Magnetic hybrid TiO 2 /Alg/FeNPs triads for the efficient removal of methylene blue from water

A new adsorbent material with combined adsorption, photocatalytic, and magnetic properties has been successfully synthesized and tested for the efficient dye removal from methylene blue (MB) contaminated water. A facile non-thermal method was applied to synthesize a hybrid nanocomposite consisting...

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Main Authors:	Kanakaraju, Devagi, Nurfatyha Rusydah, bt Mohamad Shahdad, Lim, Ying-Chin, Pace, Andrea
Format:	Article
Published:	ScienceDirect 2018
Subjects:	QD Chemistry
Online Access:	http://ir.unimas.my/20730/ http://ir.unimas.my/20730/ http://ir.unimas.my/20730/

id	unimas-20730
recordtype	eprints
spelling	unimas-207302018-07-16T01:17:49Z http://ir.unimas.my/20730/ Magnetic hybrid TiO 2 /Alg/FeNPs triads for the efficient removal of methylene blue from water Kanakaraju, Devagi Nurfatyha Rusydah, bt Mohamad Shahdad Lim, Ying-Chin Pace, Andrea QD Chemistry A new adsorbent material with combined adsorption, photocatalytic, and magnetic properties has been successfully synthesized and tested for the efficient dye removal from methylene blue (MB) contaminated water. A facile non-thermal method was applied to synthesize a hybrid nanocomposite consisting of TiO2/calcium alginate (TiO/Alg) and magnetite (Fe3O4) nanoparticles (FeNPs). The potential of the adsorbent Alg as a barrier to prevent direct contact between the magnetic core and TiO2 was experimented by varying the synthesis conditions. The performance of four differently synthesized TiO2/Alg/FeNPs samples (TiO2/Alg/FeNPs-1, TiO2/Alg/ FeNPs-2, TiO2/Alg/FeNPs-3, and TiO2/Alg/FeNPs-4) was found to be fairly comparable and stable based on their efficiency in removing MB from aqueous solution due to the physico-chemical characterization (surface morphology, functional groups and elemental analysis) which supports the performance of TiO2/Alg/FeNPs. For the optimization study using the response surface methodology (RSM) with three factorial Box-Behnken experimental designs, TiO2/Alg/FeNPs-2 was selected as it exhibited the highest MB removal of 97.6% after 120 min under ultra violet irradiation (254 nm wavelength). Among the three independent variables studied (i.e., pH, contact time and initial MB concentration), the initial concentration of MB had significant effect towards the MB removal performance. A recycling study was performed, thus confirming the stability of TiO2/Alg/FeNPs-2 up to three cycles, with only a slight drop in the removal efficiency from 93.1% to 88.5%. The fabricated TiO2/Alg/ FeNPs nanocomposites could be a potential functional material for treating artificial dye laden wastewater such as in textile, cosmetic, and paper industries ScienceDirect 2018 Article PeerReviewed Kanakaraju, Devagi and Nurfatyha Rusydah, bt Mohamad Shahdad and Lim, Ying-Chin and Pace, Andrea (2018) Magnetic hybrid TiO 2 /Alg/FeNPs triads for the efficient removal of methylene blue from water. Sustainable Chemistry and Pharmacy, 8. pp. 50-62. ISSN 23525541 http://doi.org/10.1016/j.scp.2018.02.001 doi:10.1016/j.scp.2018.02.001
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Sarawak
building	UNIMAS Institutional Repository
collection	Online Access
topic	QD Chemistry
spellingShingle	QD Chemistry Kanakaraju, Devagi Nurfatyha Rusydah, bt Mohamad Shahdad Lim, Ying-Chin Pace, Andrea Magnetic hybrid TiO 2 /Alg/FeNPs triads for the efficient removal of methylene blue from water
description	A new adsorbent material with combined adsorption, photocatalytic, and magnetic properties has been successfully synthesized and tested for the efficient dye removal from methylene blue (MB) contaminated water. A facile non-thermal method was applied to synthesize a hybrid nanocomposite consisting of TiO2/calcium alginate (TiO/Alg) and magnetite (Fe3O4) nanoparticles (FeNPs). The potential of the adsorbent Alg as a barrier to prevent direct contact between the magnetic core and TiO2 was experimented by varying the synthesis conditions. The performance of four differently synthesized TiO2/Alg/FeNPs samples (TiO2/Alg/FeNPs-1, TiO2/Alg/ FeNPs-2, TiO2/Alg/FeNPs-3, and TiO2/Alg/FeNPs-4) was found to be fairly comparable and stable based on their efficiency in removing MB from aqueous solution due to the physico-chemical characterization (surface morphology, functional groups and elemental analysis) which supports the performance of TiO2/Alg/FeNPs. For the optimization study using the response surface methodology (RSM) with three factorial Box-Behnken experimental designs, TiO2/Alg/FeNPs-2 was selected as it exhibited the highest MB removal of 97.6% after 120 min under ultra violet irradiation (254 nm wavelength). Among the three independent variables studied (i.e., pH, contact time and initial MB concentration), the initial concentration of MB had significant effect towards the MB removal performance. A recycling study was performed, thus confirming the stability of TiO2/Alg/FeNPs-2 up to three cycles, with only a slight drop in the removal efficiency from 93.1% to 88.5%. The fabricated TiO2/Alg/ FeNPs nanocomposites could be a potential functional material for treating artificial dye laden wastewater such as in textile, cosmetic, and paper industries
format	Article
author	Kanakaraju, Devagi Nurfatyha Rusydah, bt Mohamad Shahdad Lim, Ying-Chin Pace, Andrea
author_facet	Kanakaraju, Devagi Nurfatyha Rusydah, bt Mohamad Shahdad Lim, Ying-Chin Pace, Andrea
author_sort	Kanakaraju, Devagi
title	Magnetic hybrid TiO 2 /Alg/FeNPs triads for the efficient removal of methylene blue from water
title_short	Magnetic hybrid TiO 2 /Alg/FeNPs triads for the efficient removal of methylene blue from water
title_full	Magnetic hybrid TiO 2 /Alg/FeNPs triads for the efficient removal of methylene blue from water
title_fullStr	Magnetic hybrid TiO 2 /Alg/FeNPs triads for the efficient removal of methylene blue from water
title_full_unstemmed	Magnetic hybrid TiO 2 /Alg/FeNPs triads for the efficient removal of methylene blue from water
title_sort	magnetic hybrid tio 2 /alg/fenps triads for the efficient removal of methylene blue from water
publisher	ScienceDirect
publishDate	2018
url	http://ir.unimas.my/20730/ http://ir.unimas.my/20730/ http://ir.unimas.my/20730/
first_indexed	2018-09-06T16:58:09Z
last_indexed	2018-09-06T16:58:09Z
_version_	1610878119717109760

Magnetic hybrid TiO 2 /Alg/FeNPs triads for the efficient removal of methylene blue from water

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