Using a pilot plant to synthesise ZnO powder: particle characterisation and marine toxicity studies

A zinc oxide (ZnO) pilot plant furnace was used to synthesize ZnO nanoparticles at very high capacities in a range of 1-4 t/month. The 4-t custom-designed furnace was used to synthesize ZnO particles possessing primary nanoparticles resembling rods and grains. At a combustion temperature of 1000-130...

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Main Authors:	Mahmud, S., Din, Z.
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2014
Online Access:	http://journalarticle.ukm.my/6856/ http://journalarticle.ukm.my/6856/ http://journalarticle.ukm.my/6856/1/14_S._Mahmud.pdf

id	ukm-6856
recordtype	eprints
spelling	ukm-68562016-12-14T06:42:23Z http://journalarticle.ukm.my/6856/ Using a pilot plant to synthesise ZnO powder: particle characterisation and marine toxicity studies Mahmud, S. Din, Z. A zinc oxide (ZnO) pilot plant furnace was used to synthesize ZnO nanoparticles at very high capacities in a range of 1-4 t/month. The 4-t custom-designed furnace was used to synthesize ZnO particles possessing primary nanoparticles resembling rods and grains. At a combustion temperature of 1000-1300°C, zinc vapour was oxidized into ZnO powder in order to produce granular ZnO (ZG) particles. By blowing air into the combustion chamber, ZnO nanorods (ZR) were produced. The ZR specimen exhibited higher XRD intensities, stronger photocatalysis and higher electrical resistance compared to that of ZG sample. However, the ZR sample showed a stronger toxicity to marine phytoplankton, Isochrysis galbana, by starting to inhibit cell growth at 8 mg/L ZnO concentration in seawater whereas ZG sample started showing growth inhibition at a higher ZnO concentration of 32 mg/L. The toxicity of ZnO primary nanoparticles was probably attributed to the dissolution, release and uptake of free zinc ions especially for the case of the higher surface area of ZR particles that exhibited relatively higher zinc concentration on the particle surface, based on the elemental mapping of the electron spectroscopy imaging results. Universiti Kebangsaan Malaysia 2014-02 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/6856/1/14_S._Mahmud.pdf Mahmud, S. and Din, Z. (2014) Using a pilot plant to synthesise ZnO powder: particle characterisation and marine toxicity studies. Sains Malaysiana, 43 (2). pp. 261-265. ISSN 0126-6039 http://www.ukm.my/jsm
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	A zinc oxide (ZnO) pilot plant furnace was used to synthesize ZnO nanoparticles at very high capacities in a range of 1-4 t/month. The 4-t custom-designed furnace was used to synthesize ZnO particles possessing primary nanoparticles resembling rods and grains. At a combustion temperature of 1000-1300°C, zinc vapour was oxidized into ZnO powder in order to produce granular ZnO (ZG) particles. By blowing air into the combustion chamber, ZnO nanorods (ZR) were produced. The ZR specimen exhibited higher XRD intensities, stronger photocatalysis and higher electrical resistance compared to that of ZG sample. However, the ZR sample showed a stronger toxicity to marine phytoplankton, Isochrysis galbana, by starting to inhibit cell growth at 8 mg/L ZnO concentration in seawater whereas ZG sample started showing growth inhibition at a higher ZnO concentration of 32 mg/L. The toxicity of ZnO primary nanoparticles was probably attributed to the dissolution, release and uptake of free zinc ions especially for the case of the higher surface area of ZR particles that exhibited relatively higher zinc concentration on the particle surface, based on the elemental mapping of the electron spectroscopy imaging results.
format	Article
author	Mahmud, S. Din, Z.
spellingShingle	Mahmud, S. Din, Z. Using a pilot plant to synthesise ZnO powder: particle characterisation and marine toxicity studies
author_facet	Mahmud, S. Din, Z.
author_sort	Mahmud, S.
title	Using a pilot plant to synthesise ZnO powder: particle characterisation and marine toxicity studies
title_short	Using a pilot plant to synthesise ZnO powder: particle characterisation and marine toxicity studies
title_full	Using a pilot plant to synthesise ZnO powder: particle characterisation and marine toxicity studies
title_fullStr	Using a pilot plant to synthesise ZnO powder: particle characterisation and marine toxicity studies
title_full_unstemmed	Using a pilot plant to synthesise ZnO powder: particle characterisation and marine toxicity studies
title_sort	using a pilot plant to synthesise zno powder: particle characterisation and marine toxicity studies
publisher	Universiti Kebangsaan Malaysia
publishDate	2014
url	http://journalarticle.ukm.my/6856/ http://journalarticle.ukm.my/6856/ http://journalarticle.ukm.my/6856/1/14_S._Mahmud.pdf
first_indexed	2023-09-18T19:48:03Z
last_indexed	2023-09-18T19:48:03Z
_version_	1777406033083236352

Using a pilot plant to synthesise ZnO powder: particle characterisation and marine toxicity studies

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