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Silver nanoparticles in the water environment in Malaysia: inspection, characterization, removal, modeling, and future perspective

The current status of silver nanoparticles (AgNPs) in the water environment in Malaysia was examined and reported. For inspection, two rivers and two sewage treatment plants (STPs) were selected. Two activated carbons derived from oil palm (ACfOPS) and coconut (ACfCS) shells were proposed as the ads...

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Main Authors:	Syafiuddin, A., Salmiati, S., Hadibarata, T., Kueh, A. B. H., Salim, M. R., Zaini, M. A. A.
Format:	Article
Language:	English
Published:	Nature Publishing Group 2018
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://eprints.utm.my/id/eprint/79641/1/AchmadSyafiuddin2018_SilverNanoparticlesintheWaterEnvironment.pdf http://eprints.utm.my/id/eprint/79641/ http://dx.doi.org/10.1038/s41598-018-19375-1
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spelling	my.utm.796412019-01-28T04:58:19Z http://eprints.utm.my/id/eprint/79641/ Silver nanoparticles in the water environment in Malaysia: inspection, characterization, removal, modeling, and future perspective Syafiuddin, A. Salmiati, S. Hadibarata, T. Kueh, A. B. H. Salim, M. R. Zaini, M. A. A. TA Engineering (General). Civil engineering (General) The current status of silver nanoparticles (AgNPs) in the water environment in Malaysia was examined and reported. For inspection, two rivers and two sewage treatment plants (STPs) were selected. Two activated carbons derived from oil palm (ACfOPS) and coconut (ACfCS) shells were proposed as the adsorbent to remove AgNPs. It was found that the concentrations of AgNPs in the rivers and STPs are in the ranges of 0.13 to 10.16 mg L−1 and 0.13 to 20.02 mg L−1, respectively, with the highest concentration measured in July. ACfOPS and ACfCS removed up to 99.6 and 99.9% of AgNPs, respectively, from the water. The interaction mechanism between AgNPs and the activated carbon surface employed in this work was mainly the electrostatic force interaction via binding Ag+ with O− presented in the activated carbon to form AgO. Fifteen kinetic models were compared statistically to describe the removal of AgNPs. It was found that the experimental adsorption data can be best described using the mixed 1,2-order model. Therefore, this model has the potential to be a candidate for a general model to describe AgNPs adsorption using numerous materials, its validation of which has been confirmed with other material data from previous works. Nature Publishing Group 2018 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/79641/1/AchmadSyafiuddin2018_SilverNanoparticlesintheWaterEnvironment.pdf Syafiuddin, A. and Salmiati, S. and Hadibarata, T. and Kueh, A. B. H. and Salim, M. R. and Zaini, M. A. A. (2018) Silver nanoparticles in the water environment in Malaysia: inspection, characterization, removal, modeling, and future perspective. Scientific Reports, 8 (1). ISSN 2045-2322 http://dx.doi.org/10.1038/s41598-018-19375-1 DOI:10.1038/s41598-018-19375-1
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
language	English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Syafiuddin, A. Salmiati, S. Hadibarata, T. Kueh, A. B. H. Salim, M. R. Zaini, M. A. A. Silver nanoparticles in the water environment in Malaysia: inspection, characterization, removal, modeling, and future perspective
description	The current status of silver nanoparticles (AgNPs) in the water environment in Malaysia was examined and reported. For inspection, two rivers and two sewage treatment plants (STPs) were selected. Two activated carbons derived from oil palm (ACfOPS) and coconut (ACfCS) shells were proposed as the adsorbent to remove AgNPs. It was found that the concentrations of AgNPs in the rivers and STPs are in the ranges of 0.13 to 10.16 mg L−1 and 0.13 to 20.02 mg L−1, respectively, with the highest concentration measured in July. ACfOPS and ACfCS removed up to 99.6 and 99.9% of AgNPs, respectively, from the water. The interaction mechanism between AgNPs and the activated carbon surface employed in this work was mainly the electrostatic force interaction via binding Ag+ with O− presented in the activated carbon to form AgO. Fifteen kinetic models were compared statistically to describe the removal of AgNPs. It was found that the experimental adsorption data can be best described using the mixed 1,2-order model. Therefore, this model has the potential to be a candidate for a general model to describe AgNPs adsorption using numerous materials, its validation of which has been confirmed with other material data from previous works.
format	Article
author	Syafiuddin, A. Salmiati, S. Hadibarata, T. Kueh, A. B. H. Salim, M. R. Zaini, M. A. A.
author_facet	Syafiuddin, A. Salmiati, S. Hadibarata, T. Kueh, A. B. H. Salim, M. R. Zaini, M. A. A.
author_sort	Syafiuddin, A.
title	Silver nanoparticles in the water environment in Malaysia: inspection, characterization, removal, modeling, and future perspective
title_short	Silver nanoparticles in the water environment in Malaysia: inspection, characterization, removal, modeling, and future perspective
title_full	Silver nanoparticles in the water environment in Malaysia: inspection, characterization, removal, modeling, and future perspective
title_fullStr	Silver nanoparticles in the water environment in Malaysia: inspection, characterization, removal, modeling, and future perspective
title_full_unstemmed	Silver nanoparticles in the water environment in Malaysia: inspection, characterization, removal, modeling, and future perspective
title_sort	silver nanoparticles in the water environment in malaysia: inspection, characterization, removal, modeling, and future perspective
publisher	Nature Publishing Group
publishDate	2018
url	http://eprints.utm.my/id/eprint/79641/1/AchmadSyafiuddin2018_SilverNanoparticlesintheWaterEnvironment.pdf http://eprints.utm.my/id/eprint/79641/ http://dx.doi.org/10.1038/s41598-018-19375-1
_version_	1643658250656153600
score	13.211869

Silver nanoparticles in the water environment in Malaysia: inspection, characterization, removal, modeling, and future perspective

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