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Dergiler / International Journal of Chemistry and Technology / 2017 / Volume: 1 Issue: 1

Kinetics, thermodynamics and isotherm studies of malachite green adsorption by modified orange peel

Leyla Kule0000-0002-2222-9186
Bilal Acemioğlu0000-0002-0728-2747
Evrim Baran0000-0003-3551-8451
Sayfa
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Yayın Tarihi
2017-11-27
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FT-IR and SEM analyses were also recorded before and after the adsorption.

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Amaç & Hipotez:Kinetics, thermodynamics and isotherm studies o f malachite green (MG) adsorption by orange peel (OP) modified w i t h ethanol, calcium chloride and sodium hydroxide were performed.
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Temel Bulgular & Veri:T h e a m ou n ts o f MG adsorb ed onto OP increased w ith increasing c o n tact t i m e, i n itial d y e c on c e n trati o n , s o l u ti o n t e m p e r a t ur e, and pH .
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Sonuç & Katkı:FT-IR and SEM analyses were also recorded before and after the adsorption.
🔬Tür:Modelleme & Sayısal Simülasyon
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:: Adsorption kinetics · thermodynamics · malachite green

Abstract

Kinetics, thermodynamics and isotherm studies o f malachite green (MG) adsorption by orange peel (OP) modified w i t h ethanol, calcium chloride and sodium hydroxide were performed. E f f e c ts o f i n iti a l dye c o n c e n tr a ti o n , t e m p e r at u r e a n d p H o n the a d s orp ti o n w e r e studied at the different c o n tact t i m es . T h e a m ou n ts o f MG adsorb ed onto OP increased w ith increasing c o n tact t i m e, i n itial d y e c on c e n trati o n , s o l u ti o n t e m p e r a t ur e, and pH . M a x i m u m dye adsorption w as about 92.90 % u n d e r all the e x p e r i m e n tal c o n d iti o ns . Percent desorption of MG from the surface of OP was lower in the alkali and HCl solutions and higher in an acetone-water mixture of 50%. Adsorption kinetics was best fit the pseudo-second order model with correlation coefficients of 0.99 and 1 for the concentrations studied. Thermodynamic results indicated a spontaneous adsorption. A d s orp ti o n i s o t h e r m obeyed t h e La n g m u ir m od el. The Langmuir adsorption capacity was determined as 14.55 mg g -1 . FT-IR and SEM analyses were also recorded before and after the adsorption.

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Bu Makaleye Atıf Yap

Kule, L., Acemioğlu, B., Baran, E. (2017). Kinetics, thermodynamics and isotherm studies of malachite green adsorption by modified orange peel. International Journal of Chemistry and Technology, Volume: 1 Issue: 1. https://doi.org/10.32571/ijct.344732

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