REMOVAL REACTIVE RED 222 DYE FROM AQUEOUS SOLUTIONS ONTO LOWCOST BIOSORBENT TEA RESIDUE

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GHYASI MORADI BORIHE; MOHSEN SARRAFI AMIRHOSSEIN; KONOZ ELAHEH

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Seminar Paper

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Seminar: IRANIAN CHEMISTRY CONGRESS
Year:2013 | Issue:16

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Title

REMOVAL REACTIVE RED 222 DYE FROM AQUEOUS SOLUTIONS ONTO LOWCOST BIOSORBENT TEA RESIDUE

Author(s)

GHYASI MORADI BORIHE | MOHSEN SARRAFI AMIRHOSSEIN | KONOZ ELAHEH | Issue Writer Certificate

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Abstract

THIS STUDY EXPLORED THE FEASIBILITY OF USING RESIDUE TEA AS BIOSORBENT AND LOW-COST ADSORBENT FOR THE REMOVAL OF REACTIVE RED222(RR222) UNDER DIFFERENT EXPERIMENTAL CONDITIONS. IN OUR EXPERIMENTS, THE BATCH SORPTION IS STUDIED WITH RESPECT TO SOLUTE CONCENTRATION (25-50-75-100 MG/L), CONTACT TIME (0.25- 60 MIN) ADSORBENT DOSE (0.5-2 G) AND SOLUTION TEMPERATURE (20-50OC).OPTIMIZED PH WAS EQUAL2. TO INCREASE THE ADSORPTION OF THE DYE ONTO THE TEA RESIDUE WAS MODIFIED WITH A CATIONIC SURFACTANT CETYL TRIMETHYL AMMONIUM BROMIDE (CTAB). DYE CONCENTRATIONS WERE MEASURED USING UV/VIS SPECTROPHOTOMETER TO OBTAIN THE MAXIMUM ABSORBANCE AT 519 NM. THE LANGMUIR, FREUNDLICH, TEMKIN AND DUBININ-RADUSHKEVICH ISOTHERM ADSORPTION MODELS WERE APPLIED TO EXPERIMENTAL EQUILIBRIUM DATA AT DIFFERENT SOLUTION TEMPERATURES. EVALUATION OF KINETIC MODELS APPLIED TO THE ADSORPTION OF REACTIVE RED222 DYE ONTO TEA RESIDUE MODIFIED BY (CTAB) WAS EVALUATED FOR THE PSEUDO-FIRST-ORDER PSEUDO SECOND-ORDER MODELS. THE EXPERIMENTAL DATA FITTED VERY WELL THE PSEUDO SECOND- ORDER KINETIC MODEL. THE THERMODYNAMICS PARAMETERS SUCH AS GIBB’S FREE ENERGY (DGO), ENTHALPY (DHO) AND ENTROPY (DSO) WERE ALSO CALCULATED .ISOSTERIC HEAT OF ADSORPTION WAS DETERMINATED. SURFACE CHARACTERISTICS AND MEASUREMENT OF THE ADSORBENT SURFACE AREA WAS CARRIED OUT WITH SCANNING ELECTRONIC MICROSCOPE (SEM) AND VIA N2 GAS ADSORPTION WITH BET ISOTHERM. THE RESULTS INDICATE THAT TEA RESIDUE COULD BE EMPLOYED AS BIO SORBENT LOW-COST ADSORBENT FOR THE REMOVAL OF DYES FROM AQUEOUS SOLUTIONS.

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APA: Copy

GHYASI MORADI, BORIHE, MOHSEN SARRAFI, AMIRHOSSEIN, & KONOZ, ELAHEH. (2013). REMOVAL REACTIVE RED 222 DYE FROM AQUEOUS SOLUTIONS ONTO LOWCOST BIOSORBENT TEA RESIDUE. IRANIAN CHEMISTRY CONGRESS. SID. https://sid.ir/paper/909665/en

Vancouver: Copy

GHYASI MORADI BORIHE, MOHSEN SARRAFI AMIRHOSSEIN, KONOZ ELAHEH. REMOVAL REACTIVE RED 222 DYE FROM AQUEOUS SOLUTIONS ONTO LOWCOST BIOSORBENT TEA RESIDUE. 2013. Available from: https://sid.ir/paper/909665/en

IEEE: Copy

BORIHE GHYASI MORADI, AMIRHOSSEIN MOHSEN SARRAFI, and ELAHEH KONOZ, “REMOVAL REACTIVE RED 222 DYE FROM AQUEOUS SOLUTIONS ONTO LOWCOST BIOSORBENT TEA RESIDUE,” presented at the IRANIAN CHEMISTRY CONGRESS. 2013, [Online]. Available: https://sid.ir/paper/909665/en

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