Photoreduction of Pb(II) ions from aqueous solution by titania polyvinylalcohol–alginate beads

Knowing the photocatalytic reduction of heavy metal ions in waters is of interest and putting this to practical options for improving the environment performance. The purpose of this study was to assess effectiveness of the titania polyvinylalcohol–alginate beads (TPVAABs) as photocatalyst in the re...

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Main Authors: Majidnia, Z., Fulazzaky, M. A.
Format: Article
Published: Taiwan Institute of Chemical Engineers 2016
Subjects:
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author Majidnia, Z.
Fulazzaky, M. A.
author_facet Majidnia, Z.
Fulazzaky, M. A.
author_sort Majidnia, Z.
collection ePrints
description Knowing the photocatalytic reduction of heavy metal ions in waters is of interest and putting this to practical options for improving the environment performance. The purpose of this study was to assess effectiveness of the titania polyvinylalcohol–alginate beads (TPVAABs) as photocatalyst in the removal of Pb(II) ions from aqueous solution, compared to the maghemite polyvinylalcohol–alginate beads (MPVAABs). This study performed the tests of photoreduction of Pb(II) ions by both TPVAABs and TPVAABs in batch experiments. The results showed that the use of TPVAABs could be effective to remove Pb(II) ions from aqueous solution with 98% efficiency after 135 min of reaction time under sunlight irradiation, compared with 98.3% efficiency for the use of MPVAABs. The desorption of Pb(II) ions for the first cycle of adsorption/desorption appeared to be optimal for the TPVAABs recovery. The photocatalytic reduction of Pb(II) ions by TPVAABs can be used repeatedly more than seven cycles of adsorption/desorption. The present study reported photoreduction treatment system to remove Pb(II) ions from aqueous solution by TPVAABs, as well as by MPVAABs, represents a rapid and reliable method to strengthening physicochemical process of treating metal-contaminated wastewater in the future.
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spelling utm.eprints-721302017-11-22T12:07:36Z http://eprints.utm.my/72130/ Photoreduction of Pb(II) ions from aqueous solution by titania polyvinylalcohol–alginate beads Majidnia, Z. Fulazzaky, M. A. TA Engineering (General). Civil engineering (General) Knowing the photocatalytic reduction of heavy metal ions in waters is of interest and putting this to practical options for improving the environment performance. The purpose of this study was to assess effectiveness of the titania polyvinylalcohol–alginate beads (TPVAABs) as photocatalyst in the removal of Pb(II) ions from aqueous solution, compared to the maghemite polyvinylalcohol–alginate beads (MPVAABs). This study performed the tests of photoreduction of Pb(II) ions by both TPVAABs and TPVAABs in batch experiments. The results showed that the use of TPVAABs could be effective to remove Pb(II) ions from aqueous solution with 98% efficiency after 135 min of reaction time under sunlight irradiation, compared with 98.3% efficiency for the use of MPVAABs. The desorption of Pb(II) ions for the first cycle of adsorption/desorption appeared to be optimal for the TPVAABs recovery. The photocatalytic reduction of Pb(II) ions by TPVAABs can be used repeatedly more than seven cycles of adsorption/desorption. The present study reported photoreduction treatment system to remove Pb(II) ions from aqueous solution by TPVAABs, as well as by MPVAABs, represents a rapid and reliable method to strengthening physicochemical process of treating metal-contaminated wastewater in the future. Taiwan Institute of Chemical Engineers 2016 Article PeerReviewed Majidnia, Z. and Fulazzaky, M. A. (2016) Photoreduction of Pb(II) ions from aqueous solution by titania polyvinylalcohol–alginate beads. Journal of the Taiwan Institute of Chemical Engineers, 66 . pp. 88-96. ISSN 1876-1070 https://www.scopus.com/inward/record.uri?eid=2-s2.0-84988924167&doi=10.1016%2fj.jtice.2016.05.024&partnerID=40&md5=f47cf02578f6dbe956e7e0f00e9e964c
spellingShingle TA Engineering (General). Civil engineering (General)
Majidnia, Z.
Fulazzaky, M. A.
Photoreduction of Pb(II) ions from aqueous solution by titania polyvinylalcohol–alginate beads
title Photoreduction of Pb(II) ions from aqueous solution by titania polyvinylalcohol–alginate beads
title_full Photoreduction of Pb(II) ions from aqueous solution by titania polyvinylalcohol–alginate beads
title_fullStr Photoreduction of Pb(II) ions from aqueous solution by titania polyvinylalcohol–alginate beads
title_full_unstemmed Photoreduction of Pb(II) ions from aqueous solution by titania polyvinylalcohol–alginate beads
title_short Photoreduction of Pb(II) ions from aqueous solution by titania polyvinylalcohol–alginate beads
title_sort photoreduction of pb ii ions from aqueous solution by titania polyvinylalcohol alginate beads
topic TA Engineering (General). Civil engineering (General)
work_keys_str_mv AT majidniaz photoreductionofpbiiionsfromaqueoussolutionbytitaniapolyvinylalcoholalginatebeads
AT fulazzakyma photoreductionofpbiiionsfromaqueoussolutionbytitaniapolyvinylalcoholalginatebeads