Interfacial interactions of submicron plastics with carbon dots: Insights into the interface properties of microplastic weathering.

• Tác giả: Yuan Jiao, Bo Li, Wenjun Li, Chao Liu, Xiaona Liu, Tianwei Qian, Chunfan Yang
• Ngôn ngữ: eng
• Thông tin xuất bản: England : Water research , 2025
• Bộ sưu tập: NCBI
• ID: 702967

Tóm tắt

The interfacial properties and environmental behavior of microplastics (MPs) will change with weathering. A new idea to study the interfacial properties of MPs is provided based on fluorescence response and light scattering changes. Submicron microspheres (PS-AA) obtained by soap-free emulsion polymerization have a well-defined composition and clean surface with carboxyl groups. The interfacial properties of PS-AA changed after Fenton and UV aging, and the sharp edges became blurred. Information on the interfacial interactions of leaf-derived carbon dots (R-CDs) and citrate carbon dots (B-CDs) with aged PS-AA was obtained by recording fluorescence and scattering changes. R-CDs can fluorescently respond to carrying contaminants on aged PS-AA, and their correlation increases with the degree of aging (R