Adsorption of fexofenadine and diphenhydramine on dehydrated and activated carbons from date palm leaflets

El Said I. El-Shafey; Haider A.J. Al-Lawati; Atka Y. Al-Hussaini

doi:10.1080/02757540.2014.894986

Adsorption of fexofenadine and diphenhydramine on dehydrated and activated carbons from date palm leaflets

El Said I. El-Shafey^*, Haider A.J. Al-Lawati, Atka Y. Al-Hussaini

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

Dehydrated carbon (DC) was prepared from date palm leaflets via sulfuric acid treatment at (Formula presented.) C in the presence of air. Acidified DC was converted to activated carbon (AC) at (Formula presented.) C under nitrogen atmosphere. DC shows low surface area (48 m² g⁻¹), whereas activated carbon possesses high surface area (405 m² g⁻¹). Both carbons were tested for the adsorption of fexofenadine (FEX) and diphenhydramine (DPH) at different initial pH, concentration and temperature. Maximum adsorption took place at pH 4.0 for FEX and pH 8.0 for DPH. Adsorption kinetics was found to follow well pseudo second-order kinetic model with increased adsorption as temperature increased within the range of 25– (Formula presented.) C. Activation energy, E_a, was 12–17.5 kJ mol⁻¹ indicating physical adsorption of both drugs. Drug uptake was found to increase with temperature rise in the range of 25–45°C. Thermodynamic parameters showed that the adsorption of drugs is spontaneous and endothermic in nature with physical adsorption dominating the removal processes. Despite having very low surface area, DC shows competitive adsorption capability for AC. Drug desorption from loaded carbons showed better performance from DC than from AC. The effect of the presence of KCl on adsorption of FEX and DPH was also studied.

Original language	English
Pages (from-to)	765-783
Number of pages	19
Journal	Chemistry and Ecology
Volume	30
Issue number	8
DOIs	https://doi.org/10.1080/02757540.2014.894986
Publication status	Published - Nov 17 2014
Externally published	Yes

Keywords

activated
adsorption
dehydrated
diphenhydramine
fexofenadine
sulfuric

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Ecology
General Environmental Science
General Earth and Planetary Sciences

Access to Document

10.1080/02757540.2014.894986

Cite this

@article{5cfddb8b3d124caca59077e994af347b,

title = "Adsorption of fexofenadine and diphenhydramine on dehydrated and activated carbons from date palm leaflets",

abstract = "Dehydrated carbon (DC) was prepared from date palm leaflets via sulfuric acid treatment at (Formula presented.) C in the presence of air. Acidified DC was converted to activated carbon (AC) at (Formula presented.) C under nitrogen atmosphere. DC shows low surface area (48 m2 g−1), whereas activated carbon possesses high surface area (405 m2 g−1). Both carbons were tested for the adsorption of fexofenadine (FEX) and diphenhydramine (DPH) at different initial pH, concentration and temperature. Maximum adsorption took place at pH 4.0 for FEX and pH 8.0 for DPH. Adsorption kinetics was found to follow well pseudo second-order kinetic model with increased adsorption as temperature increased within the range of 25– (Formula presented.) C. Activation energy, Ea, was 12–17.5 kJ mol−1 indicating physical adsorption of both drugs. Drug uptake was found to increase with temperature rise in the range of 25–45°C. Thermodynamic parameters showed that the adsorption of drugs is spontaneous and endothermic in nature with physical adsorption dominating the removal processes. Despite having very low surface area, DC shows competitive adsorption capability for AC. Drug desorption from loaded carbons showed better performance from DC than from AC. The effect of the presence of KCl on adsorption of FEX and DPH was also studied.",

keywords = "activated, adsorption, dehydrated, diphenhydramine, fexofenadine, sulfuric",

author = "El-Shafey, {El Said I.} and Al-Lawati, {Haider A.J.} and Al-Hussaini, {Atka Y.}",

note = "Publisher Copyright: {\textcopyright} 2014, {\textcopyright} 2014 Taylor & Francis.",

year = "2014",

month = nov,

day = "17",

doi = "10.1080/02757540.2014.894986",

language = "English",

volume = "30",

pages = "765--783",

journal = "Chemistry and Ecology",

issn = "0275-7540",

publisher = "Taylor and Francis Ltd.",

number = "8",

}

TY - JOUR

T1 - Adsorption of fexofenadine and diphenhydramine on dehydrated and activated carbons from date palm leaflets

AU - El-Shafey, El Said I.

