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dc.contributor.authorOlajire, A. A.
dc.contributor.authorOlajide, A. J.
dc.date.accessioned2018-07-12T08:51:11Z
dc.date.available2018-07-12T08:51:11Z
dc.date.issued2014-04
dc.identifier.citationJ Phys Chem Biophys 2014, Vol 4(2): 136en_US
dc.identifier.issn2161-0398
dc.identifier.uriDOI: 10.4172/2161-0398.1000136
dc.identifier.urihttp://hdl.handle.net/123456789/1836
dc.description.abstractThe kinetics of decolorization of methylene blue (MB+) with sodium sulphite in aqueous media was investigated over the temperature range 20-40°C. The kinetic studies were carried out as a function of different variables like concentration, pH, and temperature on rate of decolorization. The rate of the reaction was found to be [H+] dependent and first order in both [MB+] and reductant. The empirical rate law conforms to the equation: Where K1 is the protonation constant, and k2 and k3 are overall pseudo-second order rate constants for the decolorization of MB+ with 2 3 SO − . The rate was found to increase linearly with temperature. The rate of decolorization decreased after addition of Co(II), Ni(II), Mn(II) and Zn(II), but increased after addition of Fe(II) and Cu(II). The activation parameters (Ea, ΔG#, ΔH# and ΔS#) of the decolorization reaction of MB+ with 2 3 SO − in absence and in presence of Fe(II) and Cu(II) were calculated.en_US
dc.language.isoenen_US
dc.subjectMethylene blueen_US
dc.subjectSodium sulphiteen_US
dc.subjectMetal activationen_US
dc.subjectKineticsen_US
dc.subjectDecolorizationen_US
dc.titleKinetic Study of Decolorization of Methylene Blue with Sodium Sulphite in Aqueous Media: Influence of Transition Metal Ionsen_US
dc.typeArticleen_US


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