Decolorization of Reactive Blue 220 aqueous solution using fungal synthesized Co3O4 nanoparticles
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Date
2019
Journal Title
Journal ISSN
Volume Title
Publisher
IWA Publishing 12 Caxton Street London SW1H 0QS
Abstract
In this work, the photocatalytic activity of the biosynthesized cobalt oxide (Co<inf>3</inf>O<inf>4</inf>) nanoparticle (NP) is investigated using a textile dye Reactive Blue 220 (RB220) and decolorization % was monitored using UV–Vis spectrophotometer. The photocatalytic activity has been observed maximum at alkaline pH of 9, NP dosage of 250 mg/L, and reaction time of 270 min. In the presence of UV light irradiation, a maximum dye concentration of 10 mg/L was treated effectively using 150 mg/L NP, and 67% decolorization was achieved. Reaction kinetics has been analyzed, and the reaction followed the pseudo kinetics model with an activation energy of -484 kJ mol-1. © IWA Publishing 2019
Description
Keywords
Activation energy, Alkalinity, Cobalt compounds, Enzyme kinetics, Kinetics, Nanoparticles, Photocatalysis, Photocatalytic activity, Synthesis (chemical), Cobalt oxides, Decolorization, Dye concentration, Pseudo-kinetics, RB220, Reactive blues, Textile dyes, UV-light irradiation, Reaction kinetics, activation energy, cobalt, dye, nanoparticle, photolysis, pollutant removal, reaction kinetics, textile industry, ultraviolet radiation
Citation
Journal of Water Supply: Research and Technology - AQUA, 2019, 68, 8, pp. 675-686