AU - Al-Lawati, Haider A.J.

AU - Al-Hussaini, Atka Y.

PY - 2014/11/17

Y1 - 2014/11/17

N2 - Dehydrated carbon (DC) was prepared from date palm leaflets via sulfuric acid treatment at (Formula presented.) C in the presence of air. Acidified DC was converted to activated carbon (AC) at (Formula presented.) C under nitrogen atmosphere. DC shows low surface area (48 m2 g−1), whereas activated carbon possesses high surface area (405 m2 g−1). Both carbons were tested for the adsorption of fexofenadine (FEX) and diphenhydramine (DPH) at different initial pH, concentration and temperature. Maximum adsorption took place at pH 4.0 for FEX and pH 8.0 for DPH. Adsorption kinetics was found to follow well pseudo second-order kinetic model with increased adsorption as temperature increased within the range of 25– (Formula presented.) C. Activation energy, Ea, was 12–17.5 kJ mol−1 indicating physical adsorption of both drugs. Drug uptake was found to increase with temperature rise in the range of 25–45°C. Thermodynamic parameters showed that the adsorption of drugs is spontaneous and endothermic in nature with physical adsorption dominating the removal processes. Despite having very low surface area, DC shows competitive adsorption capability for AC. Drug desorption from loaded carbons showed better performance from DC than from AC. The effect of the presence of KCl on adsorption of FEX and DPH was also studied.

AB - Dehydrated carbon (DC) was prepared from date palm leaflets via sulfuric acid treatment at (Formula presented.) C in the presence of air. Acidified DC was converted to activated carbon (AC) at (Formula presented.) C under nitrogen atmosphere. DC shows low surface area (48 m2 g−1), whereas activated carbon possesses high surface area (405 m2 g−1). Both carbons were tested for the adsorption of fexofenadine (FEX) and diphenhydramine (DPH) at different initial pH, concentration and temperature. Maximum adsorption took place at pH 4.0 for FEX and pH 8.0 for DPH. Adsorption kinetics was found to follow well pseudo second-order kinetic model with increased adsorption as temperature increased within the range of 25– (Formula presented.) C. Activation energy, Ea, was 12–17.5 kJ mol−1 indicating physical adsorption of both drugs. Drug uptake was found to increase with temperature rise in the range of 25–45°C. Thermodynamic parameters showed that the adsorption of drugs is spontaneous and endothermic in nature with physical adsorption dominating the removal processes. Despite having very low surface area, DC shows competitive adsorption capability for AC. Drug desorption from loaded carbons showed better performance from DC than from AC. The effect of the presence of KCl on adsorption of FEX and DPH was also studied.

KW - activated

KW - adsorption

KW - dehydrated

KW - diphenhydramine

KW - fexofenadine

KW - sulfuric

UR - http://www.scopus.com/inward/record.url?scp=84921029572&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84921029572&partnerID=8YFLogxK

U2 - 10.1080/02757540.2014.894986

DO - 10.1080/02757540.2014.894986

M3 - Article

AN - SCOPUS:84921029572

SN - 0275-7540

VL - 30

SP - 765

EP - 783

JO - Chemistry and Ecology

JF - Chemistry and Ecology

IS - 8

ER -

Adsorption of fexofenadine and diphenhydramine on dehydrated and activated carbons from date palm leaflets

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this