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

1
School of Environmental Science & Safety Engineering, Tianjin University of Technology, Tianjin 300384, China
2
Laboratory of Environmental protection in Water Transport Engineering, Tianjin Research Institute for Water Transport Engineering, Ministry of Transport, Tianjin 300456, China
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2018, 15(5), 969; https://doi.org/10.3390/ijerph15050969
Received: 17 March 2018 / Revised: 30 April 2018 / Accepted: 10 May 2018 / Published: 12 May 2018
(This article belongs to the Special Issue Nanomaterials for Environmental Remediation)
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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. View Full-Text
Keywords: jute fiber; oil spill; the sol-gel method; hydrophobic; adsorption kinetics jute fiber; oil spill; the sol-gel method; hydrophobic; adsorption kinetics
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Lv, N.; Wang, X.; Peng, S.; Zhang, H.; Luo, L. Study of the Kinetics and Equilibrium of the Adsorption of Oils onto Hydrophobic Jute Fiber Modified via the Sol-Gel Method. Int. J. Environ. Res. Public Health 2018, 15, 969.

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