Surface modification of polypropylene membrane for the removal of iodine using polydopamine chemistry.

Changani, Z; Razmjou, A; Taheri-Kafrani, A; Warkiani, ME; Asadnia, M

Surface modification of polypropylene membrane for the removal of iodine using polydopamine chemistry.

Changani, Z Razmjou, A Taheri-Kafrani, A Warkiani, ME Asadnia, M

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Publisher:: PERGAMON-ELSEVIER SCIENCE LTD
Publication Type:: Journal Article
Citation:: Chemosphere, 2020, 249
Issue Date:: 2020-06

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Field	Value	Language
dc.contributor.author	Changani, Z
dc.contributor.author	Razmjou, A
dc.contributor.author	Taheri-Kafrani, A
dc.contributor.author	Warkiani, ME
dc.contributor.author	Asadnia, M
dc.date.accessioned	2021-03-08T05:06:40Z
dc.date.available	2020-01-30
dc.date.available	2021-03-08T05:06:40Z
dc.date.issued	2020-06
dc.identifier.citation	Chemosphere, 2020, 249
dc.identifier.issn	0045-6535
dc.identifier.issn	1879-1298
dc.identifier.uri	http://hdl.handle.net/10453/146916
dc.description.abstract	The development of stable and effective iodine removal systems would be highly desirable in addressing environmental issues relevant to water contamination. In the present research, a novel iodine adsorbent was synthesized by self-polymerization of dopamine (PDA) onto inert polypropylene (PP) membrane. This PP/PDA membrane was thoroughly characterized and its susrface propeties was analyzed by various analytical techniques indcluding field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM), attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), Brunauer-Emmett-Teller (BET) and Barrett-Joyner-Halenda (BJH), contact angle, and surface free energy measurement. The PP/PDA membranes were subsequently used for batchwise removal of iodine at different temperatures (25-70 °C), pH (2-7), and surface areas (1-10 cm2) to understand the underlying adsorption phenomena and to estimate the membrane capacity for iodine uptake. The increase in temperature and pH both led to higher adsorption of iodine. The present approach showed a removal efficiency of over 75% for iodine using 10 cm2 PP/PDA membrane (18.87 m2 g-1) within 2 h at moderate temperatures (∼50 °C) and pH > 4, about 15 fold compared to the PP control membrane. The adsorption kinetics and isotherms were well fitted to the pseudo-second-order kinetic and Langmuir isotherm models (R2 > 0.99). This adsorbent can be recycled and reused at least six times with stable iodine adsorption. These findings were attributed to the homogenous monolayer adsorption of the iodide on the surface due to the presence of catechol and amine groups in the PP/PDA membrane. This study proposes an efficient adsorbent for iodine removal.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	PERGAMON-ELSEVIER SCIENCE LTD
dc.relation.ispartof	Chemosphere
dc.relation.isbasedon	10.1016/j.chemosphere.2020.126079
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Environmental Sciences
dc.subject.classification	Meteorology & Atmospheric Sciences
dc.subject.mesh	Iodine
dc.subject.mesh	Polypropylenes
dc.subject.mesh	Indoles
dc.subject.mesh	Polymers
dc.subject.mesh	Membranes, Artificial
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Spectrum Analysis
dc.subject.mesh	Temperature
dc.subject.mesh	Kinetics
dc.subject.mesh	Adsorption
dc.subject.mesh	Hydrogen-Ion Concentration
dc.subject.mesh	Polymerization
dc.subject.mesh	Iodine
dc.subject.mesh	Polypropylenes
dc.subject.mesh	Indoles
dc.subject.mesh	Polymers
dc.subject.mesh	Membranes, Artificial
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Spectrum Analysis
dc.subject.mesh	Temperature
dc.subject.mesh	Kinetics
dc.subject.mesh	Adsorption
dc.subject.mesh	Hydrogen-Ion Concentration
dc.subject.mesh	Polymerization
dc.subject.mesh	Adsorption
dc.subject.mesh	Hydrogen-Ion Concentration
dc.subject.mesh	Indoles
dc.subject.mesh	Iodine
dc.subject.mesh	Kinetics
dc.subject.mesh	Membranes, Artificial
dc.subject.mesh	Polymerization
dc.subject.mesh	Polymers
dc.subject.mesh	Polypropylenes
dc.subject.mesh	Spectrum Analysis
dc.subject.mesh	Temperature
dc.subject.mesh	Water Pollutants, Chemical
dc.title	Surface modification of polypropylene membrane for the removal of iodine using polydopamine chemistry.
dc.type	Journal Article
utslib.citation.volume	249
utslib.location.activity	England
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - CHT - Health Technologies
pubs.organisational-group	/University of Technology Sydney/Strength - IBMD - Initiative for Biomedical Devices
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Biomedical Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2021-03-08T05:06:37Z
pubs.publication-status	Published
pubs.volume	249

Abstract:

The development of stable and effective iodine removal systems would be highly desirable in addressing environmental issues relevant to water contamination. In the present research, a novel iodine adsorbent was synthesized by self-polymerization of dopamine (PDA) onto inert polypropylene (PP) membrane. This PP/PDA membrane was thoroughly characterized and its susrface propeties was analyzed by various analytical techniques indcluding field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM), attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), Brunauer-Emmett-Teller (BET) and Barrett-Joyner-Halenda (BJH), contact angle, and surface free energy measurement. The PP/PDA membranes were subsequently used for batchwise removal of iodine at different temperatures (25-70 °C), pH (2-7), and surface areas (1-10 cm2) to understand the underlying adsorption phenomena and to estimate the membrane capacity for iodine uptake. The increase in temperature and pH both led to higher adsorption of iodine. The present approach showed a removal efficiency of over 75% for iodine using 10 cm2 PP/PDA membrane (18.87 m2 g-1) within 2 h at moderate temperatures (∼50 °C) and pH > 4, about 15 fold compared to the PP control membrane. The adsorption kinetics and isotherms were well fitted to the pseudo-second-order kinetic and Langmuir isotherm models (R2 > 0.99). This adsorbent can be recycled and reused at least six times with stable iodine adsorption. These findings were attributed to the homogenous monolayer adsorption of the iodide on the surface due to the presence of catechol and amine groups in the PP/PDA membrane. This study proposes an efficient adsorbent for iodine removal.

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

http://hdl.handle.net/10453/146916