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Sorption of Pentachlorophenol from Aqueous Solution by Acid Activated Bentonite: A comparative study

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Last updated: 01 Jan 2025

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Abstract

Batch measurements were conducted to assess the adsorption performance of raw and acid-activated bentonite with various operating conditions, including pH (3-11), initial PCP concentration (30-1000 mg/l), contact time (10-180 min), and temperature (25-65 °C). Fourier Transform Infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and scanning electron microscopy were used to study the structure and morphology of bentonite. The adsorption isotherms in the system were described using the Langmuir and Freundlich models. The system's thermodynamic characteristics were also examined; including Gibbs free energy, enthalpy, and entropy of the adsorption processes. According to the thermodynamic analysis, the adsorption is exothermic. The kinetic of adsorption is best described by a pseudo-second-order expression than a first order model. The experiment results are compatible with the Freundlich equation

DOI

10.21608/ejchem.2022.143001.6255

Keywords

Adsorption, Bentonite, Kinetics, isotherms, pentachlorophenol

Authors

First Name

Nouhaila

Last Name

HADOUDI

MiddleName

-

Affiliation

Applied Chemistry Unit, FSTH, Abdelmalek Essaâdi University, Tetouan, Morocco

Email

nouhailahadoudi79@gmail.com

City

-

Orcid

-

First Name

Asmae

Last Name

CHARKI

MiddleName

-

Affiliation

Water and Environment Management Unit, LSA, ENSAH, Abdelmalek Essaâdi University, Tetouan, Morocco

Email

charki.asmae.ca@gmail.com

City

-

Orcid

-

First Name

Hossain

Last Name

Hossain EL OUARGHI

MiddleName

-

Affiliation

Water and Environment Management Unit, LSA, ENSAH, Abdelmalek Essaâdi University, Tetouan, Morocco

Email

elouarghi@uae.ac.ma

City

-

Orcid

-

First Name

Fouad

Last Name

MOURABIT

MiddleName

-

Affiliation

Applied Chemistry Unit, FSTH, Abdelmalek Essaâdi University, Tetouan, Morocco

Email

f.mourabit@uae.ac.ma

City

-

Orcid

-

First Name

Amin

Last Name

SALHI

MiddleName

-

Affiliation

Applied Chemistry Unit, FSTH, Abdelmalek Essaâdi University, Tetouan, Morocco

Email

a.salhi@uae.ac.ma

City

-

Orcid

-

First Name

Hassan

Last Name

AMHAMDI

MiddleName

-

Affiliation

Applied Chemistry Unit, FSTH, Abdelmalek Essaâdi University, Tetouan, Morocco

Email

h.amhamdi@uae.ac.ma

City

-

Orcid

-

First Name

M'hamed

Last Name

Ahari

MiddleName

-

Affiliation

Faculty of Science and Technology Al Houceima- Unversity Abdelmalek Essaadi, Morocco

Email

ahari.mhamed@gmail.com

City

-

Orcid

0000-0002-0457-5923

Volume

66

Article Issue

6

Related Issue

41553

Issue Date

2023-06-01

Receive Date

2022-06-07

Publish Date

2023-06-01

Page Start

353

Page End

361

Print ISSN

0449-2285

Online ISSN

2357-0245

Article File

EJCHEM_Volume 66_Issue 6_Pages 353-361.pdf

PDF . 1.2MB

Link

https://ejchem.journals.ekb.eg/article_262836.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=262836

Order

35

Type

Original Article

Type Code

297

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle

Sorption of Pentachlorophenol from Aqueous Solution by Acid Activated Bentonite: A comparative study

Details

Type

Article

Created At

30 Dec 2024