Photocatalytic Degradation of Alizarin Red-S by Fe-Co Nanoparticles Prepared By Chemical Co-precipitation Method

C.P Sawant,Chandrakant Vedu Nandre

doi:10.24297/jac.v11i9.2686

C.P Sawant, Chandrakant Vedu Nandre

Open Access

https://doi.org/10.24297/jac.v11i9.2686

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Abstract

In the present study photocatalytic degradation of hazardous water soluble alizarin red dye by using Fe-Co nanoparticles has been investigated. Fe-Co nanoparticles was synthesized by chemical co-precipitation method and characterized by TEM, SEM, EDAX and XRD. The photocatalytic degradation have been studied with the help of variety of parameters such as catalytic dose, dye concentration, pH, contact time and most important chemical oxygen demand. It was observed that The photocatalytic degradation of alizarin red dye by using Fe-Co nanoparticles was an effective ,economic, ecofriendly and faster mode of removing dye from an aqueous solution. The optimum condition for the degradation of the dye was 50 mg/L,pH 8.0, catalyst dose 60 mg/L and contact time 60 minutes. The kinetic studies also have been studied.

Highlights

Azo dyes are the largest group of the dyes used for dyeing cotton fabrics in the industry
In view of the above, we describe our procedure concerning the synthesis of Fe-Co nanoparticles by chemical coprecipitation method and characterization in first part
The effect of photocatalyst concentration on the photodegradation rate of the alizarin red dye was investigated by employing different concentration of Fe-Co nanoparticles varying from 0.1 to 1.0gL-1

Summary

Introduction

Azo dyes are the largest group of the dyes used for dyeing cotton fabrics in the industry. A necessary criterion for the use these dyes is that they must be highly stable in light and during washing They must be resistant to microbial attack. They are not readily degradable and are typically not removed from water by conventional chemical wastewater treatment systems. Azo dyes due to their hydrophilic property are not removed by chemical coagulation. Alizarin red is dark in color which is used for coloring all kind of natural fibers like wool, cotton and silk. It is used in paints, inks, plastics, leather and cosmetics. The technique has been widely employed for the photo mineralization of a large number of dyes such as methylene blue, direct and acid blue dyes, azo dyes and reactive black.

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