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Title

INVESTIGATION THE KINETIC REACTION VARIATION OF THE METHYL ORANGE DECOMPOSITION USING DECORATED MULTI-WALLED CARBON NANOTUBES WITH ZNO NANOPARTICLES, INFLUENCE OF NANOPARTICLE CONTENT

Writers

ABBASI SEDIGHEH

Pages

 Start Page 113 | End Page 122

Abstract

 Background: As for the enhancement of the various industries such as loom industry, the reduction of the pollutants in the sewerage of these industries is focused by protection office of environment.Therefore, the main aim of this research is the elimination of the methyl orange from water using photocatalytic procedure and ZNO NANOPARTICLES.Methods: The KINETIC of the photocatalytic oxidation reaction of methyl orange using ZNO NANOPARTICLES and HYBRIDs containing decorated Multi Wall Carbon Nanotubes (MWCNT) with ZNO NANOPARTICLES is investigated. The influence of irradiation time (from 5 to 30 min) and the concentration of the photo catalysts (0.1, 0.2 and 0.5 %wt) on the KINETIC reaction of methyl orange decomposition is studied.Results: The KINETIC reaction of methyl orange decomposition using ZNO NANOPARTICLES and synthesized HYBRIDs is pseudo first order. The reaction rate constant using ZNO NANOPARTICLES is lower than that of studied HYBRIDs. This means that the reaction rate of methyl orange decomposition using ZNO NANOPARTICLES is low. Meanwhile, according to the results it can observe that the attachment of the ZNO NANOPARTICLESon the outer surface of MWCNTs leads to the enhancement of the reaction rate. Also, the reaction rate of pollutants decomposition increases with respect to the attached ZNO NANOPARTICLES on the outer surface of MWCNTs.Conclusion: Based on the observed results, the introducing and enhancement of the ZNO NANOPARTICLES on the outer surface of MWCNTs leads to the augmentation of the methyl orange decomposition rate. Therefore, according to this technique the decomposition of the pollutants accelerates.

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