Journal
DESALINATION AND WATER TREATMENT
Volume 256, Issue -, Pages 253-264Publisher
DESALINATION PUBL
DOI: 10.5004/dwt.2022.28366
Keywords
Jackfruit leaves; Activated carbon; Adsorption; Isotherm; Kinetics
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Funding
- Shahjalal University of Science and Technology (SUST) Research Grant [SUST/2016/AS/02]
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In this study, activated carbon was successfully prepared from jackfruit leaves using phosphoric acid as activating agent. The prepared activated carbon showed good adsorptive performance for the removal of methyl orange dye from aqueous solutions. With high adsorption capacity, it has great potential as a low-cost adsorbent for organic dye removal.
In the present study, activated carbon (AC) was prepared from jackfruit leaves (JFL) using phosphoric acid as activating agent. The prepared AC was characterized by Fourier-transform infrared spectroscopy, nitrogen adsorption???desorption analyses and scanning electron microscopy. The adsorptive performance of the prepared activated was investigated by the adsorption of anionic dye methyl orange (MO) from aqueous solutions. The batch adsorption experiments were carried by varying operation parameters such as pH, adsorbent dosage, initial concentration of dye and contact time. The adsorption capacity was increased with increasing concentration of dye. The equilibrium adsorption data were well fitted to Langmuir isotherm model and maximum adsorption capacity was obtained to be 833 mg/g. The adsorption followed the pseudo-second-order kinetic model. Thermodynamic study suggested the endothermic nature of MO adsorption onto prepared activated carbon. Considering high dye adsorption capacity, AC prepared from jackfruit leaves can be used as a promising low-cost adsorbent for the removal of organic dyes from aqueous solution.
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