Modified PVA-alginate encapsulated photocatalyst ferro photo gels for CR(vi) reduction
In this study magnetic separable photocatalyst beads containing maghemite nanoparticles (?-Fe2O3) in polyvinyl alcohol (PVA) polymer were prepared and used in the reduction of Cr(VI) to Cr(III) in an aqueous solution under sunlight. The unique superparamagnetic property of the photocatalyst contribu...
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| Format: | Article |
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Elsevier Ltd.
2012
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| _version_ | 1796859111779860480 |
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| author | Idris, Ani Misrana, Effaliza Hassan, Nursia Abd. Jalilb, Aishah Seng, Chan Eng |
| author_facet | Idris, Ani Misrana, Effaliza Hassan, Nursia Abd. Jalilb, Aishah Seng, Chan Eng |
| author_sort | Idris, Ani |
| collection | ePrints |
| description | In this study magnetic separable photocatalyst beads containing maghemite nanoparticles (?-Fe2O3) in polyvinyl alcohol (PVA) polymer were prepared and used in the reduction of Cr(VI) to Cr(III) in an aqueous solution under sunlight. The unique superparamagnetic property of the photocatalyst contributed by the ?-Fe2O3 and robust property of PVA polymer allow the magnetic beads to be recovered easily and reused for at least 7 times without washing. The concentration of ?-Fe2O3 was varied from 8% (v/v) to 27% (v/v) and the results revealed that the beads with 8% (v/v) ?-Fe2O3 exhibited the best performance where Cr(VI) was reduced to Cr(III) in only 30 min under sunlight. The use of the PVA has improved the bead properties and life cycle of beads which is in line with sustainable practices. |
| first_indexed | 2024-03-05T19:22:21Z |
| format | Article |
| id | utm.eprints-47245 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T19:22:21Z |
| publishDate | 2012 |
| publisher | Elsevier Ltd. |
| record_format | dspace |
| spelling | utm.eprints-472452020-02-29T13:07:31Z http://eprints.utm.my/47245/ Modified PVA-alginate encapsulated photocatalyst ferro photo gels for CR(vi) reduction Idris, Ani Misrana, Effaliza Hassan, Nursia Abd. Jalilb, Aishah Seng, Chan Eng TP Chemical technology In this study magnetic separable photocatalyst beads containing maghemite nanoparticles (?-Fe2O3) in polyvinyl alcohol (PVA) polymer were prepared and used in the reduction of Cr(VI) to Cr(III) in an aqueous solution under sunlight. The unique superparamagnetic property of the photocatalyst contributed by the ?-Fe2O3 and robust property of PVA polymer allow the magnetic beads to be recovered easily and reused for at least 7 times without washing. The concentration of ?-Fe2O3 was varied from 8% (v/v) to 27% (v/v) and the results revealed that the beads with 8% (v/v) ?-Fe2O3 exhibited the best performance where Cr(VI) was reduced to Cr(III) in only 30 min under sunlight. The use of the PVA has improved the bead properties and life cycle of beads which is in line with sustainable practices. Elsevier Ltd. 2012 Article PeerReviewed Idris, Ani and Misrana, Effaliza and Hassan, Nursia and Abd. Jalilb, Aishah and Seng, Chan Eng (2012) Modified PVA-alginate encapsulated photocatalyst ferro photo gels for CR(vi) reduction. Journal of Hazardous Materials, 227-22 (15). pp. 309-316. ISSN 0304-3894 https://dx.doi.org/10.1016/j.jhazmat.2012.05.065 DOI:10.1016/j.jhazmat.2012.05.065 |
| spellingShingle | TP Chemical technology Idris, Ani Misrana, Effaliza Hassan, Nursia Abd. Jalilb, Aishah Seng, Chan Eng Modified PVA-alginate encapsulated photocatalyst ferro photo gels for CR(vi) reduction |
| title | Modified PVA-alginate encapsulated photocatalyst ferro photo gels for CR(vi) reduction |
| title_full | Modified PVA-alginate encapsulated photocatalyst ferro photo gels for CR(vi) reduction |
| title_fullStr | Modified PVA-alginate encapsulated photocatalyst ferro photo gels for CR(vi) reduction |
| title_full_unstemmed | Modified PVA-alginate encapsulated photocatalyst ferro photo gels for CR(vi) reduction |
| title_short | Modified PVA-alginate encapsulated photocatalyst ferro photo gels for CR(vi) reduction |
| title_sort | modified pva alginate encapsulated photocatalyst ferro photo gels for cr vi reduction |
| topic | TP Chemical technology |
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