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  Sorption profile of Hg(II) onto Mixed Phase of Copper Sulphide and Copper Sulphate

Yoong, Y. L. A., Yap, P. L., Kutty, M. G., Timpe, O., Behrens, M., Abd Hamid, S. B., et al. (2012). Sorption profile of Hg(II) onto Mixed Phase of Copper Sulphide and Copper Sulphate. Advanced Materials Research, 356-360, 537-546. doi:10.4028/www.scientific.net/AMR.356-360.537.

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 Urheber:
Yoong , Yow Loo Au1, Autor
Yap, Pei Lay1, Autor
Kutty, Muralithran G.1, Autor
Timpe, Olaf2, Autor           
Behrens, Malte2, Autor           
Abd Hamid, Sharifah Bee1, Autor
Schlögl, Robert2, Autor           
Affiliations:
11COMBICAT Laboratory, Nanotechnology & Catalysis Research Centre (NANOCEN), University of Malaya, Lembah Pantai, Kuala Lumpur 50603, Malaysia , ou_persistent22              
2Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              

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Schlagwörter: Mercury; Copper Sulphide; Surface Oxidized Copper Sulphide; Performance
 Zusammenfassung: The use of surface oxidized covellite (CuS), namely mixed phase copper sulphide (CuS and CuSO4) was studied for the removal of mercury from aqueous solution under the effect of various reaction parameters (pH, time, Hg(II) concentration). From batch sorption studies, the equilibrium data revealed that the sorption behaviour of Hg(II) onto mixed phase copper sulphide follows well with Langmuir isotherm and the maximum sorption capacity (Qmax) determined ≈ 400mg Hg(II) /g of sorbent. Meanwhile, all the unreacted and reacted mixed phase copper sulphides were also characterized by Powder XRD, SEM and XPS techniques. The results indicated that the sorption of Hg(II) onto mixed phase copper sulphide occurs initially through the dissolution of surface oxidized CuSO4 layer. After that, the surface complexation product formed and sorbed onto the surface of CuS. These outcomes suggest the potential ability of CuS in removing Hg(II) even if the CuS layer is being surrounded by oxidized layer of CuSO4.

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Sprache(n): eng - English
 Datum: 2011-072011-10-072012
 Publikationsstatus: Erschienen
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 Ort, Verlag, Ausgabe: -
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 Art der Begutachtung: Expertenbegutachtung
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Titel: Advanced Materials Research
  Kurztitel : Adv. Mater. Res.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Trans Tech Publications
Seiten: - Band / Heft: 356-360 Artikelnummer: - Start- / Endseite: 537 - 546 Identifikator: ISSN: 1022-6680
CoNE: https://pure.mpg.de/cone/journals/resource/1662-8985