Iodine adsorption characteristics of activated carbon obtained from Spinacia Oleracea (spinach) leaves

Authors

  • Prakash Kumar Jha Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal
  • Vinay Kumar Jha Central Department of Chemistry, Tribhuvan University, Kirtipur, Kathmandu, Nepal https://orcid.org/0000-0001-6375-8482

DOI:

https://doi.org/10.5564/mjc.v21i47.1249

Keywords:

Acid - activated carbon, Adsorption, Iodine, Spinach leaves, Waste

Abstract

Spinach leaves powder was modified by activation with conc. H2SO4 and was characterized by using FTIR, optical microscopy, XRD analysis and methylene blue adsorption method. The maximum specific surface area measured by the Methylene blue adsorption method was 499 m2/g. The adsorption of iodine was investigated by varying parameters as pH, adsorbent dose, contact time and I2 concentration. The adsorption process was fitted to the Langmuir model controlled by pseudo - second –  order kinetics with a constant rate value of 0.00305 g/(mg·min). The maximum adsorption was at pH 10. The maximum adsorption capacity was 909.091 mg/g. The ∆G value was -25 kJ/mole, which confirmed the physico - chemcal adsorption process.

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Published

2020-12-31

How to Cite

Jha, P. K., & Jha, V. K. (2020). Iodine adsorption characteristics of activated carbon obtained from Spinacia Oleracea (spinach) leaves. Mongolian Journal of Chemistry, 21(47), 1–11. https://doi.org/10.5564/mjc.v21i47.1249

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Articles