Activitation of peat to remove Pb2+ and Cd2+ ions in aqueous solution

Authors

  • Nguyen Thanh Tuoi Lap Vo 2 high school, Tan My, Lap Vo, Dong Thap Author
  • Bui Thi Minh Nguyet Dong Thap University Author
  • Ho Sy Thang Dong Thap University Author
  • Huynh Thi Ngoc Dong Thap Department of Science and Technology Author
  • Nguyen Van Hung Dong Thap University Author

DOI:

https://doi.org/10.62239/jca.2024.015

Keywords:

peat, activated, heavy metal ions, adsorption

Abstract

In this study, peat was activated peat by 2.0 M H3PO4 solution and the product was dried at 105 oC for 6 hours. Material characteristics show that the activated peat sample has a higher specific surface area and porosity than the raw peat sample. The adsorption properties of the materials were evaluated through the removal of Pb2+ and Cd2+ ions in aqueous solution. The study shows that the experimental data of adsorption of Pb2+ and Cd2+ ions on activated peat are well described by Langmuir Freundlich, Redlich- Peterson and Temkin isotherm models, but the Langmuir and Redlich- Peterson adsorption isotherm models are more suitable. The activated peat material had a maximum adsorption capacity for Pb2+ and Cd2+ of 33.33 mg/g and 29.07 mg/g, respectively. In addition, the study also showed that the adsorption of both Pb2+ and Cd2+ ions on activated peat followed the pseudo-second-order model. From the research results obtained, it is shown that peat-derived adsorbents have great potential in removing heavy metal ions in aqueous solutions.

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Published

30-03-2024

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Section

Full Articles

How to Cite

Activitation of peat to remove Pb2+ and Cd2+ ions in aqueous solution. (2024). Vietnam Journal of Catalysis and Adsorption, 13(1), 93-98. https://doi.org/10.62239/jca.2024.015

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