A comprehensive physicochemical characterization of zinc oxide nanoparticles extracted from sunscreens and wastewaters

Khan, AUH; Liu, Y; Fang, C; Naidu, R; Shon, HK; Rogers, Z; Dharmarajan, R

A comprehensive physicochemical characterization of zinc oxide nanoparticles extracted from sunscreens and wastewaters

Khan, AUH Liu, Y Fang, C Naidu, R Shon, HK Rogers, Z Dharmarajan, R

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Environmental Advances, 2023, 12, pp. 100381
Issue Date:: 2023-07-01

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Field	Value	Language
dc.contributor.author	Khan, AUH
dc.contributor.author	Liu, Y
dc.contributor.author	Fang, C
dc.contributor.author	Naidu, R
dc.contributor.author	Shon, HK
dc.contributor.author	Rogers, Z
dc.contributor.author	Dharmarajan, R
dc.date.accessioned	2024-03-06T06:10:31Z
dc.date.available	2024-03-06T06:10:31Z
dc.date.issued	2023-07-01
dc.identifier.citation	Environmental Advances, 2023, 12, pp. 100381
dc.identifier.issn	2666-7657
dc.identifier.uri	http://hdl.handle.net/10453/176211
dc.description.abstract	The widespread popularity of sunscreens contributes significantly to the release of zinc oxide (ZnO) nanoparticles into bodies of water, yet there is still lack of sufficient understanding on the realistic behaviour and long-term exposure. In this study, a simple and effective method was used to extract ZnO nanoparticles from ZnO-based sunscreen products (available in Australia) that end up in wastewaters. The extracted ZnO nanoparticles were negative charged at controlled pH 7. Transmission electron microscopy (TEM) analysis revealed an irregular, spherical and rod-shaped nanoparticles extracted from sunscreens and wastewaters with size ≥100 nm. Various nanoparticles containingZnO, iron, silver, and titanium were detected in wastewater samples collected from treatment plants. Other contaminants were also found in the wastewater samples based on TEM elemental analysis. The results documented in this study are useful to understand the presence and characterizations of ZnO nanoparticles in sunscreens and wastewaters. With this knowledge, we can realistically investigate the fate, behaviours and adverse effects of ZnO nanoparticles.
dc.language	en
dc.publisher	Elsevier
dc.relation	University of Technology SydneyUTSCPDRF06
dc.relation.ispartof	Environmental Advances
dc.relation.isbasedon	10.1016/j.envadv.2023.100381
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	41 Environmental sciences
dc.title	A comprehensive physicochemical characterization of zinc oxide nanoparticles extracted from sunscreens and wastewaters
dc.type	Journal Article
utslib.citation.volume	12
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access	*
dc.date.updated	2024-03-06T06:10:29Z
pubs.publication-status	Published
pubs.volume	12

Abstract:

The widespread popularity of sunscreens contributes significantly to the release of zinc oxide (ZnO) nanoparticles into bodies of water, yet there is still lack of sufficient understanding on the realistic behaviour and long-term exposure. In this study, a simple and effective method was used to extract ZnO nanoparticles from ZnO-based sunscreen products (available in Australia) that end up in wastewaters. The extracted ZnO nanoparticles were negative charged at controlled pH 7. Transmission electron microscopy (TEM) analysis revealed an irregular, spherical and rod-shaped nanoparticles extracted from sunscreens and wastewaters with size ≥100 nm. Various nanoparticles containingZnO, iron, silver, and titanium were detected in wastewater samples collected from treatment plants. Other contaminants were also found in the wastewater samples based on TEM elemental analysis. The results documented in this study are useful to understand the presence and characterizations of ZnO nanoparticles in sunscreens and wastewaters. With this knowledge, we can realistically investigate the fate, behaviours and adverse effects of ZnO nanoparticles.

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http://hdl.handle.net/10453/176211