The aim of this work is the employment of char waste in the synthesis of silicon foams for oil spill remediation and the comparison analysis with carbon nanotubes-filled foams. The foams are obtained by foaming a slurry constituted by a silicone matrix with CNT or char filler (7.7 wt%) in presence of a Sn-based catalyst. All the investigated materials present a foam morphology with an open/closed cell structure. Each foam was tested in three used common oils (kerosene, crude oil, and pump oil). Also, hydrophilic behavior of the foam was investigated. CNT showed a 700% sorp- tion capacity in light oils (almost 7 goil/gfoam in kero- sene); on the contrary, char foam evidenced the higher sorption efficiency in heavier oils; in particular, it reaches 130% in pump oil (1.3 goil/gfoam). All the filled foams are reusable. The reuse increases the foam effi- ciency and decreases the economic and environmental impacts.

Sustainable Reuse of Char Waste for Oil Spill Recovery Foams

Piperopoulos, E.
;
Calabrese, L.;Mastronardo, E.;Proverbio, E.;Milone, C.
2020

Abstract

The aim of this work is the employment of char waste in the synthesis of silicon foams for oil spill remediation and the comparison analysis with carbon nanotubes-filled foams. The foams are obtained by foaming a slurry constituted by a silicone matrix with CNT or char filler (7.7 wt%) in presence of a Sn-based catalyst. All the investigated materials present a foam morphology with an open/closed cell structure. Each foam was tested in three used common oils (kerosene, crude oil, and pump oil). Also, hydrophilic behavior of the foam was investigated. CNT showed a 700% sorp- tion capacity in light oils (almost 7 goil/gfoam in kero- sene); on the contrary, char foam evidenced the higher sorption efficiency in heavier oils; in particular, it reaches 130% in pump oil (1.3 goil/gfoam). All the filled foams are reusable. The reuse increases the foam effi- ciency and decreases the economic and environmental impacts.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11570/3169251
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