Title of Article |
Adsorptive Removal of Manganese (II) from Aqueous Solution using Graphene Oxide: A Kinetics and Thermodynamics Study |
Date of Acceptance |
20 June 2017 |
Journal |
Title of Journal |
ORIENTAL JOURNAL OF CHEMISTRY |
Standard |
ISI |
Institute of Journal |
SCIENTIFIC PUBLISHERS |
ISBN/ISSN |
|
Volume |
|
Issue |
|
Month |
|
Year of Publication |
2017 |
Page |
|
Abstract |
An excess amount of manganese is known to affect neurological toxicity. This study focused on adsorptive removal of Mn(II) using graphene oxide, which was carried out under optimum conditions after varying some experimental effects including the initial Mn(II) concentration, pH and an incubation time. It was demonstrated that Mn(II) adsorption behaviour follows Langmuir isotherm model. The maximum adsorption capacity for the removal of Mn(II) from an aqueous media was 41.67 mg/g at pH 5 and their adsorption state was accomplished within 30 min. The adsorption kinetic was applicable to the pseudo second-order kinetic model. For thermodynamics study, three parameters including changes in free energy, enthalpy and entropy were also studied. Overall, the adsorption behaviour was exothermic and spontaneous in nature. |
Keyword |
Graphene oxide; Manganese; Adsorption isotherm; Thermodynamics; Kinetics |
Author |
|
Reviewing Status |
มีผู้ประเมินอิสระ |
Status |
ได้รับการตอบรับให้ตีพิมพ์ |
Level of Publication |
นานาชาติ |
citation |
true |
Part of thesis |
true |
Attach file |
|
Citation |
0
|
|