Download or read book Microwave Solution Combustion synthesis of Visible lightresponsive Photocatalyst for degradation of Reactive turquoise Blue (RB21) dye written by RAHUL JARARIYA and published by Blue Rose Publishers. This book was released on 2022-11-08 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Currently, colour removal dye degradation from synthetic wastewater of RB21 dye using photocatalysis with numerous spinel catalysts created in different methods. The reactive turquoise blue (RB21) dye, which belongs to the phthalocyanine group and has a strong azo link and a Cu2+ metal complex, is a very stable molecule that is difficult to degrade. Textile, paper, and leather sectors all employ reactive dyes. Spinel ferrites are oxides with the general formula AB2O4, where A and B are rare earth, alkali metal, and transition metal cations. Researchers have used spinel catalysts in photocatalytic degradation technology to combat wastewater pollution caused by dyes. The present research is focused on the creation of Magnesium and Cobalt ferrites spinel catalysts for the breakdown of RB21 dye. The most efficient photocatalyst was chosen, and the catalyst dosage, pH, dye concentration, reactor temperature, irradiation time, and other parameters were optimized. In the present work spinel catalysts (CoFe2O4, MgFe2O4, Mg0.5Co0.5Fe2O4, and Ni0.5Co0.5Fe2O4) were prepared by different methods. The operating conditions for spinel synthesis were observed at 146˚C commencing combustion of spinel ferrites. The experiments were performed under varying light sources like a 700W microwave system, and a Visible-Light photocatalytic reactor. The photocatalytic activity was carried out using a light source (two 9W LED bulbs, Halonix) and stirring the sample (400 rpm, 25°C).