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<p>The present work aimed to develop composites using natural fiber matrices from kapok (<i>Ceiba pentandra (L) Gaerth)</i>, chitosan and castor oil, applying two different adhesion methods– compression and natural non-pressed mixture– to remove oil from geese feathers affected by oil spill accidents. The test results indicate a sorption capacity of 20.72&#xa0;g/g for kapok fibers <i>in natura</i> (without processing or treatments), 29.86&#xa0;g/g for Composite-non-pressed (CNP) and 22.99&#xa0;g/g for Composite-pressed (CP), using lubricant oil 20W50 as model pollutant. The composites were also impregnated with titanium dioxide (TiO<sub>2</sub>) to analyse the self-cleaning and regeneration capacity. After their use, the materials were subjected to regeneration processes. Oil removal from feathers reached 84.98% using CNP and 82.84% for CP. During the regeneration, a remarkable performance was observed for centrifuge filtration, with an 87% recovery of the sorption potential of CNP after the fourth application cycle, while the CP composite maintained 92.5% of its capacity within the same range and under the same conditions.</p>

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Highly Efficient Bio-Based Composites from Natural Fibers for Fauna Protection and Oil Spill Remediation

  • 期刊论文

  • 发表日期：

    2025年4月25日

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  • Islla M. C. Silvino,
  • Beatriz S. Alves,
  • Eduardo J. Fonseca,
  • Vanderson B. Bernardo,
  • Carmem L. P. S. Zanta,
  • Josealdo Tonholo,
  • Laís F. A. M. Oliveira,
  • José L. S. Duarte,
  • Leonardo M. T. M. Oliveira

摘要

The present work aimed to develop composites using natural fiber matrices from kapok (Ceiba pentandra (L) Gaerth), chitosan and castor oil, applying two different adhesion methods– compression and natural non-pressed mixture– to remove oil from geese feathers affected by oil spill accidents. The test results indicate a sorption capacity of 20.72 g/g for kapok fibers in natura (without processing or treatments), 29.86 g/g for Composite-non-pressed (CNP) and 22.99 g/g for Composite-pressed (CP), using lubricant oil 20W50 as model pollutant. The composites were also impregnated with titanium dioxide (TiO2) to analyse the self-cleaning and regeneration capacity. After their use, the materials were subjected to regeneration processes. Oil removal from feathers reached 84.98% using CNP and 82.84% for CP. During the regeneration, a remarkable performance was observed for centrifuge filtration, with an 87% recovery of the sorption potential of CNP after the fourth application cycle, while the CP composite maintained 92.5% of its capacity within the same range and under the same conditions.