Polyaromatic hydrocarbon inner-structured carbon nanodots for interfacial enhancement of carbon fiber composite.

ABSTRACT: It is well known that carbon substances with a polyaromatic hydrocarbon (PAH) inner structure only form at high temperature. In this work, we introduce fabrication of massive and PAH inner-structured carbon nanodots (CNDs) via hydrothermal treatment of glucose aqueous solution in the monolithic methyl silicone hydrogel at 200 °C. During the carbonization process, all the precursor solution is confined in nano-vessels (2-20 nm) of the thermostable methyl silicone hydrogel, thus forming CNDs without aggregation. The resulting CNDs, with a yield of 65%, were separated facilely and characterized using various spectroscopy and microscopy techniques. The glucose-derived CNDs have diameters of 2-5 nm and contain 18.9 wt% carboxyl groups, and their aqueous solubility depends on the pH. The

SUBMITTER: Xi XF 

PROVIDER: S-EPMC9047968 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature