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Multimodal Characterization of the Oleophilic Hydrophobic Magnetic (OHM) Sponge: A Nanocomposite Material for Oil Spill Remediation

The hydrophobic nature of a material is determined by both its surface chemistry and its physical structure. In order to unravel the factors underpinning the OHM sponge’s unusual hydrophobic nature, we characterized the unique interfaces of this composite material in the context of solid-fluid interactions using a correlative approach. Here we apply a combination of SEM, TEM and Raman spectroscopy to probe the structure, morphology and chemistry of the sponge at multiple length scales. This correlative and multimodal approach is fundamental to fully depict the structure-property relationship of the OHM sponge and overcome the intrinsic challenges of studying hard-soft interfaces. [3-5]