Hao Wei

TL;DR: Nitrogen-doped, carbon-rich, highly photoluminescent carbon dots have been synthesized for the first time from ammonium citrate under hydrothermal conditions and possess bright blue luminescence, short fluorescence lifetime, pH-sensitivity and excellent stability at a high salt concentration.

TL;DR: In this article, a useful ammonia (NH3) gas sensor based on reduced graphene oxide (RGO) and polyaniline (PANI) hybrid was presented, where PANI nanoparticles were successfully anchored on the surface of RGO sheets by using RGO-MnO2 hybrids as both of the templates and oxidants for aniline monomer during the process of polymerization.

TL;DR: RGO, which was prepared via the reduction of graphene oxide by pyrrole, exhibited excellent responsive sensitivity and selectivity to ammonia (NH3) gas and showed great potential for ultrasensitive detection of NH3 gas in a wide variety of fields.

TL;DR: The development of CDs as nanoprobes is still in its infancy, but continued progress may lead to their integration into environmental and biological applications as discussed by the authors, where the authors reviewed the applications of fluorescent carbon dots in salt ions, organic/biological molecules and target gases.

TL;DR: This two-dimensional enamine-linked covalent organic framework was found to have a high crystallinity, high stability, high BET surface area, and a high CO2 capacity and adsorption selectivity of CO2/N2.