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Transformation of zinc oxide nanoparticles under environmentally relevant conditions: influence of pH and ionic strength

The demands from nanotechnology industry have been increasing every year. The number of usage of ZnO nanoparticles in the consumer products is also rapidly increasing. The release of nanoparticles to the environment may affect the environment itself and eventually on the human health. Water chemistr...

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Main Authors: Velintine, Valach A., Boon, Siong Wee, Suk, Fun Chin, Kuan, Ying Kok
Format: E-Article
Language:English
Published: Transactions on Science and Technology 2017
Subjects:
QD Chemistry
Online Access:http://ir.unimas.my/id/eprint/17123/1/Transformation%20of%20zinc%20oxide%20nanoparticles%20%28abstract%29.pdf
http://ir.unimas.my/id/eprint/17123/
http://www.transectscience.org/pdfs/vol4/no2/vol4n2.html
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spelling my.unimas.ir.171232017-08-09T02:15:19Z http://ir.unimas.my/id/eprint/17123/ Transformation of zinc oxide nanoparticles under environmentally relevant conditions: influence of pH and ionic strength Velintine, Valach A. Boon, Siong Wee Suk, Fun Chin Kuan, Ying Kok QD Chemistry The demands from nanotechnology industry have been increasing every year. The number of usage of ZnO nanoparticles in the consumer products is also rapidly increasing. The release of nanoparticles to the environment may affect the environment itself and eventually on the human health. Water chemistry such as pH and ionic strength play important roles in the release of Zn ions. In this study, two commercially available zinc oxide (ZnO) nanoparticles of size < 50 nm and < 100 nm were purchased and were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and Fourier transform infrared (FTIR) spectroscopy. XRD and TEM confirmed that the size of the particles was in the range stated at the labels. The dissolutions were measured using inductively coupled plasma optical emission spectroscopy (ICP-OES). It was found that the dissolution is higher at pH 1 and decreased as the pH increased. In terms of ionic strength, small size nanoparticles are stable at lower pH while bigger size is ionic strength dependence. Transactions on Science and Technology 2017 E-Article PeerReviewed text en http://ir.unimas.my/id/eprint/17123/1/Transformation%20of%20zinc%20oxide%20nanoparticles%20%28abstract%29.pdf Velintine, Valach A. and Boon, Siong Wee and Suk, Fun Chin and Kuan, Ying Kok (2017) Transformation of zinc oxide nanoparticles under environmentally relevant conditions: influence of pH and ionic strength. Transactions on Science and Technology, 4 (2). pp. 123-136. ISSN 2289-8786 http://www.transectscience.org/pdfs/vol4/no2/vol4n2.html
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
topic QD Chemistry
spellingShingle QD Chemistry
Velintine, Valach A.
Boon, Siong Wee
Suk, Fun Chin
Kuan, Ying Kok
Transformation of zinc oxide nanoparticles under environmentally relevant conditions: influence of pH and ionic strength
description The demands from nanotechnology industry have been increasing every year. The number of usage of ZnO nanoparticles in the consumer products is also rapidly increasing. The release of nanoparticles to the environment may affect the environment itself and eventually on the human health. Water chemistry such as pH and ionic strength play important roles in the release of Zn ions. In this study, two commercially available zinc oxide (ZnO) nanoparticles of size < 50 nm and < 100 nm were purchased and were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and Fourier transform infrared (FTIR) spectroscopy. XRD and TEM confirmed that the size of the particles was in the range stated at the labels. The dissolutions were measured using inductively coupled plasma optical emission spectroscopy (ICP-OES). It was found that the dissolution is higher at pH 1 and decreased as the pH increased. In terms of ionic strength, small size nanoparticles are stable at lower pH while bigger size is ionic strength dependence.
format E-Article
author Velintine, Valach A.
Boon, Siong Wee
Suk, Fun Chin
Kuan, Ying Kok
author_facet Velintine, Valach A.
Boon, Siong Wee
Suk, Fun Chin
Kuan, Ying Kok
author_sort Velintine, Valach A.
title Transformation of zinc oxide nanoparticles under environmentally relevant conditions: influence of pH and ionic strength
title_short Transformation of zinc oxide nanoparticles under environmentally relevant conditions: influence of pH and ionic strength
title_full Transformation of zinc oxide nanoparticles under environmentally relevant conditions: influence of pH and ionic strength
title_fullStr Transformation of zinc oxide nanoparticles under environmentally relevant conditions: influence of pH and ionic strength
title_full_unstemmed Transformation of zinc oxide nanoparticles under environmentally relevant conditions: influence of pH and ionic strength
title_sort transformation of zinc oxide nanoparticles under environmentally relevant conditions: influence of ph and ionic strength
publisher Transactions on Science and Technology
publishDate 2017
url http://ir.unimas.my/id/eprint/17123/1/Transformation%20of%20zinc%20oxide%20nanoparticles%20%28abstract%29.pdf
http://ir.unimas.my/id/eprint/17123/
http://www.transectscience.org/pdfs/vol4/no2/vol4n2.html
_version_ 1644512537090195456
score 13.211869

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