Thermodynamic And Kinetic Study Of The Adsorption Of Congo Red Dye From Its Aqueous Solutions On The Surface Of Nano-Activated Charcoal Prepared From Myrtle Leaves
DOI:
https://doi.org/10.54153/sjpas.2025.v7i1.818Keywords:
Activated charcoal, adsorption, Congo red dye, thermodynamic functions, Lankmeier isothermAbstract
The adsorption properties of Congo Red (C.R.) dye from its aqueous solutions were studied using ultraviolet-visible spectroscopy by measuring the absorbance to monitor the adsorption efficiency. Then, the factors affecting the adsorption efficiency were studied, represented by studying the effect of the equilibrium time of the dye under study, the weight of the adsorbent surface, and the temperature, where the Study of the kinetic behaviour of dye adsorption on the adsorbent surface at a fixed concentration of the adsorbent 10-5M)×5)and an appropriate weight (0.05 g) at the equilibrium time (25 minutes) for Congo Red dye. The results showed that the percentage of dye adsorption efficiency (C.R.) increases with increasing equilibrium time. The thermodynamic functions for the adsorption process were calculated over a range of different temperatures (Cᵒ (15, 25, 35, 45, 55) for the dye under study, and the compression free energy, enthalpy change, and entropy were practically obtained. The results showed that ΔGᵒ is negative for all systems, which means that the process Adsorption of the dye onto the surface of activated charcoal occurs spontaneously, and negative (∆Hᵒ) values indicate that the adsorption process is heat-intensive and prefers the direction of physical adsorption because it is less than 40 KJ/mol. Adsorption isotherms for the dye under study were applied to the adsorbent surface of myrtle leaves activated using isotherms. Langmuir, Freundlich, and Temkin. The results showed that the Freundlich, Lankmeyer, and Temkin isotherms are suitable for representing the adsorption process, with good correlation coefficients. The studied adsorption system was followed kinetically using the kinetic equations, which are: the pseudo-first-order equation and the pseudo-second-order equation. The results showed that the adsorption process is subject to the second-order equation. False according to the correlation coefficient (R2), which gave the best value compared to the first-order equation.
References
1. Kubra KT, Hasan MM, Hasan MN, Salman MS, Khaleque MA, Sheikh MC, et al. The heavy lanthanide of Thulium (III) separation and recovery using specific ligand-based facial composite adsorbent. Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2023;667:131415.
2. Salman MS, Sheikh MC, Hasan MM, Hasan MN, Kubra KT, Rehan AI, et al. Chitosan-coated cotton fiber composite for efficient toxic dye encapsulation from aqueous media. Applied Surface Science. 2023;622:157008.
3. Al-Rashdi MHH, Al-hyali EA. Equilibrium and kinetics studies for the adsorption of methylene blue using a new type of activated carbon prepared from Eucalyptus trees. sjpas [Internet]. 2023 Sep. 30 [cited 2024 Feb. 15];5(3):82-96. Available from: https://www.sjpas.com/index.php/sjpas/article/view/571.
4. Saeed Mohammed Taib A. Comparison of kinetic study of the adsorption of bromothymol blue on activated Attapulgite clay and commercial activated carbon. sjpas [Internet]. 2023 Jun. 30 [cited 2024 Feb. 15];5(2):15-32. Available from: https://www.sjpas.com/index.php/sjpas/article/view/453
5. Chen Y, Fu H, Ma D, Duan Z, Zhang Y, Yang F, et al. Differences of the pore structure and methane adsorption/desorption between vitrain and durain of low-rank coals: case study in the Huanglong Coalfield, southern Ordos Basin, China. Journal of Energy Engineering. 2021;147(5):04021038.
6. Neil KA. Physical Chemistry: Clarendon Press; 1962. 658 p.
7. Ho Y-S. Affinity adsorption of lysozyme with Reactive Red 120-modified magnetic chitosan microspheres. Food chemistry. 2014(161):323.
8. Atkins PW, De Paula J. Atkins' physical chemistry: Oxford university press; 2006. 1085 p.
9. Adam AMA, Saad HA, Atta AA, Alsawat M, Hegab MS, Refat MS, et al. Preparation and characterization of new CrFeO3-carbon composite using environmentally friendly methods to remove organic dye pollutants from aqueous solutions. Crystals. 2021;11(8):960.
