AI Article Synopsis
- The study focuses on creating activated carbon from Cassia fistula seeds to treat water contaminated with Ni(II) ions through physical and chemical methods.
- The modified seeds exhibit a mean particle size of 1 μm and were tested for various parameters like pH, temperature, and adsorbent dose to optimize their effectiveness.
- The results show a maximum adsorption capacity of 182.2 mg/g for Ni(II) ions, following a specific kinetic model and indicating that the process is efficient, spontaneous, and suitable as a potential alternative to commercial activated carbon.
Article Abstract
The present work demonstrates the preparation of Cassia fistula seeds for producing activated carbon through physical and chemical treatment for the extrusion of Ni(II) ion contaminated aqueous solution. The readily prepared sorbents were characterized using SEM-EDX and FTIR. The surface morphology of sorbents possesses 1 μm mean particle size with uniform size distribution. Furthermore, optimization of operating parameters such as the pH, initial Ni(II) ion concentration, adsorbent dose, time and temperature were investigated. In isotherm and kinetic aspect, Langmuir maximum adsorption capacity of sulphuric acid modified Cassia fistula seeds was 182.2 (mg/g); obeyed Pseudo first order kinetic model. The Ni(II) ion adsorption system undergoes chemisorption, exothermic, feasible and spontaneous. The excellent properties of the Cassia fistula seeds can be alternate for commercial activated carbon.
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| http://dx.doi.org/10.1016/j.biortech.2019.02.070 | DOI Listing |
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