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Kinetics and thermodynamics of methylene blue adsorption onto black plum seed-based graphene oxide

  • Oluwadayo Asokogene Francis EMAIL logo and Muhammad Abbas Ahmad Zaini ORCID logo
Published/Copyright: December 5, 2024
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International Journal of Chemical Reactor Engineering
From the journal International Journal of Chemical Reactor Engineering Volume 22 Issue 12

Abstract

The kinetics and thermodynamics of methylene blue adsorption from aqueous solution was studied using low-cost biomass graphite (CVDM) and graphene oxide (SGO) derived from black plum seed. The effects of pH in the range of 2.2–12.5, adsorbent dosage in the range of 25–100 mg and solution temperature in the range of 28.7–90 °C were studied. The optimum conditions were recorded at pH 4.8, dosage of 25 mg and solution temperature of 70 °C. The pseudo-second-order model demonstrated the best fit to experimental data (R 2 → 1 and SSE = 3.69), rapid rate constant (K s = 0.0868 g/mg.min) and empirical adsorption capacity of 4.12 mg/g. The adsorption of methylene blue onto SGO increased with solution temperature to 70 °C before it decreased, suggesting a weakening of the attractive adsorbent-adsorbate forces due to collisions among methylene blue molecules.

Keywords: adsorbent; adsorption; graphite; methylene blue
Corresponding author: Oluwadayo Asokogene Francis, Department of Chemical Engineering, Edo State University, Uzairue, Nigeria, E-mail:

Acknowledgments

We wish to acknowledge the role and support of Momoh Solomon, Abiakwe Esther Chidinma, Chemical Engineering laboratory and Chemistry laboratory of Edo State University, Uzairue, Nigeria.

  1. Research ethics: Not applicable.

  2. Informed consent: Not applicable.

  3. Author contributions: Dr. Francis Asokogene Oluwadayo: Conceptualization, methodology, experimental work, analysis, resource, validation, first draft, review, final draft. Assoc. Prof. Muhammad Abbas Ahmad Zaini: Analysis, validation, review, final draft. The authors have accepted responsibility for the entire content of this manuscript and approved its submission.

  4. Use of Large Language Models, AI and Machine Learning Tools: Large Language Models, AI and Machine Learning Tools were not used in experimental design, data collection and writing of the manuscript.

  5. Conflict of interest: The authors state no conflict of interest.

  6. Research funding: None declared.

  7. Data availability: Not applicable.

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Received: 2024-08-20
Accepted: 2024-11-15
Published Online: 2024-12-05

© 2024 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Articles
  3. Kinetics and thermodynamics of methylene blue adsorption onto black plum seed-based graphene oxide
  4. Preparation of high-activity mineral powder from coal gangue through thermal and chemical activation
  5. Electrical performance of calcium ferrite in sintering by the assimilation melt breakover method
  6. Production of biodiesel from hemp oil and oleic acid with sulfonated camphor catalysts is to be evaluated with controlled tests in a diesel engine
  7. Removing fluorine and chlorine from zinc oxide dust by wet alkaline washing and studying fluorine occurrence states
  8. Epoxidation of sunflower oil via in situ generated hybrid peracids mechanism
  9. Oxidative conversion of lignin into monophenolic compound catalyzed by NaOH–NaAlO2/γ-Al2O3 under mild conditions
  10. Dynamic modeling and optimization of methanol partial oxidation to formaldehyde over Mo–Fe catalyst in an industrial isothermal reactor
  11. Testing of kaolinite/TiO2 nanocomposites for methylene blue removal: photodegradation and mechanism
  12. Investigation of gas-liquid flow hydrodynamics in the industrial-scale stirred tank with inclined impeller
https://doi.org/10.1515/ijcre-2024-0168
Keywords for this article
adsorbent; adsorption; graphite; methylene blue

Articles in the same Issue

  1. Frontmatter
  2. Articles
  3. Kinetics and thermodynamics of methylene blue adsorption onto black plum seed-based graphene oxide
  4. Preparation of high-activity mineral powder from coal gangue through thermal and chemical activation
  5. Electrical performance of calcium ferrite in sintering by the assimilation melt breakover method
  6. Production of biodiesel from hemp oil and oleic acid with sulfonated camphor catalysts is to be evaluated with controlled tests in a diesel engine
  7. Removing fluorine and chlorine from zinc oxide dust by wet alkaline washing and studying fluorine occurrence states
  8. Epoxidation of sunflower oil via in situ generated hybrid peracids mechanism
  9. Oxidative conversion of lignin into monophenolic compound catalyzed by NaOH–NaAlO2/γ-Al2O3 under mild conditions
  10. Dynamic modeling and optimization of methanol partial oxidation to formaldehyde over Mo–Fe catalyst in an industrial isothermal reactor
  11. Testing of kaolinite/TiO2 nanocomposites for methylene blue removal: photodegradation and mechanism
  12. Investigation of gas-liquid flow hydrodynamics in the industrial-scale stirred tank with inclined impeller
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