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Thermal modification of activated carbon surface chemistry improves its capacit...
Pereira, Luciana; Pereira, Ricardo; Pereira, M. F. R.; Van der Zee, F. P.; Cervantes, F. J.; Alves, M. M.The surface chemistry of a commercial AC (AC0) was selectively modified, without changing significantly its textural properties, by chemical oxidation with HNO3 (ACHNO3 ) and O2 (ACO2 ), and thermal treatments under H2 (ACH2) or N2 (ACN2 ) flow. The effect of modified AC on anaerobic chemical dye reduction was assayed with sulphide at different pH values 5, 7 and 9. Four dyes were tested: Acid Orange 7, Reactiv...
Data: 2010
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Origem: RepositóriUM - Universidade do Minho
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