Efficient and Fast Removal of Oils from Water Surfaces via Highly Oleophilic Polyurethane Composites.

ABSTRACT: In this study we evaluated the oil adsorption capacity of an aliphatic polyurethane foam (PU 1) and two of its composites, produced through surface coating using microparticles of silica (PU-Si 2) and activated carbon (PU-ac 3). The oil adsorption capacity in diesel was improved up to 36% using the composite with silica and up to 50% using the composite with activated carbon with respect to the initial PU 1. Excellent performances were retained in gasoline and motor oil. The adsorption was complete after a few seconds. The process follows a monolayer adsorption fitted by the Langmuir isotherm, with a maximum adsorption capacity of 29.50 g/g of diesel for the composite with activated carbon (PU-ac 3). These materials were proved to be highly oleophilic for oil removal from fresh water and s

SUBMITTER: De Nino A 

PROVIDER: S-EPMC8402441 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature