Photochemical treatment of As(III) with α-Fe 2O 3 synthesized from Jarosite Waste - Details

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Abstract：

Endeavoring　to　mitigate　and　remedy　Arsenic　(As)　in　groundwater,　we　developed　a　one-step　process　for　As(iii)　oxidation　and　subsequent　adsorption　by　using　α-Fe　2O　3　under　UV　irradiation.　The　α-Fe　2O　3　with　high　surface　area　was　successfully　prepared　through　a　mild　hydrothermal　reaction　using　Jarosite　waste　as　precursor.　During　the　treatment　of　As(iii)　in　aqueous　solution,　the　as-obtained　α-Fe　2O　3　can　release　ferric　ions　stimulated　by　UV　irradiation.　This　led　to　the　effective　oxidation　of　As(iii)　to　As(v)　which　is　further　adsorbed　on　α-Fe　2O　3,　realizing　the　removal　of　As　from　water.　This　simple　and　efficient　route　may　be　potential　for　the　remediation　of　polluted　water　containing　As　ions.　©　2012　The　Royal　Society　of　Chemistry.

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[ 1 ] [Wang, J.]State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University, Fuzhou 3500002, China
[ 2 ] [Yuan, R.]State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University, Fuzhou 3500002, China
[ 3 ] [Xie, L.]State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University, Fuzhou 3500002, China
[ 4 ] [Tian, Q.]State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University, Fuzhou 3500002, China
[ 5 ] [Zhu, S.]State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University, Fuzhou 3500002, China
[ 6 ] [Hu, Y.]State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University, Fuzhou 3500002, China
[ 7 ] [Liu, P.]State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University, Fuzhou 3500002, China
[ 8 ] [Shi, X.]Research Institute of Chemical Defence, Beijing 100191, China
[ 9 ] [Wang, D.]Research Institute of Chemical Defence, Beijing 100191, China

Reprint 's Address：

[Liu, P.]State Key Laboratory Breeding Base of Photocatalysis, Research Institute of Photocatalysis, Fuzhou University, Fuzhou 3500002, China

Email：

liuping@fzu.edu.cn

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RSC Advances

ISSN： 2046-2069

Year： 2012

Issue： 3

Volume： 2

Page： 1112-1118

2 . 5 6 2

JCR@2012

3 . 9 0 0

JCR@2023

JCR Journal Grade：2

CAS Journal Grade：3

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ESI Highly Cited Papers on the List： 0 Unfold All

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