Natural clinoptilolite from Zlatokop deposit, Serbia, was activated by microwave irradiations (10 min, 550 W) and its adsorptive efficiency for removal of crystal violet (CV) dye from aqueous solution was investigated. The process variables were specified by response surface method and the central composite design (CCD). Percentage of dye removal as a function of two numeric factors (the amount of zeolite and the concentration of crystal violet) with five values (rotatibility factor alpha = 0.41) and one numeric factor (contact or agitation time) with three values (rotatibility factor alpha = 1.00) at dynamic ambient conditions and pH = 6 was tested. The optimal conditions for 91.99 % decolorization were predicted to be 2 g of the zeolite in 100 ml of CV aqueous solution with concentration of 250 mg/l, and contact time of 678 s. The model was validated experimentally. Two isotherm models-Langmuir type 2 and Freundlich could describe the adsorption process with high correlation to exper...imental data. The calculated adsorbent capacity from the CCD (12.625 mg/g) showed a good agreement with the adsorption capacity obtained by Langmuir-2 isotherm (13.477 mg/g) and with pseudo-second-order kinetic model (12.404 mg/g).
TY - JOUR
AU - Buntić, Aneta
AU - Pavlović, Marija
AU - Mihajlovski, Katarina
AU - Ranđelović, Milica
AU - Rajić, Nevenka
AU - Antonović, Dušan
AU - Šiler-Marinković, Slavica
AU - Dimitrijević-Branković, Suzana
PY - 2014
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2793
AB - Natural clinoptilolite from Zlatokop deposit, Serbia, was activated by microwave irradiations (10 min, 550 W) and its adsorptive efficiency for removal of crystal violet (CV) dye from aqueous solution was investigated. The process variables were specified by response surface method and the central composite design (CCD). Percentage of dye removal as a function of two numeric factors (the amount of zeolite and the concentration of crystal violet) with five values (rotatibility factor alpha = 0.41) and one numeric factor (contact or agitation time) with three values (rotatibility factor alpha = 1.00) at dynamic ambient conditions and pH = 6 was tested. The optimal conditions for 91.99 % decolorization were predicted to be 2 g of the zeolite in 100 ml of CV aqueous solution with concentration of 250 mg/l, and contact time of 678 s. The model was validated experimentally. Two isotherm models-Langmuir type 2 and Freundlich could describe the adsorption process with high correlation to experimental data. The calculated adsorbent capacity from the CCD (12.625 mg/g) showed a good agreement with the adsorption capacity obtained by Langmuir-2 isotherm (13.477 mg/g) and with pseudo-second-order kinetic model (12.404 mg/g).
PB - Springer International Publishing Ag, Cham
T2 - Water Air and Soil Pollution
T1 - Removal of a Cationic Dye from Aqueous Solution by Microwave Activated Clinoptilolite-Response Surface Methodology Approach
IS - 1
VL - 225
DO - 10.1007/s11270-013-1816-6
ER -
@article{
author = "Buntić, Aneta and Pavlović, Marija and Mihajlovski, Katarina and Ranđelović, Milica and Rajić, Nevenka and Antonović, Dušan and Šiler-Marinković, Slavica and Dimitrijević-Branković, Suzana",
year = "2014",
abstract = "Natural clinoptilolite from Zlatokop deposit, Serbia, was activated by microwave irradiations (10 min, 550 W) and its adsorptive efficiency for removal of crystal violet (CV) dye from aqueous solution was investigated. The process variables were specified by response surface method and the central composite design (CCD). Percentage of dye removal as a function of two numeric factors (the amount of zeolite and the concentration of crystal violet) with five values (rotatibility factor alpha = 0.41) and one numeric factor (contact or agitation time) with three values (rotatibility factor alpha = 1.00) at dynamic ambient conditions and pH = 6 was tested. The optimal conditions for 91.99 % decolorization were predicted to be 2 g of the zeolite in 100 ml of CV aqueous solution with concentration of 250 mg/l, and contact time of 678 s. The model was validated experimentally. Two isotherm models-Langmuir type 2 and Freundlich could describe the adsorption process with high correlation to experimental data. The calculated adsorbent capacity from the CCD (12.625 mg/g) showed a good agreement with the adsorption capacity obtained by Langmuir-2 isotherm (13.477 mg/g) and with pseudo-second-order kinetic model (12.404 mg/g).",
publisher = "Springer International Publishing Ag, Cham",
journal = "Water Air and Soil Pollution",
title = "Removal of a Cationic Dye from Aqueous Solution by Microwave Activated Clinoptilolite-Response Surface Methodology Approach",
number = "1",
volume = "225",
doi = "10.1007/s11270-013-1816-6"
}
Buntić, A., Pavlović, M., Mihajlovski, K., Ranđelović, M., Rajić, N., Antonović, D., Šiler-Marinković, S.,& Dimitrijević-Branković, S.. (2014). Removal of a Cationic Dye from Aqueous Solution by Microwave Activated Clinoptilolite-Response Surface Methodology Approach. in Water Air and Soil Pollution
Springer International Publishing Ag, Cham., 225(1).
https://doi.org/10.1007/s11270-013-1816-6
Buntić A, Pavlović M, Mihajlovski K, Ranđelović M, Rajić N, Antonović D, Šiler-Marinković S, Dimitrijević-Branković S. Removal of a Cationic Dye from Aqueous Solution by Microwave Activated Clinoptilolite-Response Surface Methodology Approach. in Water Air and Soil Pollution. 2014;225(1).
doi:10.1007/s11270-013-1816-6 .
Buntić, Aneta, Pavlović, Marija, Mihajlovski, Katarina, Ranđelović, Milica, Rajić, Nevenka, Antonović, Dušan, Šiler-Marinković, Slavica, Dimitrijević-Branković, Suzana, "Removal of a Cationic Dye from Aqueous Solution by Microwave Activated Clinoptilolite-Response Surface Methodology Approach" in Water Air and Soil Pollution, 225, no. 1 (2014),
https://doi.org/10.1007/s11270-013-1816-6 . .
