Optimization, kinetic, equilibrium and thermodynamics parameters for congo red adsorption from aqueous phase by untreated chicken feathers

E. Cervantes-González, H. Martínez-Gutiérrez, C. L. Reyes-García

Research output: Contribution to journalArticleResearchpeer-review

Abstract

© 2017 Desalination Publications. All rights reserved. The study of the adsorption of Congo red dye, a diazo carcinogenic compound, onto untreated chicken feathers was conducted in batch conditions. The optimization of the adsorption was evaluated using a Box-Behnken experimental design with three independent variables. It was observed that the best adsorption conditions were at pH 5, 30°C and using a semi-ground size of chicken feathers. The Langmuir, Freundlich, Temkin and Dubinin-Radushkevich models were used to analyze the experimental data, the adsorption equilibrium was well described by the Temkin isotherm adsorption model and the maximum adsorption capacity of chicken feathers obtained by the Langmuir model was 97.8 mg g–1 at 30°C. The results of the thermodynamic parameters showed the spontaneous nature, the feasibility of adsorption and the exothermic process due to the negative Gibbs energy value and the enthalpy value. FT-IR analysis confirmed the adsorption of Congo red on chicken feathers, showing that carboxyl and amino protonated groups from adsorbent were involved in the adsorption process.
Original languageAmerican English
Pages (from-to)291-298
Number of pages261
JournalDesalination and Water Treatment
DOIs
StatePublished - 1 Mar 2017

Fingerprint

feather
thermodynamics
Thermodynamics
adsorption
Adsorption
kinetics
Kinetics
parameter
Gibbs free energy
Desalination
Adsorption isotherms
Design of experiments
Adsorbents
enthalpy
Enthalpy
desalination
experimental design
Dyes
dye
isotherm

Cite this

@article{ee0471d187854deb9ab2c1148c3c3487,
title = "Optimization, kinetic, equilibrium and thermodynamics parameters for congo red adsorption from aqueous phase by untreated chicken feathers",
abstract = "{\circledC} 2017 Desalination Publications. All rights reserved. The study of the adsorption of Congo red dye, a diazo carcinogenic compound, onto untreated chicken feathers was conducted in batch conditions. The optimization of the adsorption was evaluated using a Box-Behnken experimental design with three independent variables. It was observed that the best adsorption conditions were at pH 5, 30°C and using a semi-ground size of chicken feathers. The Langmuir, Freundlich, Temkin and Dubinin-Radushkevich models were used to analyze the experimental data, the adsorption equilibrium was well described by the Temkin isotherm adsorption model and the maximum adsorption capacity of chicken feathers obtained by the Langmuir model was 97.8 mg g–1 at 30°C. The results of the thermodynamic parameters showed the spontaneous nature, the feasibility of adsorption and the exothermic process due to the negative Gibbs energy value and the enthalpy value. FT-IR analysis confirmed the adsorption of Congo red on chicken feathers, showing that carboxyl and amino protonated groups from adsorbent were involved in the adsorption process.",
author = "E. Cervantes-Gonz{\'a}lez and H. Mart{\'i}nez-Guti{\'e}rrez and Reyes-Garc{\'i}a, {C. L.}",
year = "2017",
month = "3",
day = "1",
doi = "10.5004/dwt.2017.20224",
language = "American English",
pages = "291--298",
journal = "Desalination and Water Treatment",
issn = "1944-3994",
publisher = "Desalination Publications",

}

Optimization, kinetic, equilibrium and thermodynamics parameters for congo red adsorption from aqueous phase by untreated chicken feathers. / Cervantes-González, E.; Martínez-Gutiérrez, H.; Reyes-García, C. L.

In: Desalination and Water Treatment, 01.03.2017, p. 291-298.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Optimization, kinetic, equilibrium and thermodynamics parameters for congo red adsorption from aqueous phase by untreated chicken feathers

AU - Cervantes-González, E.

AU - Martínez-Gutiérrez, H.

AU - Reyes-García, C. L.

PY - 2017/3/1

Y1 - 2017/3/1

N2 - © 2017 Desalination Publications. All rights reserved. The study of the adsorption of Congo red dye, a diazo carcinogenic compound, onto untreated chicken feathers was conducted in batch conditions. The optimization of the adsorption was evaluated using a Box-Behnken experimental design with three independent variables. It was observed that the best adsorption conditions were at pH 5, 30°C and using a semi-ground size of chicken feathers. The Langmuir, Freundlich, Temkin and Dubinin-Radushkevich models were used to analyze the experimental data, the adsorption equilibrium was well described by the Temkin isotherm adsorption model and the maximum adsorption capacity of chicken feathers obtained by the Langmuir model was 97.8 mg g–1 at 30°C. The results of the thermodynamic parameters showed the spontaneous nature, the feasibility of adsorption and the exothermic process due to the negative Gibbs energy value and the enthalpy value. FT-IR analysis confirmed the adsorption of Congo red on chicken feathers, showing that carboxyl and amino protonated groups from adsorbent were involved in the adsorption process.

AB - © 2017 Desalination Publications. All rights reserved. The study of the adsorption of Congo red dye, a diazo carcinogenic compound, onto untreated chicken feathers was conducted in batch conditions. The optimization of the adsorption was evaluated using a Box-Behnken experimental design with three independent variables. It was observed that the best adsorption conditions were at pH 5, 30°C and using a semi-ground size of chicken feathers. The Langmuir, Freundlich, Temkin and Dubinin-Radushkevich models were used to analyze the experimental data, the adsorption equilibrium was well described by the Temkin isotherm adsorption model and the maximum adsorption capacity of chicken feathers obtained by the Langmuir model was 97.8 mg g–1 at 30°C. The results of the thermodynamic parameters showed the spontaneous nature, the feasibility of adsorption and the exothermic process due to the negative Gibbs energy value and the enthalpy value. FT-IR analysis confirmed the adsorption of Congo red on chicken feathers, showing that carboxyl and amino protonated groups from adsorbent were involved in the adsorption process.

UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85020215688&origin=inward

UR - https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85020215688&origin=inward

U2 - 10.5004/dwt.2017.20224

DO - 10.5004/dwt.2017.20224

M3 - Article

SP - 291

EP - 298

JO - Desalination and Water Treatment

JF - Desalination and Water Treatment

SN - 1944-3994

ER -