Polyurethane foam impregnated with lignin as a filler for the removal of crude oil from contaminated water

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• 作者：O.S.H. Santos^a ; Mercê ; s Coelho da Silva^b ; V.R. Silva^a ; W.N. Mussel^a ; M.I. Yoshida^a ; ^{mirene@ufmg.br}
• 关键词：Polyurethane foam ; Lignin ; Oil removal ; Isotherms ; Environmental contamination
• 刊名：Journal of Hazardous Materials
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：324
• 期：part_PB
• 页码：406-413
• 全文大小：3238 K
• 卷排序：324

文摘

The presence of lignin in polyurethane foams increased oil sorption capacity. The presence of lignin resulted in a decrease in the hydrophobicity of the foams. Langmuir isotherm predicted a maximum oil adsorption of 28.9 g g−1 by the PUF-10. ΔG° (−4.4 kJ mol−1) indicated that adsorption process by PUF-10 was spontaneous. The recyclability of the foam showed efficiency greater than 95% after five cycles.