ADSORPTION OF REMAZOL BRILLANT BLUE R FROM AQUATIC SOLUTION USING NATURAL ADSORBENT (Pistachio Hull)

Abstract

This study examines that adsorption of Remazol Brillant Blue R (RBBR) from aquatic solution was studied using pistachio hull (PH) as an adsorbent. The removal efficiency of pistachio hull was studied as a function of, pH, initial dye concentration, adsorbent dose and time via batch method at room temperature. Langmuir and Freundlich Isotherms applied to obtained data from experiments. The correlation coefficient values shown that the data fit the Langmuir Isotherm (R²=0.9989) compare to Freundlich Isotherm (R²=0.7825). Maximum adsorption capacity was observed as 16.739mg/g. Thermodynamic parameters also studied. The value of Gibbs Free Energy, (ΔG=2.696kJ/mol) is positive. This value is indicated that the adsorption was not a spontaneous one. According to the experimental data, pistachio hull can be used as an appropriate, no cost and easy obtainable adsorbent for the removal of Remazol Brillant Blue R dye.

Keywords

• Langmuir
• Remazol Brillant Blue R
• SEM
• Pistachio Hull
• pH

ADSORPTION OF REMAZOL BRILLANT BLUE R FROM AQUATIC SOLUTION USING NATURAL ADSORBENT (Pistachio Hull)

Abstract

This study examines that adsorption of Remazol Brillant Blue R (RBBR) from aquatic solution was studied using pistachio hull (PH) as an adsorbent. The removal efficiency of pistachio hull was studied as a function of, pH, initial dye concentration, adsorbent dose and time via batch method at room temperature. Langmuir and Freundlich Isotherms applied to obtained data from experiments. The correlation coefficient values shown that the data fit the Langmuir Isotherm (R2=0.9989) compare to Freundlich Isotherm (R2=0.7825). Maximum adsorption capacity was observed as 16.739mg/g. Thermodynamic parameters also studied. The value of Gibbs Free Energy, (ΔG=2.696kJ/mol) is positive. This value is indicated that the adsorption was not a spontaneous one. According to the experimental data, pistachio hull can be used as an appropriate, no cost and easy obtainable adsorbent for the removal of Remazol Brillant Blue R dye.

Keywords

• Remazol Brillant Blue R
• Langmuir
• SEM
• Pistachio Hull
• pH

References

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