C─S Bonds Modulated Nanointerface Tension to Create Stable Magnetic Hollow Nanocarbons for Efficient Microplastics Capture

capacity) under an alternating magnetic field, owing to the magnetically accelerated mass transfer and increased contact area. Additionally, sulfur modification broadens applicability range where carbon surface is oppositely charged to microplastics, expanding the universality in capturing multiple types of microplastics, even under challenging conditions including different pH and salinities. This work offers guidance into the precise synthesis of hollow nanomaterials from nanointerface perspective. The design principles involving sulfur modification and high-contact area may open prospects for high-capacity microplastics capture in complex aquatic environments.