Hydrothermally Induced Oxygen Doping of Graphitic Carbon Nitride with a Highly Ordered Architecture and Enhanced Photocatalytic Activity
Citations Over TimeTop 10% of 2017 papers
Abstract
As an amorphous or semicrystalline material, graphitic carbon nitride (g-C3 N4 ) displays poor photocatalytic activity owing to rapid recombination of the photogenerated charge carriers, which is mainly caused by a high density of defects in the graphitic structure. In this work, a porous O-doped g-C3 N4 (P-CNO) nanosheet with a highly ordered architecture is fabricated by introducing a novel hydrothermal treatment to the precursor before the final thermal condensation. The photocatalytic hydrogen evolution rate (HER) and HER per surface area of P-CNO are 13.9 and 1.7 times higher than that of bulk g-C3 N4 . The improved photocatalytic activity is ascribed to a synergistic effect of O doping, a porous sheet-like morphology, and increased crystallinity. This work also provides a new approach for the synthesis of other polymer-based photocatalysts with high crystallinity and excellent performance.
Related Papers
- → Defects Engineering Leads to Enhanced Photocatalytic H2 Evolution on Graphitic Carbon Nitride–Covalent Organic Framework Nanosheet Composite(2020)93 cited
- → Bi2MoO6 nanosheet array modified with ultrathin graphitic carbon nitride for high photoelectrochemical performance(2016)54 cited
- → Removal of aspirin from aqueous solutions using graphitic carbon nitride nanosheet: Theoretical and experimental studies(2019)24 cited
- → Novel composites of graphitic carbon nitride and NiO nanosheet arrays as effective photocathodes with enhanced photocurrent performances(2016)19 cited
- → The Investigation on the Crystallinity of USY Zeolite during Hydrothermal Dealumination(1999)2 cited