Cr(VI) Removal from Aqueous Solution Using a Magnetite Snail Shell

Hoang, LP; Nguyen, TMP; Van, HT; Hoang, TKD; Vu, XH; Nguyen, TV; Ca, NX

Cr(VI) Removal from Aqueous Solution Using a Magnetite Snail Shell

Hoang, LP Nguyen, TMP Van, HT Hoang, TKD Vu, XH Nguyen, TV Ca, NX

Permalink

Publication Type:: Journal Article
Citation:: Water, Air, and Soil Pollution, 2020, 231 (1)
Issue Date:: 2020-01-01

Open Access

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is open access.

Adobe PDF

Download Accepted Manuscript versionAdobe PDF (1.55 MB)

View on publisher's site

View statistics

Full metadata record

Field	Value	Language
dc.contributor.author	Hoang, LP	en_US
dc.contributor.author	Nguyen, TMP	en_US
dc.contributor.author	Van, HT	en_US
dc.contributor.author	Hoang, TKD	en_US
dc.contributor.author	Vu, XH	en_US
dc.contributor.author	Nguyen, TV	en_US
dc.contributor.author	Ca, NX https://orcid.org/0000-0002-9584-8383	en_US
dc.date.available	2021-01-13T18:02:51Z
dc.date.issued	2020-01-01	en_US
dc.identifier.citation	Water, Air, and Soil Pollution, 2020, 231 (1)	en_US
dc.identifier.issn	0049-6979	en_US
dc.identifier.uri	http://hdl.handle.net/10453/138247
dc.description.abstract	© 2020, Springer Nature Switzerland AG. In this study, magnetic snail shell (MSS) prepared by impregnating of iron oxide onto snail shell (SS) powder was used for removing Cr(VI) from aqueous solution. Among six different mass ratios of Fe/SS powder studied, the MSS25 produced at a ratio of 25% achieved the highest Cr(VI) adsorption capacity. Batch adsorption experiments were conducted to investigate the adsorption isotherm, kinetics, and mechanism of Cr(VI) onto MSS25. The results illustrated that adsorption of Cr(VI) onto MSS25 reached equilibrium after 150 min at pH 3. The adsorption kinetics could be well described by the pseudo-second order model (R2 = 0.986). The Langmuir model (R2 = 0.971) was the best-fitting model that described the adsorption isotherm of Cr(VI) onto MSS25. The maximum adsorption capacity was 46.08 mg Cr(VI) per gram of MSS25. Ion exchange, electrostatic attraction, and adsorption-coupled reduction were determined as the main adsorption mechanisms of Cr(VI) onto MSS25. The high percentages of CaCO3 and Fe3O4 found in the MSS25 structure made a significant contribution to the Cr(VI) adsorption process.	en_US
dc.relation.ispartof	Water, Air, and Soil Pollution	en_US
dc.relation.isbasedon	10.1007/s11270-020-4406-4	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Environmental Sciences	en_US
dc.title	Cr(VI) Removal from Aqueous Solution Using a Magnetite Snail Shell	en_US
dc.type	Journal Article
utslib.citation.volume	1	en_US
utslib.citation.volume	231	en_US
pubs.embargo.period	Not known	en_US
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	*
pubs.issue	1	en_US
pubs.publication-status	Published	en_US
pubs.volume	231	en_US

Abstract:

© 2020, Springer Nature Switzerland AG. In this study, magnetic snail shell (MSS) prepared by impregnating of iron oxide onto snail shell (SS) powder was used for removing Cr(VI) from aqueous solution. Among six different mass ratios of Fe/SS powder studied, the MSS25 produced at a ratio of 25% achieved the highest Cr(VI) adsorption capacity. Batch adsorption experiments were conducted to investigate the adsorption isotherm, kinetics, and mechanism of Cr(VI) onto MSS25. The results illustrated that adsorption of Cr(VI) onto MSS25 reached equilibrium after 150 min at pH 3. The adsorption kinetics could be well described by the pseudo-second order model (R2 = 0.986). The Langmuir model (R2 = 0.971) was the best-fitting model that described the adsorption isotherm of Cr(VI) onto MSS25. The maximum adsorption capacity was 46.08 mg Cr(VI) per gram of MSS25. Ion exchange, electrostatic attraction, and adsorption-coupled reduction were determined as the main adsorption mechanisms of Cr(VI) onto MSS25. The high percentages of CaCO3 and Fe3O4 found in the MSS25 structure made a significant contribution to the Cr(VI) adsorption process.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/138247