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Removal of Dye by Adsorption on Nitric Acid Treated Sugar Bagasse Wastes, an Experimentally, Theoretically, and Computational Studies
In this study, carbonized activated bagasse (CAB) was generated from sugarcane bagasse wastes using a chemical carbonization process to remove crystal-violet (CV) dye, posing a low environmental risk. The CAB obtained is characterised using a Fourier-Transform Infrared spectrophotometer and a scanni...
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Published in: | Russian Journal of Physical Chemistry A 2022-12, Vol.96 (14), p.3232-3243 |
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Main Authors: | , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | In this study, carbonized activated bagasse (CAB) was generated from sugarcane bagasse wastes using a chemical carbonization process to remove crystal-violet (CV) dye, posing a low environmental risk. The CAB obtained is characterised using a Fourier-Transform Infrared spectrophotometer and a scanning electron microscope. The pH, contact time, temperature, adsorbent concentration, and initial concentration of CV dye were all measured. The maximum removal percentage of around 82% was obtained under optimal conditions of pH 10, 3 h, 25°C, 0.01 g adsorbent dose, and 100 ppm initial dye concentration. According to the kinetic tests, the best kinetic model for CV adsorption was pseudo-second-order. To test thermodynamic parameters such as free enthalpy (
H
), entropy (
S
), and energy (
G
), the Langmuir constant (
K
) was used, supplemented by the Temkin and Freundlich models. The previous study is supported with a computational studies Monte Carlo (MC) simulation and molecular dynamics (MD) simulation. |
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ISSN: | 0036-0244 1531-863X |
DOI: | 10.1134/S0036024423020085 |