Decolourization by PVP stabilized Fe-Ni nanoparticles of Reactive Black 5 dye

Add time:08/26/2019    Source:sciencedirect.com

Nanoscale Fe-Ni bimetallic particles with Polyvinyl pyrrolidone (PVP) as a stabilizer were synthesized for dye decolourization and characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM) and nano particle size analyser. Analysis of variance (ANOVA) for decolourization was done by the central composite design (CCD) with response surface methodology (RSM). Three operational factors concentration of nanoparticles, concentration of dye and pH were selected for design of experiments. The influence of reaction duration, alkali and salt addition on dye decolourization was also studied. Dye degraded product and breaking of chromophoric group was analysed by gas chromatography–mass spectrometry (GCMS) and FT-IR analysis. The dye decolourization of was 97.89% obtained with reduction in COD and BOD value was achieved with negligible generation of the sludge.

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