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

Year 2018, Volume: 13 Issue: 2, 103 - 113, 21.04.2018

Serpil Savcı , Mutlu Yalvaç , Zeynep Karaman

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

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