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• W4224143847 startingPage "132996" @default.
• W4224143847 abstract "• Preparation of silver nanoparticles by single step chemical method using sodium dodecyl sulfate (SDS) as stabilizing agent • Reduction of toxic dye, methyl orange (MO) in presence of Sd@Ag-NPs catalyst using sodium borohydride as reducing agent • Simultaneous reduction of MO and Rhodamine b (Rh-B) dyes in presence of Sd@Ag-NPs catalyst • Catalytic reduction of MO followed first order kinetic • Value of apparent rate constant was increased with increase of catalyst dose in reaction mixture Sodium dodecyl sulfate (SDS) was employed as a stabilizing agent for the preparation of Ag-NPs while using AgNO 3 salt as a source of silver ions and sodium borohydride as a reducing agent in an aqueous medium. Synthesized sodium dodecyl sulfate stabilized silver nanoparticles (Sd@Ag-NPs) were extensively characterized by FTIR, UV–Vis spectroscopy, SEM, XRD and DLS analysis. After that, Sd@Ag-NPs particles were employed as an active catalyst for the reduction of methyl orange (MO) and Rhodamine B (Rh-B) dyes. At first, reduction of MO was carried out in the presence of a catalyst and an excessive amount of NaBH 4 in water medium. Reduction of MO was completed in 21 min while the value of apparent rate constant (k app ) was found as 0.385 min −1 . Reduction of Rh-B was completed in 15 min with the value of k app found as 0.131 min −1 . Controlled reactions were also performed for the reduction of MO in the absence of catalyst and in the absence of NaBH 4 to check the kinetic feasibility of the reaction as well as to check either the decrease in absorbance value was due to the adsorptive action of Sd@Ag-NPs or its working as a catalyst. It was concluded that MO reduction was completed in feasible time in the presence of catalyst. The activity of 9 months old catalyst was slightly decreased as compared to the freshly prepared catalyst for the reduction of MO under same reaction conditions. It was also concluded that Sd@Ag-NPs catalyst successfully degraded the MO dye in the presence of another toxic dye Rh-B in a feasible time. It indicates that our reported Sd@Ag-NPs catalyst can simultaneously reduce the mixture of dyes." @default.
• W4224143847 created "2022-04-20" @default.
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• W4224143847 date "2022-08-01" @default.
• W4224143847 modified "2023-10-07" @default.
• W4224143847 title "Investigation of catalytic potential of sodium dodecyl sulfate stabilized silver nanoparticles for the degradation of methyl orange dye" @default.
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• W4224143847 doi "https://doi.org/10.1016/j.molstruc.2022.132996" @default.
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