Multicolor Phenylenediamine Carbon Dots for Metal-Ion Detection with Picomolar Sensitivity.

ABSTRACT: Carbon dots keep attracting attention in multidisciplinary fields, motivating the development of new compounds. Phenylenediamine C₆H₄(NH₂)₂ dots are known to exhibit colorful emission, which depends on size, composition, and the functional surface groups, forming those structures. While quite a few fabrication protocols have been developed, the quantum yield of phenylenediamine dots still does not exceed 50% owing to undesired fragment formation during carbonization. Here, we demonstrate that an ethylene glycol-based environment allows obtaining multicolor high-quantum-yield phenylenediamine carbon dots. In particular, a kinetic realization of solvothermal synthesis in acidic environments enhances carbonization reaction yield for meta phenylenedi

SUBMITTER: Barhum H 

PROVIDER: S-EPMC8488935 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature