Marine Pollution Bulletin 2013-04-15

Coated kapok fiber for removal of spilled oil.

Jintao Wang, Yian Zheng, Aiqin Wang

Index: Mar. Pollut. Bull. 69(1-2) , 91-6, (2013)

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Abstract

Based on raw kapok fiber, two kinds of oil absorbers with high sorption capacity were prepared by a facile solution-immersion process. The coated polymer with low surface energy and rough fiber surface play important role in the retention of oil. The as-prepared fiber can quickly absorb gasoline, diesel, soybean oil, and paraffin oil up to above 74.5%, 66.8%, 64.4% and 47.8% of oil sorption capacity of raw fiber, respectively. The absorbed oils can be easily recovered by a simple vacuum filtration and the recovered coated-fiber still can be used for several cycles without obvious loss in oil sorption capacity. The thermodynamic study indicates that the adsorption process is spontaneous and exothermic, with complex physisorption and chemisorption. The results suggest that the coated fiber can be used as a low-cost alternative for the removal of oil spilled on water surface.Copyright © 2013 Elsevier Ltd. All rights reserved.

Related Compounds

  • Paraffin oil
  • paraffin wax
  • SOYBEAN OIL

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