Investigation of boron adsorption by graphene oxide: equilibrium, kinetic, and thermodynamic studies

Mehmet Fatih Önen; Nalan Erdöl Aydin; Osman Eksik; Pelin Demirçivi; Gülhayat Nasun Saygili

doi:10.55730/1300-0527.3568

Investigation of boron adsorption by graphene oxide: equilibrium, kinetic, and thermodynamic studies

Mehmet Fatih Önen, Nalan Erdöl Aydin, Osman Eksik, Pelin Demirçivi, Gülhayat Nasun Saygili^*

^*Corresponding author for this work

Department of Chemical Engineering

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

Abstract

Graphene oxide, which has a great application in industry, is one of the promising carbonous materials. Modified Hummers method was applied to synthesize graphene oxide. Characterization techniques showed that pure graphene oxide was successfully obtained. Its adsorptive properties were investigated by boron adsorption. The results were demonstrated that boron adsorption on graphene oxide was a pH-dependent process and maximum adsorption was achieved at pH 6 (0.98 mg g^–1). Langmuir adsorption capacity was calculated as 3.92 mg g^–1 with R²= 0.99. The kinetic data brought to light that pseudosecond-order kinetic model was well described the experimental data (R²= 0.99), and according to thermodynamic parameters, boron adsorption has spontaneous and endothermic nature (ΔH^o=15.47 kJ mol^–1).

Original language	English
Pages (from-to)	656-666
Number of pages	11
Journal	Turkish Journal of Chemistry
Volume	47
Issue number	3
DOIs	https://doi.org/10.55730/1300-0527.3568
Publication status	Published - 2023

Bibliographical note

Publisher Copyright:
© TÜBİTAK.

Keywords

adsorption
boron
Graphene oxide
wastewater

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10.55730/1300-0527.3568

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title = "Investigation of boron adsorption by graphene oxide: equilibrium, kinetic, and thermodynamic studies",

abstract = "Graphene oxide, which has a great application in industry, is one of the promising carbonous materials. Modified Hummers method was applied to synthesize graphene oxide. Characterization techniques showed that pure graphene oxide was successfully obtained. Its adsorptive properties were investigated by boron adsorption. The results were demonstrated that boron adsorption on graphene oxide was a pH-dependent process and maximum adsorption was achieved at pH 6 (0.98 mg g–1). Langmuir adsorption capacity was calculated as 3.92 mg g–1 with R2= 0.99. The kinetic data brought to light that pseudosecond-order kinetic model was well described the experimental data (R2= 0.99), and according to thermodynamic parameters, boron adsorption has spontaneous and endothermic nature (ΔHo=15.47 kJ mol–1).",

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doi = "10.55730/1300-0527.3568",

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TY - JOUR

T1 - Investigation of boron adsorption by graphene oxide

T2 - equilibrium, kinetic, and thermodynamic studies

AU - Önen, Mehmet Fatih

AU - Erdöl Aydin, Nalan

AU - Eksik, Osman

AU - Demirçivi, Pelin

AU - Saygili, Gülhayat Nasun

N1 - Publisher Copyright: © TÜBİTAK.

PY - 2023

Y1 - 2023

N2 - Graphene oxide, which has a great application in industry, is one of the promising carbonous materials. Modified Hummers method was applied to synthesize graphene oxide. Characterization techniques showed that pure graphene oxide was successfully obtained. Its adsorptive properties were investigated by boron adsorption. The results were demonstrated that boron adsorption on graphene oxide was a pH-dependent process and maximum adsorption was achieved at pH 6 (0.98 mg g–1). Langmuir adsorption capacity was calculated as 3.92 mg g–1 with R2= 0.99. The kinetic data brought to light that pseudosecond-order kinetic model was well described the experimental data (R2= 0.99), and according to thermodynamic parameters, boron adsorption has spontaneous and endothermic nature (ΔHo=15.47 kJ mol–1).

AB - Graphene oxide, which has a great application in industry, is one of the promising carbonous materials. Modified Hummers method was applied to synthesize graphene oxide. Characterization techniques showed that pure graphene oxide was successfully obtained. Its adsorptive properties were investigated by boron adsorption. The results were demonstrated that boron adsorption on graphene oxide was a pH-dependent process and maximum adsorption was achieved at pH 6 (0.98 mg g–1). Langmuir adsorption capacity was calculated as 3.92 mg g–1 with R2= 0.99. The kinetic data brought to light that pseudosecond-order kinetic model was well described the experimental data (R2= 0.99), and according to thermodynamic parameters, boron adsorption has spontaneous and endothermic nature (ΔHo=15.47 kJ mol–1).

KW - adsorption

KW - boron

KW - Graphene oxide

KW - wastewater

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DO - 10.55730/1300-0527.3568

M3 - Article

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SN - 1300-0527

VL - 47

SP - 656

EP - 666

JO - Turkish Journal of Chemistry

JF - Turkish Journal of Chemistry

IS - 3

ER -

Investigation of boron adsorption by graphene oxide: equilibrium, kinetic, and thermodynamic studies

Abstract

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Keywords

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