Characterization of a multi-metal binding biosorbent: Chemical modification and desorption studies

Abdolali, A; Ngo, HH; Guo, W; Zhou, JL; Du, B; Wei, Q; Wang, XC; Nguyen, PD

Characterization of a multi-metal binding biosorbent: Chemical modification and desorption studies

Abdolali, A Ngo, HH

Guo, W

Zhou, JL

Du, B Wei, Q Wang, XC Nguyen, PD

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Publication Type:: Journal Article
Citation:: Bioresource Technology, 2015, 193 pp. 477 - 487
Issue Date:: 2015-10-01

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Field	Value	Language
dc.contributor.author	Abdolali, A	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Guo, W https://orcid.org/0000-0001-5542-2858	en_US
dc.contributor.author	Zhou, JL https://orcid.org/0000-0003-1393-1608	en_US
dc.contributor.author	Du, B	en_US
dc.contributor.author	Wei, Q	en_US
dc.contributor.author	Wang, XC	en_US
dc.contributor.author	Nguyen, PD	en_US
dc.date.available	2015-06-24	en_US
dc.date.issued	2015-10-01	en_US
dc.identifier.citation	Bioresource Technology, 2015, 193 pp. 477 - 487	en_US
dc.identifier.issn	0960-8524	en_US
dc.identifier.uri	http://hdl.handle.net/10453/36493
dc.description.abstract	© 2015 Elsevier Ltd. This work attends to preparation and characterization of a novel multi-metal binding biosorbent after chemical modification and desorption studies. Biomass is a combination of tea waste, maple leaves and mandarin peels with a certain proportion to adsorb cadmium, copper, lead and zinc ions from aqueous solutions. The mechanism involved in metal removal was investigated by SEM, SEM/EDS and FTIR. SEM/EDS showed the presence of different chemicals and adsorbed heavy metal ions on the surface of biosorbent. FTIR of both unmodified and modified biosorbents revealed the important role of carboxylate groups in heavy metal biosorption. Desorption using different eluents and 0.1M HCl showed the best desorption performance. The effectiveness of regeneration step by 1M CaCl2 on five successive cycles of sorption and desorption displays this multi-metal binding biosorbent (MMBB) can effectively be utilized as an adsorbent to remove heavy metal ions from aqueous solutions in five cycles of sorption/desorption/regeneration.	en_US
dc.relation.ispartof	Bioresource Technology	en_US
dc.relation.isbasedon	10.1016/j.biortech.2015.06.123	en_US
dc.subject.classification	Biotechnology	en_US
dc.subject.mesh	Plant Leaves	en_US
dc.subject.mesh	Hydrochloric Acid	en_US
dc.subject.mesh	Metals	en_US
dc.subject.mesh	Microscopy, Electron, Scanning	en_US
dc.subject.mesh	Spectroscopy, Fourier Transform Infrared	en_US
dc.subject.mesh	Spectrometry, X-Ray Emission	en_US
dc.subject.mesh	Temperature	en_US
dc.subject.mesh	Waste Products	en_US
dc.subject.mesh	Kinetics	en_US
dc.subject.mesh	Adsorption	en_US
dc.subject.mesh	Particle Size	en_US
dc.subject.mesh	Time Factors	en_US
dc.title	Characterization of a multi-metal binding biosorbent: Chemical modification and desorption studies	en_US
dc.type	Journal Article
utslib.citation.volume	193	en_US
utslib.for	090404 Membrane and Separation Technologies	en_US
utslib.for	0907 Environmental Engineering	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
pubs.organisational-group	/University of Technology Sydney/Students
utslib.copyright.status	closed_access
pubs.publication-status	Published	en_US
pubs.volume	193	en_US

Abstract:

© 2015 Elsevier Ltd. This work attends to preparation and characterization of a novel multi-metal binding biosorbent after chemical modification and desorption studies. Biomass is a combination of tea waste, maple leaves and mandarin peels with a certain proportion to adsorb cadmium, copper, lead and zinc ions from aqueous solutions. The mechanism involved in metal removal was investigated by SEM, SEM/EDS and FTIR. SEM/EDS showed the presence of different chemicals and adsorbed heavy metal ions on the surface of biosorbent. FTIR of both unmodified and modified biosorbents revealed the important role of carboxylate groups in heavy metal biosorption. Desorption using different eluents and 0.1M HCl showed the best desorption performance. The effectiveness of regeneration step by 1M CaCl2 on five successive cycles of sorption and desorption displays this multi-metal binding biosorbent (MMBB) can effectively be utilized as an adsorbent to remove heavy metal ions from aqueous solutions in five cycles of sorption/desorption/regeneration.

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http://hdl.handle.net/10453/36493