Physicochemical and sorption characteristics of Malaysian Ceiba pentandra (L.) Gaertn. as a natural oil sorbent

Abdullah, M.A. and Rahmah, A.U. and Man, Z. (2010) Physicochemical and sorption characteristics of Malaysian Ceiba pentandra (L.) Gaertn. as a natural oil sorbent. Journal of Hazardous Materials, 177 (1-3). pp. 683-691. ISSN 03043894

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Abstract

Ceiba pentandra (L.) Gaertn (kapok) is a natural sorbent that exhibits excellent hydrophobic-oleophilic characteristics. The effect of packing density, the oil types and solvent treatment on the sorption characteristics of kapok was studied in a batch system. Oil sorption capacity, retention capacity, entrapment stability and kapok reusability were evaluated. Based on SEM and FTIR analyses, kapok fiber was shown to be a lignocellulosic material with hydrophobic waxy coating over the hollow structures. Higher packing density at 0.08. g/ml showed lower sorption capacity, but higher percentage of dynamic oil retention, with only 1 of oil drained out from the test cell. Kapok remained stable after fifteen cycles of reuse with only 30 of sorption capacity reduction. The oil entrapment stability at 0.08. g/ml packing was high with more than 90 of diesel and used engine oil retained after horizontal shaking. After 8. h of chloroform and alkali treatment, 2.1 and 26.3 reduction in sorption capacity were observed, respectively, as compared to the raw kapok. The rigid hollow structure was reduced to flattened-like structure after alkali treatment, though no major structural difference was observed after chloroform treatment. Malaysian kapok has shown great potential as an effective natural oil sorbent, owing to high sorption and retention capacity, structural stability and high reusability. © 2009 Elsevier B.V.

Item Type: Article
Additional Information: cited By 299
Uncontrolled Keywords: Alkali treatment; Batch systems; Ceiba pentandra; Chloroform treatment; Environmental remediation; FTIR analysis; Hollow structure; Horizontal shaking; Lignocellulosic material; Malaysians; Natural sorbents; Oil entrapment; Oil retention; Oil sorption; Packing density; Retention capacity; SEM; Solvent treatment; Sorption capacities; Sorption characteristics; Structural differences; Structural stabilities; Test cell; Used engine oil, Chlorine compounds; Fourier transform infrared spectroscopy; Hydrophobicity; Pollution; Reusability; Rigid structures; Sorbents; System stability, Sorption, alkali; chloroform; diesel fuel; lignocellulose; oil; solvent, cellulose; density; FTIR spectroscopy; hydrophobicity; lignin; oil; physicochemical property; reduction; retention; scanning electron microscopy; solvent; sorption; tree, article; biosorption; chemical structure; controlled study; density; hydrophobicity; infrared spectroscopy; intermethod comparison; kapok; physical chemistry; recycling; scanning electron microscopy, Adsorption; Biodegradation, Environmental; Ceiba; Conservation of Natural Resources; Hydrophobicity; Malaysia; Oils; Solvents, Ceiba pentandra
Depositing User: Mr Ahmad Suhairi UTP
Date Deposited: 09 Nov 2023 15:49
Last Modified: 09 Nov 2023 15:49
URI: https://khub.utp.edu.my/scholars/id/eprint/1271

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