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Borohydride‐functionalized polydopamine‐coated open cell polyurethane foam as a reusable soft structured material for reduction reactions: Application to the removal of a dye
Author(s) -
Lefebvre Louis,
Kelber Julien,
Mao Xiyu,
Ponzio Florian,
Agusti Géraldine,
VigierCarrière Cécile,
Ball Vincent,
Jierry Loïc,
Ritleng Vincent,
Edouard David
Publication year - 2018
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.12944
Subject(s) - sodium borohydride , polyurethane , borohydride , hydrolysis , redox , aqueous solution , chemistry , materials science , chemical engineering , organic chemistry , catalysis , engineering
Open cell polyurethane foams coated with mussel‐inspired polydopamine can be used as support for borohydride anions through their complexation by the catechol groups of the polydopamine layer. This strong interaction prevents borohydride hydrolysis and oxidation, and based on the redox mediator properties of polydopamine, the so‐functionalized polydopamine‐coated open cell polyurethane foams can act as efficient and reusable soft structured materials for the reduction of methylene blue in aqueous solution without additional sodium borohydride (NaBH 4 ). Very low amounts of released boron sub‐products and very small potential of hydrogen (pH) increase are observed in comparison to previous processes using dissolved NaBH 4 . This considerably reduces the environmental impact of the reducing structured material on the treated wastewater compared to the latter. © 2018 American Institute of Chemical Engineers Environ Prog, 38: 329–335, 2019