilizer and sodium hydroxide as reaction enhancer. Two parameters were investigated which are silver nitrate concentration (0.1 M, 0.5 M and 1.0 M) and reaction temperature (60°C and 80°C). Through spectral analysis using ultraviolet-visible spectrophotometer (UV-vis), all the samples recorded the maximum peak in the range of 384-411 nm which verified the formation of NSPs. TEM images showed the nanoparticles have spherical shape with the size range of 25-39 nm. Particle size and zeta potential analysis recorded the hydrodynamic size of nanoparticles in the range of 85-105 nm and the zeta potential ranging from -25 to -30 mV, under the pH value of 8. X-ray diffraction analysis showed that the NSPs have face center cubic (FCC) structure. All the produced NSPs surprisingly showed ferromagnetic-like behaviour based on the magnetization curves. FTIR result confirmed the presence of poly (vinyl pyrrolidone) on the NSPs surface. Furthermore, at the reaction temperature 60°C, the crystallite size, physical size as well as hydrodynamic size increased as the precursor concentration increased from 0.1 M to 0.5 M. However, as the precursor concentration further increases to 1.0 M, the size become smaller due to incomplete reduction process. In contrast, at 80°C, the sizes was gradually increased as the precursor concentration increases up to 1.0 M. In terms of controlled precursor concentration, the crystallite size and physical size become smaller as the temperature increases.
format	Article
author	N. Ahmad, Ang, B.C. M.A. Amalina, Bong, C.W.
spellingShingle	N. Ahmad, Ang, B.C. M.A. Amalina, Bong, C.W. Influence of precursor concentration and temperature on the formation of nanosilver in chemical reduction method
author_facet	N. Ahmad, Ang, B.C. M.A. Amalina, Bong, C.W.
author_sort	N. Ahmad,
title	Influence of precursor concentration and temperature on the formation of nanosilver in chemical reduction method
title_short	Influence of precursor concentration and temperature on the formation of nanosilver in chemical reduction method
title_full	Influence of precursor concentration and temperature on the formation of nanosilver in chemical reduction method
title_fullStr	Influence of precursor concentration and temperature on the formation of nanosilver in chemical reduction method
title_full_unstemmed	Influence of precursor concentration and temperature on the formation of nanosilver in chemical reduction method
title_sort	influence of precursor concentration and temperature on the formation of nanosilver in chemical reduction method
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2018
url	http://journalarticle.ukm.my/11992/ http://journalarticle.ukm.my/11992/ http://journalarticle.ukm.my/11992/1/19%20N.%20Ahmad.pdf
first_indexed	2023-09-18T20:01:36Z
last_indexed	2023-09-18T20:01:36Z
_version_	1777406886015926272

Influence of precursor concentration and temperature on the formation of nanosilver in chemical reduction method

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