Characterization and stability monitoring of maghemite nanoparticle suspensions

Maghemite nanoparticle suspensions were synthesized using a co-precipitation method and characterized by a variety of techniques including XRD, TEM, magnetic measurement, DLS, and zeta potential. The stability of the suspension was monitored by measuring the particle size distribution using DLS ove...

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Main Authors:	Nurdin, Irwan, Yaacob, Iskandar Idris, Johan, Mohd. Rafie, Bee , Chin Ang
Format:	Article
Language:	English
Published:	Trans Tech Publications, Switzerland 2012
Subjects:	TP155 Chemical engineering
Online Access:	http://irep.iium.edu.my/27557/ http://irep.iium.edu.my/27557/1/AMR.576.398.pdf

id	iium-27557
recordtype	eprints
spelling	iium-275572013-01-29T01:53:52Z http://irep.iium.edu.my/27557/ Characterization and stability monitoring of maghemite nanoparticle suspensions Nurdin, Irwan Yaacob, Iskandar Idris Johan, Mohd. Rafie Bee , Chin Ang TP155 Chemical engineering Maghemite nanoparticle suspensions were synthesized using a co-precipitation method and characterized by a variety of techniques including XRD, TEM, magnetic measurement, DLS, and zeta potential. The stability of the suspension was monitored by measuring the particle size distribution using DLS over a period of two months. The diffraction pattern from XRD measurement confirmed that the particles were maghemite with an average crystallite size of 9.4 nm. TEM observations and analyses showed that the geometry of maghemite nanoparticles were nearly spherical with a mean physical diameter of 9.9 nm. The maghemite nanoparticles showed superparamagnetic behavior with saturation magnetization value of 32.20 emu/g. The mean hydrodynamic diameter of the suspension remained unchanged after two months which indicated no formation of aggregation. The hydrodynamic diameters recorded were 45.1 nm and 48.4 nm, respectively. Additionally, lack of sedimentation indicated that the suspension was stable. The suspension’s zeta potential values were 41.5 mV and 40.4 mV for as synthesized and after two month of storage respectively. Trans Tech Publications, Switzerland 2012 Article PeerReviewed application/pdf en http://irep.iium.edu.my/27557/1/AMR.576.398.pdf Nurdin, Irwan and Yaacob, Iskandar Idris and Johan, Mohd. Rafie and Bee , Chin Ang (2012) Characterization and stability monitoring of maghemite nanoparticle suspensions. Advanced Materials Research, 576. pp. 398-401. ISSN 1022-6680
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TP155 Chemical engineering
spellingShingle	TP155 Chemical engineering Nurdin, Irwan Yaacob, Iskandar Idris Johan, Mohd. Rafie Bee , Chin Ang Characterization and stability monitoring of maghemite nanoparticle suspensions
description	Maghemite nanoparticle suspensions were synthesized using a co-precipitation method and characterized by a variety of techniques including XRD, TEM, magnetic measurement, DLS, and zeta potential. The stability of the suspension was monitored by measuring the particle size distribution using DLS over a period of two months. The diffraction pattern from XRD measurement confirmed that the particles were maghemite with an average crystallite size of 9.4 nm. TEM observations and analyses showed that the geometry of maghemite nanoparticles were nearly spherical with a mean physical diameter of 9.9 nm. The maghemite nanoparticles showed superparamagnetic behavior with saturation magnetization value of 32.20 emu/g. The mean hydrodynamic diameter of the suspension remained unchanged after two months which indicated no formation of aggregation. The hydrodynamic diameters recorded were 45.1 nm and 48.4 nm, respectively. Additionally, lack of sedimentation indicated that the suspension was stable. The suspension’s zeta potential values were 41.5 mV and 40.4 mV for as synthesized and after two month of storage respectively.
format	Article
author	Nurdin, Irwan Yaacob, Iskandar Idris Johan, Mohd. Rafie Bee , Chin Ang
author_facet	Nurdin, Irwan Yaacob, Iskandar Idris Johan, Mohd. Rafie Bee , Chin Ang
author_sort	Nurdin, Irwan
title	Characterization and stability monitoring of maghemite nanoparticle suspensions
title_short	Characterization and stability monitoring of maghemite nanoparticle suspensions
title_full	Characterization and stability monitoring of maghemite nanoparticle suspensions
title_fullStr	Characterization and stability monitoring of maghemite nanoparticle suspensions
title_full_unstemmed	Characterization and stability monitoring of maghemite nanoparticle suspensions
title_sort	characterization and stability monitoring of maghemite nanoparticle suspensions
publisher	Trans Tech Publications, Switzerland
publishDate	2012
url	http://irep.iium.edu.my/27557/ http://irep.iium.edu.my/27557/1/AMR.576.398.pdf
first_indexed	2023-09-18T20:40:55Z
last_indexed	2023-09-18T20:40:55Z
_version_	1777409358996439040

Characterization and stability monitoring of maghemite nanoparticle suspensions

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