pH and Magnetism Dual-Responsive Pickering Emulsion Stabilized by Dynamic Covalent FeO Nanoparticles.

Herein, we describe pH and magnetism dual-responsive liquid paraffin-in-water Pickering emulsion stabilized by dynamic covalent FeO (DC-FeO) nanoparticles. On one hand, the Pickerinfigureg emulsions are sensitive to pH variations, and efficient demulsification can be achieved by regulating the pH between 10 and 2 within 30 min. The dynamic imine bond in DC-FeO can be reversibly formed and decomposed, resulting in a pH-controlled amphiphilicity.

High-performance anti-haze window screen based on multiscale structured polyvinylidene fluoride nanofibers.

Indoor air quality (IAQ) has assumed new significance given the extensive amount of time spent indoor due to the coronavirus pandemic and particulate matter (PM) pollution. Accordingly, the development of window air filters to effectively intercept PM from outdoor air under natural ventilation conditions is an important research topic. However, most existing filters inevitably suffer from the compromise among filtration capability, transparency, and air permeability.