Adsorption of two typical pharmaceuticals and personal care products (PPCPs) (meloxicam and naproxen) onto core−shell Fe 3 O 4 @MIL-100(Fe) on the basis of optimal parameters such as the effect of pH, the amount of adsorbent, coexisting ions, and the varying concentration has been described. Adsorption kinetic data were modeled using the pseudo-firstorder and the pseudo-second-order kinetic equations. Kinetic studies showed better applicability for the pseudo-first-order model, indicating the process controlled by the chemical reaction. The Freundlich isotherm model was more suitable to describe the adsorption equilibrium data than the Langmuir model, suggesting that the adsorption process was multilayer adsorption. The thermodynamic paraments obtained indicate that the adsorption on Fe 3 O 4 @MIL-100(Fe) was a spontaneous, endothermic, and entropy-increasing process. In addition, the molecular simulation was used to elucidate the molecular interactions and free binding energies between Fe 3 O 4 @MIL-100(Fe) and two targets and explained the adsorption mechanism of the host and the guest. The segregative and renewable properties of core−shell Fe 3 O 4 @MIL-100(Fe) make it widely used in the removal of PPCPs from an aqueous solution, which will be beneficial for commercial exploitations.

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Skin wound management is an important issue in the medical community. Herein, we report a multifunctional film with many advanced features as a dressing for the healing of wounds. The dressing was made using chitosan and poly(acrylamide) (pAAm) hydrogel in order to form a double network (DN) hydrogel film. Compared to the pure chitosan hydrogel, which is fragile, the added pAAm network conferred excellent mechanical capability to the composite film, making it flexible and easy to treat. By further doping the hydrogel with carbon nanotubes and drugs, the film could promote wound healing. Animal experiments demonstrated that the DN hydrogel film could reduce inflammation and promote tissue regeneration. Thus, this film is promising as a treatment for wound healing.