Improved arsenic(III) adsorption by Al2O3 nanoparticles and H2O2: Evidence of oxidation to arsenic(V) from X-ray absorption spectroscopy.

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Fältnamn	Indikatorer	Metadata
000		03857naa a2200337 4500
001		oai:lup.lub.lu.se:6720df47-2dcc-4c1a-93a4-db652ea2113f
003		SwePub
008		160401s2014 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://lup.lub.lu.se/record/45812362 URI
024	7	a https://doi.org/10.1016/j.chemosphere.2014.04.0972 DOI
040		a (SwePub)lu
041		a engb eng
042		9 SwePub
072	7	a art2 swepub-publicationtype
072	7	a ref2 swepub-contenttype
100	1	a Önnby, Lindau Lund University,Lunds universitet,Bioteknik,Centrum för tillämpade biovetenskaper,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Biotechnology,Center for Applied Life Sciences,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH4 aut0 (Swepub:lu)biot-lno
245	1 0	a Improved arsenic(III) adsorption by Al2O3 nanoparticles and H2O2: Evidence of oxidation to arsenic(V) from X-ray absorption spectroscopy.
264	1	b Elsevier BV,c 2014
520		a We have investigated the oxidation of inorganic As(III) with H2O2 catalysed by Al2O3, using X-ray absorption near-edge structure and extended X-ray absorption fine structure spectroscopy. The effects of different reaction conditions (pH, time and initial H2O2 concentration) were also studied as were the kinetics of the oxidation reaction. We demonstrated that As(III) was oxidized to As(V) in the presence of H2O2 and Al2O3. Furthermore, all arsenic species found on the Al2O3 surface were in the As(V) state. The presence of both Al2O3 and H2O2 was necessary for oxidation of As(III) to take place within the period of time studied. The oxidation kinetics indicate a mechanism where reversible As(III) binding to the alumina surface is followed by irreversible oxidation by H2O2 leading to strongly bound As(V). Results from this study indicate that there is a surface-catalysed oxidation of As(III) on Al2O3 by H2O2, a reaction that can take place in nature and can be of help in the development of novel treatment systems for As(III) removal.
650	7	a NATURVETENSKAPx Geovetenskap och miljövetenskapx Miljövetenskap0 (SwePub)105022 hsv//swe
650	7	a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Environmental Sciences0 (SwePub)105022 hsv//eng
700	1	a Suresh, Prashanthu Lund University,Lunds universitet,Bioteknik,Centrum för tillämpade biovetenskaper,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Biotechnology,Center for Applied Life Sciences,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH4 aut0 (Swepub:lu)biot-psh
700	1	a Sigfridsson Clauss, Kajsau Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory4 aut0 (Swepub:lu)biok-ksi
700	1	a Wendt, Olau Lund University,Lunds universitet,Centrum för analys och syntes,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Centre for Analysis and Synthesis,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH4 aut0 (Swepub:lu)ook1-owe
700	1	a Carlson, Stefanu Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory4 aut0 (Swepub:lu)inor-sca
700	1	a Kirsebom, Haraldu Lund University,Lunds universitet,Bioteknik,Centrum för tillämpade biovetenskaper,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Biotechnology,Center for Applied Life Sciences,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH4 aut0 (Swepub:lu)med-hko
710	2	a Bioteknikb Centrum för tillämpade biovetenskaper4 org
773	0	t Chemosphered : Elsevier BVg 113, s. 151-157q 113<151-157x 1879-1298x 0045-6535
856	4	u http://dx.doi.org/10.1016/j.chemosphere.2014.04.097y FULLTEXT
856	4 8	u https://lup.lub.lu.se/record/4581236
856	4 8	u https://doi.org/10.1016/j.chemosphere.2014.04.097

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Av författaren/redakt...: Önnby, Linda; Suresh, Prashant ...; Sigfridsson Clau ...; Wendt, Ola; Carlson, Stefan; Kirsebom, Harald

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