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VOL. 7, ISSUE 1 (2023)
Optimization studies on the sorption of crude oil onto silver nano composites of pineapple crown
Authors
Chukwudi-Madu Etanuro, Chime Charles C, Udeozo Prisca I, Ajah Doris N
Abstract
Oil spillage has posed a tremendous negative effect to the world today, as it has challenged the world’s economy and ecosystem. The world’s governing bodies and scientists have been on a quest to develop new low-cost and effective techniques in the area of addressing this challenge. This study compared the performance of raw and acetylated silver nano-composites of pineapple crown (AgNRPA and AgNAPA) as an eco-friendly and effective material for the sorption of crude oil from aqueous medium. The sorbents characterization using FT-IR spectrum showed functional groups that enabled the sorption process. The kinetic study done revealed that the sorption process was governed by pore and surface penetration, as well as chemisorption, justified by the R2 values of 0.945 and 0.992 for AgNRPA and AgNAPA as best fitted to pseudo second order model while the isotherm study done generated data of 1.000 and 0.999 for AgNRPA and AgNAPA respectively as best fitted to Temkin isotherm haven sampled three isotherm models; Langmuir, Freundlich and Temkin models thus revealing the sorption process as multilayer and endothermic. Thermodynamic study described the sorption process chemisorption and endothermic in nature as seen by data generated for the enthalpy as 82.6 and 25.5 (KJ/mol). Its positive values observed in the entropy change showed that there is an increase in the degree of disorderliness of the system while the negative values of the Gibb’s energy revealed that the absorption process was spontaneous in nature. The statistical analysis done using SPSS version 26 successfully created predictive equations for the oil sorption capacities under varying conditions and revealed the existing relationships between the variables in this study. There-fore the successful application this material in their modified nano- composite form as seen in this study can be use in addressing the problem of oil spillage in the marine regions.
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Pages:21-28
How to cite this article:
Chukwudi-Madu Etanuro, Chime Charles C, Udeozo Prisca I, Ajah Doris N "Optimization studies on the sorption of crude oil onto silver nano composites of pineapple crown". International Journal of Chemistry Studies, Vol 7, Issue 1, 2023, Pages 21-28
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