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Information Seminar Paper

Title

ADSORPTION OF BRILLIANT GREEN FROM AQUEOUS SOLUTION BY MAGNETIC NANOPARTICLES OF FE3O4

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Abstract

 DYE AND DYE STUFFS ARE EXTENSIVELY USED IN VARIOUS AREAS SUCH AS TEXTILE, PLASTIC, FOOD, COSMETIC, CARPET AND PAPER INDUSTRIES. WASTEWATERS OF THESE INDUSTRIES CONTAIN DYE WITH METALS, SALTS, AND OTHER CHEMICALS WHICH MAY BE TOXIC TO AQUATIC ENVIRONMENT. HENCE, THE PRESENCE OF DYES IN WASTEWATERS IS A MAJOR ENVIRONMENTAL PROBLEM AS THEY ARE GENERALLY RESISTANT TO DEGRADATION BY BIOLOGICAL TREATMENT METHODS [1]. MAGNETIC NANOPARTICLE OF FE3O4 WAS USED FOR ADSORPTION OF BRILLIANT GREEN FROM AQUEOUS SOLUTION. THE MEAN SIZE AND THE SURFACE MORPHOLOGY OF THE NANOPARTICLES WERE CHARACTERIZED BY TEM AND XRD TECHNIQUES. ADSORPTION STUDIES OF BRILLIANT GREEN WERE PERFORMED UNDER DIFFERENT EXPERIMENTAL CONDITIONS, SUCH AS NANOPARTICLES AMOUNT, DYE CONCENTRATION, PH OF THE SOLUTION, IONIC STRENGTH, AND CONTACT TIME. EXPERIMENTAL RESULTS INDICATED THAT FE3O4 HAD ADSORBED MORE THAN 96% OF DYE UNDER OPTIMUM CONDITION. THE ISOTHERM EVALUATIONS REVEALED THAT THE LANGMUIR MODEL ATTAINED BETTER FITS TO THE EQUILIBRIUM DATA THAN FREUNDLICH MODEL. MAXIMUM ADSORPTION CAPACITY OF FE3O4 NANOPARTICLES WAS 117.6 MG G-1. THE APPLICABILITY OF TWO KINETIC MODELS INCLUDING PSEUDO-FIRST ORDER AND PSEUDO-SECOND ORDER MODELS WAS ESTIMATED. ADSORPTION PROCESS FOLLOWS TO PSEUDO-SECOND-ORDER KINETIC MODEL. ADSORPTION PROCESS WAS EXOTHERMIC. THE CHANGES OF ENTHALPY (DH) WAS DETERMINED TO BE -483.04 KJ MOL-1.THE CALCULATED VALUES OF DG AT STUDIED TEMPERATURES INDICATE THAT THE ADSORPTION PROCESS IS SPONTANEOUS [2]. THE DYE WAS DESORBED FROM NANOPARTICLES BY ALKALINE SOLUTION OF 1 MOL L-1 OF NACL AND ADSORBENT WAS REUSED.

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    APA: Copy

    KAMRAN, S., & HAJIANI, M.. (2014). ADSORPTION OF BRILLIANT GREEN FROM AQUEOUS SOLUTION BY MAGNETIC NANOPARTICLES OF FE3O4. IRANIAN SEMINAR OF ANALYTICAL CHEMISTRY. SID. https://sid.ir/paper/910737/en

    Vancouver: Copy

    KAMRAN S., HAJIANI M.. ADSORPTION OF BRILLIANT GREEN FROM AQUEOUS SOLUTION BY MAGNETIC NANOPARTICLES OF FE3O4. 2014. Available from: https://sid.ir/paper/910737/en

    IEEE: Copy

    S. KAMRAN, and M. HAJIANI, “ADSORPTION OF BRILLIANT GREEN FROM AQUEOUS SOLUTION BY MAGNETIC NANOPARTICLES OF FE3O4,” presented at the IRANIAN SEMINAR OF ANALYTICAL CHEMISTRY. 2014, [Online]. Available: https://sid.ir/paper/910737/en

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