| Literature DB >> 22682796 |
Ani Idris1, Effaliza Misran, Nursia Hassan, Aishah Abd Jalil, Chan Eng Seng.
Abstract
In this study magnetic separable photocatalyst beads containing maghemite nanoparticles (γ-Fe(2)O(3)) 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 γ-Fe(2)O(3) 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 γ-Fe(2)O(3) was varied from 8% (v/v) to 27% (v/v) and the results revealed that the beads with 8% (v/v) γ-Fe(2)O(3) 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.Entities:
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Year: 2012 PMID： 22682796 DOI： 10.1016/j.jhazmat.2012.05.065
Source DB: PubMed Journal: J Hazard Mater ISSN： 0304-3894 Impact factor: 10.588