Seminar Paper

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Information Seminar Paper

Title

DECOLORIZATION OF AN AZO DYE FROM AQUEOUS SOLUTION USING IRON OXIDE/SODIUM ALGINATE/GOX NANOCOMPOSITE BY COMBINED PHOTO-FENTON-LIKE WITH ENZYME

Pages

 Start Page | End Page

Keywords

GOX 
IRON OXIDE (α FE2O3) 

Abstract

 SYNTHETIC DYES ARE WIDELY USED IN MANY INDUSTRIES, SUCH AS TEXTILE DYEING, LEATHER TANNING, PLASTIC AND PAPER PRODUCTION AND PRINTING INDUSTRIES. THEY ARE MAJOR SOURCES OF ENVIRONMENTAL CONTAMINATION, ESPECIALLY IN WATER POLLUTION [1]. AN ADDITIONAL DIFFICULTY IS THAT THESE DYES ARE NOT EASILY DEGRADED BY COMMON WASTEWATER TREATMENT SYSTEMS. THEREFORE, THE EMPLOYMENT OF THESE DYES MUST BE MANAGED AND TREATED BEFORE BEING RELEASED INTO THE ENVIRONMENT. [2, 3].BIOLOGICAL PROCESSES HAVE BEEN CONSIDERED BY MANY RESEARCHERS BECAUSE THEY HAVE A LOT OF BENEFITS. ENZYMES HAVE A LOT OF APPLICATIONS IN THE CHEMICAL INDUSTRIES AS BIOLOGICAL CATALYSTS, SUCH AS, REMOVING DYES FROM TEXTILE WASTEWATER. THE GLUCOSE OXIDASE (GOX) ENZYME IS A BIOLOGICAL CATALYST WHICH GRADUALLY PRODUCES HYDROGEN PEROXIDE DURING OXIDATION OF GLUCOSE IN THE PRESENCE OF O2. THE IN SITU GENERATED HYDROGEN PEROXIDE CAN BE USED FOR REMOVING POLLUTIONS. THE HYDROGEN PEROXIDE AND FE2+ ARE USED IN FENTON PROCESS AS PRODUCER OF •OH.BEING DANGEROUS, INSTABLE AND CORROSIVE ARE DISADVANTAGES OF HYDROGEN PEROXIDE. THEREFORE, WE CAN USE THE IN SITU PRODUCED HYDROGEN PEROXIDE TO OVERCOME THESE PROBLEMS.IN THIS PROJECT, WE INVESTIGATED THE REMOVAL OF A REACTIVE RED 66 BY IRON OXIDE (A-FE2O3) / SODIUM ALGINATE / GLUCOSE OXIDASE NANOCOMPOSITE USING COMBINED METHOD OF PHOTO FENTONLIKE AND ENZYME. USING THIS COMPOSITE FE3+IS RELEASED GRADUALLY TO THE REACTION MEDIA AND PROVIDES FE3+FOR FENTON-LIKE PROCESS AND AS MENTIONED H2O2 FROM ENZYMATIC REACTION OF GLUCOSE AND O2. THE EFFICIENCY OF DECOLORIZATION WAS ACHIEVED 70% AFTER 120 MIN UNDER UV LAMP.

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