In their paper, “Surface-engineered sponges for recovery of crude oil microdroplets from wastewater”, Cherukupally and Sun et al. report an innovative surface engineered sponge that combines surface chemistry, pH-responsive surface charge, and micro-nano roughness that allows for upwards of 92% of crude oil to be adsorbed under ambient conditions. Their work constitutes a new framework for developing surface engineered sponges that addresses the variable pH-responsive wetting behaviour of crude oil and further demonstrates the environmental remediation potential of adsorptive recovery through sponge technology.
See full story at Nature Sustainability.
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