Copper ion removal from dilute solutions using ultrasonically synthesised BSA- and EWP-coated air bubbles

2.50
Hdl Handle:
http://hdl.handle.net/2436/620505
Title:
Copper ion removal from dilute solutions using ultrasonically synthesised BSA- and EWP-coated air bubbles
Authors:
Nazari, Amir Mohammad; Cox, Phil; Waters, Kristian E.
Abstract:
The aim of this study was to remove copper ions from dilute copper solution using an innovative material known as air-filled emulsion (AFE). AFE is composed of microscopic bubbles enclosed by a thin film of cysteine-rich protein distributed through the aqueous solution. The method using AFE as an extractant is combination of air-assisted solvent extraction (AASX) and biosorption techniques. The data obtained from X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FTIR) clearly showed the thiol, amino and carboxylic groups of bovine serum albumin (BSA) and egg white protein (EWP)-coated bubbles being responsible for copper adsorption. Moreover, it was also observed that manipulation of experimental conditions such as solution pH, temperature, biosorbent and copper concentration had a significant impact on copper ion uptake. Higher solution pH led to a greater metal uptake for both egg white protein emulsion (EWPEM) and bovine serum albumin emulsion (BSAEM). At lower pH, copper removal diminished and no copper removal was obtained at pH 2 due to the high concentration of hydrogen ions. The increase of copper uptake with temperature rise was due to both the exposure of more functional groups that were initially buried in the interior of the protein structure and an increase in reaction kinetics.
Citation:
Copper ion removal from dilute solutions using ultrasonically synthesised BSA- and EWP-coated air bubbles 2014, 132:218 Separation and Purification Technology
Publisher:
Elsevier
Journal:
Separation and Purification Technology
Issue Date:
Aug-2014
URI:
http://hdl.handle.net/2436/620505
DOI:
10.1016/j.seppur.2014.05.025
Additional Links:
http://linkinghub.elsevier.com/retrieve/pii/S1383586614003116
Type:
Article
Language:
en
ISSN:
13835866; 1383-5866
Appears in Collections:
FSE

Full metadata record

DC FieldValue Language
dc.contributor.authorNazari, Amir Mohammaden
dc.contributor.authorCox, Philen
dc.contributor.authorWaters, Kristian E.en
dc.date.accessioned2017-06-08T10:53:18Z-
dc.date.available2017-06-08T10:53:18Z-
dc.date.issued2014-08-
dc.identifier.citationCopper ion removal from dilute solutions using ultrasonically synthesised BSA- and EWP-coated air bubbles 2014, 132:218 Separation and Purification Technologyen
dc.identifier.issn13835866-
dc.identifier.issn1383-5866-
dc.identifier.doi10.1016/j.seppur.2014.05.025-
dc.identifier.urihttp://hdl.handle.net/2436/620505-
dc.description.abstractThe aim of this study was to remove copper ions from dilute copper solution using an innovative material known as air-filled emulsion (AFE). AFE is composed of microscopic bubbles enclosed by a thin film of cysteine-rich protein distributed through the aqueous solution. The method using AFE as an extractant is combination of air-assisted solvent extraction (AASX) and biosorption techniques. The data obtained from X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared (FTIR) clearly showed the thiol, amino and carboxylic groups of bovine serum albumin (BSA) and egg white protein (EWP)-coated bubbles being responsible for copper adsorption. Moreover, it was also observed that manipulation of experimental conditions such as solution pH, temperature, biosorbent and copper concentration had a significant impact on copper ion uptake. Higher solution pH led to a greater metal uptake for both egg white protein emulsion (EWPEM) and bovine serum albumin emulsion (BSAEM). At lower pH, copper removal diminished and no copper removal was obtained at pH 2 due to the high concentration of hydrogen ions. The increase of copper uptake with temperature rise was due to both the exposure of more functional groups that were initially buried in the interior of the protein structure and an increase in reaction kinetics.en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S1383586614003116en
dc.rightsArchived with thanks to Separation and Purification Technologyen
dc.subjectHeavy metal removalen
dc.subjectEmulsionen
dc.subjectCysteine proteinen
dc.subjectSonochemistryen
dc.subjectBiosorptionen
dc.titleCopper ion removal from dilute solutions using ultrasonically synthesised BSA- and EWP-coated air bubblesen
dc.typeArticleen
dc.identifier.journalSeparation and Purification Technologyen
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