Study of the Kinetics and Equilibrium of the Adsorption of Oils onto Hydrophobic Jute Fiber Modified via the Sol-Gel Method

International Journal of Environmental Research and Public Health
Na LvLei Luo

Abstract

A new kind of hydrophobic and oil sorbent based on jute fiber was successfully prepared by the integration of silica onto a fiber surface via the sol-gel method and subsequent hydrophobic modification with octadecyltrichlorosilane (OTS). Compared with the hydrophilic raw fiber, the modified fiber had a water contact angle (CA) of 136.2°, suggesting that the material has good hydrophobicity. Furthermore, the ability of oil in the oil/water system (taking diesel for example) to absorb was revealed by the kinetics, the isotherm equation, and the thermodynamic parameters. Adsorption behavior was kinetically investigated using pseudo first-order and pseudo second-order models. The data mostly correlated with the pseudo first-order model. The equilibrium adsorption at 298 K was assessed by using the Langmuir and Freundlich isotherm models. The Freundlich model had greater consistency with the experimental data. The obtained thermodynamic parameters demonstrate that the adsorption of diesel is spontaneous, favorable, and exothermic.

References

Jan 1, 2003·Water Research·M HaussardF Villieras
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Feb 20, 2013·Marine Pollution Bulletin·Jintao WangAiqin Wang
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Jul 2, 2017·Marine Pollution Bulletin·Chengzhao ZhangYandi Hu

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Citations

Aug 6, 2019·Frontiers in Chemistry·Qi HuaScott Renneckar
Dec 20, 2020·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Pin ZhangRan Zhou
Jul 25, 2021·The Science of the Total Environment·Ashvinder K RanaVijay Kumar Thakur

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Methods Mentioned

BETA
chips
scanning electron microscopy
equilibrium adsorption

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