10. Gao H, Wang S, Fang L, Sun G, Chen X, Tang S, et al. Nanostructured spinel-type M (M= Mg, Co, Zn) Cr2O4 oxides: novel adsorbents for aqueous Congo red removal. Materials Today Chemistry. 2021;22:100593.
11. Ghosh S, Sarkar A, Chatterjee S, Nayek HP. Elucidation of selective adsorption study of Congo red using new Cadmium (II) metal-organic frameworks: Adsorption kinetics, isotherm and thermodynamics. Journal of Solid State Chemistry. 2021;296:121929.
12. Bae J-S, Su S, Yu XX. Enrichment of ventilation air methane (VAM) with carbon fiber composites. Environmental science & technology. 2014;48(10):6043-9.
13. Majida HO, Raddia AB, Rajaa AA. Preparation and thermodynamic study of MP2 on the surface of activated charcoal. Kufa Journal of Chemistry Sciences. 2013(8).
14. Hulbert BS, Kriven WM. Specimen-displacement correction for powder X-ray diffraction in Debye–Scherrer geometry with a flat area detector. Journal of applied crystallography. 2023;56:160-6.
15. Shimojima T, Nakamura A, Ishizaka K. Development of five-dimensional scanning transmission electron microscopy. Review of Scientific Instruments. 2023;94(2):023705.
16. Vareda JP. On validity, physical meaning, mechanism insights and regression of adsorption kinetic models. Journal of Molecular Liquids. 2023;376:121416.
17. Agarwal S, Tyagi I, Gupta VK, Ghasemi N, Shahivand M, Ghasemi M. Kinetics, equilibrium studies and thermodynamics of methylene blue adsorption on Ephedra strobilacea saw dust and modified using phosphoric acid and zinc chloride. Journal of Molecular Liquids. 2016;218:208-18.
18. Ulfa M, Setiarini I. Effect of weight adsorbents ZnO-silica nanoparticle modified gelatin for methylene blue adsorpstion. AIP Conference Proceedings. 2023;2540:050013.
19. Karadeniz SC, Isik B, Ugraskan V, Cakar F. Agricultural Lolium perenne seeds as a low-cost biosorbent for Safranine T adsorption from wastewater: Isotherm, kinetic, and thermodynamic studies. Physics and Chemistry of the Earth, Parts A/B/C. 2023;129:103338.
20. Scholz M, Martin RJ. Control of bio‐regenerated granular activated carbon by spreadsheet modelling. Journal of Chemical Technology & Biotechnology: International Research in Process, Environmental AND Clean Technology. 1998;71(3):253-61.
21. Deivasigamani P, Kumar PS, Sundaraman S, Soosai MR, Renita AA, Karthikeyan M, et al. Deep insights into kinetics, optimization and thermodynamic estimates of methylene blue adsorption from aqueous solution onto coffee husk (Coffee arabica) activated carbon. Environmental Research. 2023;236:116735.
22. Ragadhita R, Nandiyanto ABD. Curcumin adsorption on zinc imidazole framework-8 particles: Isotherm adsorption using Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich models. Journal of Engineering Science and Technology. 2022;17(2):1078-89.
23. Nandiyanto ABD, Nugraha WC, Yustia I, Ragadhita R, Fiandini M, Saleh M, et al. Rice husk for adsorbing dyes in wastewater: literature review of agricultural waste adsorbent, preparation of Rice husk particles, particle size on adsorption characteristics with mechanism and adsorption isotherm. Journal of Advanced Research in Applied Mechanics. 2023;106(1):1-13.
24. Atar N, Olgun A, Wang S. Adsorption of cadmium (II) and zinc (II) on boron enrichment process waste in aqueous solutions: batch and fixed-bed system studies. Chemical Engineering Journal. 2012;192:1-7.
25. Nandiyanto ABD, Ragadhita R, Fiandini M, Maryanti R, Al Husaeni D, Al Husaeni D. Adsorption isotherm characteristics of calcium carbon microparticles prepared from chicken bone waste to support sustainable development goals (SDGS). Journal of Engineering, Science and Technology. 2023;18(2):1363-79.
26. Xu H, Li S, Wang J, Deng J, Huang G, Sang Q, et al. Removal of Pyridine from Aqueous Solutions Using Lignite, Coking Coal, and Anthracite: Adsorption Kinetics. Processes. 2023;11(11):3118.
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