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Use of biogenic sulfide for the synthesis of CuS nanocrystals and nanocomposites
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Advisor(s)
Abstract(s)
During the metabolism of organic matter (CH2O), sulfate-reducing bacteria (SRB) use sulfate
as the terminal electron acceptor, resulting in the production of H2S. This biologically
generated sulfide, in the presence of metal ions, can be used for metal precipitation (Bhagat et
al., 2004). The use of SRB in bioremediation processes, namely, in the reduction of highcontent
sulfate and metal effluents, is well documented (Costa and Duarte, 2005; Garcia et al.,
2001). Nevertheless, the process generates an excess of sulfide and the elimination of the
sulfide in excess and disposal of the metal sulfides produced are also problems that need to be
carefully addressed. Copper monosulfide (CuS) has gained considerable attention in material
science due to its excellent potential in catalysis (Mallick et al., 2007), optical functionality
(Liz-Marzan, 2006) and electronic functionalities (Kamat, 2002).
Description
Keywords
Nanocomposites
Citation
Pinto da Costa, João; Girão, Ana Violeta; Lourenço, J.P.; Monteiro, O.C.; Trindade, Tito; Costa, C.S.Use of biogenic sulfide for the synthesis of CuS nanocrystals and nanocomposites, Trabalho apresentado em WasteEng12 – 4th International Conference in Engineering for Waste and Biomass Valorisation, In Book of abstracts of WasteEng12 – 4th International Conference in Engineering for Waste and Biomass Valorisation, Porto, 2012.