Preparation and Investigation of Temperature-Responsive SiO2–PSBMA Janus Nanosheet with Salt-Tolerant Properties for Enhanced Recovery of Heavy Oil

Enhancing heavy oil recovery is crucial to ensuring stable crude oil production. The development of stimulus-responsive Janus Pickering emulsifiers tailored for a reservoir environment has garnered significant attention in the field of reservoir production, emerging as a promising alternative to traditional surfactants. In this study, silica-based Janus nanosheets with temperature-responsive properties (OH-SiO