Synthesis and applications of carbon quantum dots derived from biomass waste: a review

Abstract

In the context of the circular economy and decreasing earth resources, waste should be converted into value-added materials such as carbon quantum dots, which are fluorescent nanomaterials with promising applications in sensing, biological imaging, energy storage, and photocatalysis. Here, we review carbon quantum dots with focus on their synthesis from biomass, factors controlling their performance, properties, and applications in energy, medicine, and environmental science. Applications include energy storage in batteries and supercapacitors, renewable energy, pollutant sensing and degradation, drug delivery, biosensing, and bioimaging.

Construction Strategy and Mechanism of a Novel Wood Preservative with Excellent Antifungal Effects

“…Various materials for CQD synthesis exist. They include inorganic carbon sources, such as carbon nanotubes and carbon fibers, and organic carbon sources, such as biomass materials [ 17 , 18 , 19 ]. CQDs are often oblate in shape and their dispersibility is good, and they have attracted widespread attention from scholars owing to their unique physical and chemical properties [ 20 , 21 ].…”

Biomass-derived 2D carbon materials: structure, fabrication, and application in electrochemical sensors

“…41 Wu et al conducted a review of carbon dots derived from biomass waste and their applications in the fields of energy, environment, and medicine. 42 The application of green-derived carbon dots in food safety biosensing has also been discussed. 43 As a building block for electrochemical sensors, 2D carbon materials have a unique layered structure, excellent conductivity, higher specific surface area, and more abundant and accessible surface active sites than other types of carbon nanomaterials.…”