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We have prepared a super‐hydrophobic/super‐oleophilic modified sponge material (C‐PDMS‐PU) by attaching carbon powder and polydimethylsiloxane (PDMS) to a sponge skeleton by a simple dip‐coating method using a low‐cost polyurethane sponge as the raw material. The material has a C‐PDMS composite hydrophobic coating, which can efficiently and selectively absorb oil slicks on the water surface or organic solvents underwater that are 21–26 times its weight. Relying on this adsorbent, we have built an oil collection device that can in‐situ absorb/desorb oil with a dynamic viscosity ranging from 0 CP to 172 CP on the water surface or underwater. This oil collection device is small, simple to operate, and portable, thus freeing the adsorbent from the limits of adsorption capacity while continuously and efficiently recovering the oil from the sea surface, hence achieving the integration of adsorption and separation. This new adsorbent and the oil collection device have promising applications in emergencies, such as organic solvent spills, tanker spills, and oil spills from offshore rigs. [ABSTRACT FROM AUTHOR]

A non-solvent-induced phase separation method was used to synthesize easily separable membrane materials from polyether sulfone and polym-phenylenediamine to achieve selective recovery of Au from e-waste solutions. The optimum conditions, adsorption capacity, and selectivity of the polyether sulfone/polym-phenylenediamine membrane were investigated by adsorption experiments. The maximum adsorption capacity of the PES/PmPD membrane to Au(III) within 4 h at 30 °C with optimal pH of 1 was 582.75 mg/g. The adsorption process follows the quasi-second-order adsorption isotherm. The adsorption agent was characterized by XPS and XRD to understand the recovery mechanism of Au(III) by PES/PmPD membrane. In addition, PES/PmPD membranes were single-selective for Au(III) in a variety of natural water bodies and highly acidic conditions. Therefore, the thin membrane material has great potential for recycling Au(III) from waste e-waste. • A kind of macro polyether sulfone/polym-phenylenediamine(PES/PmPD) membrane material was prepared. • PES/PmPD membrane has high selectivity for gold in e-waste solution. • The treatment capacity of PES/PmPD membrane for Au(III) reaches 582.75 mg/g. • PES/PmPD membrane can be regenerated by simple solution washing. [ABSTRACT FROM AUTHOR]