Synthesis of crystalline carbon nitride with enhanced photocatalytic NO removal performance: An experimental and DFT theoretical study

Boron-Doped Carbon Quantum Dot/Carbon Nanorod/Graphitic Carbon Nitride Composites for Photocatalytic Degradation of Organic Pollutants

“…A strong peak at 800 cm –1 was assigned to the triazine or heptazine ring stretching character. The broad peaks between 1200 and 1600 cm –1 were assigned to the C–N and CN stretching vibrational peaks in the aromatic C–N heterocyclic units, ,, and the broad peaks between 3000 and 3400 cm –1 were assigned to N–H and O–H stretching vibration. In addition, the peak intensities of B-CQDs/CNR/g-C 3 N 4 were higher than that of the control g-C 3 N 4 , suggesting a more orderly arrangement of molecular alignment and better crystallinity …”

“…Two typical diffraction peaks were observed around 12.6 and 27.6°, corresponding to the inplane structural packing of the triazine (100) and interlayerstacking of the aromatic (002) crystal planes g-C 3 N 4 , respectively. 25,37 The (002) diffraction peak of the hybridized B-CQDs/CNR/g-C 3 N 4 first showed an increasing trend and then decreased with the increase of the B-CQDs/CNR content. The diffraction peak intensity of B-CQDs/CNR/g- C 3 N 4 -2 at the (002) crystal plane was obviously higher than that of the control g-C 3 N 4 , indicating that the addition of B-CQDs/CNC at a mass ratio of 0.1% could improve the crystallinity of B-CQDs/CNR/g-C 3 N 4 , thus promoting the separation of the photoinduced electron−hole pairs and the photocatalytic activity.…”

“…A strong peak at 800 cm −1 was assigned to the triazine or heptazine ring stretching character. The broad peaks between 1200 and 1600 cm −1 were assigned to the C−N and C�N stretching vibrational peaks in the aromatic C−N heterocyclic units, 10,36,37 and the broad peaks between 3000 and 3400 cm 3e). To be specific, the N 2 adsorption−desorption isotherms of both samples showed a typical IV type, indicating the presence of mesopores, and Barrett−Joyner−Halenda (BJH) pore-size distribution confirmed the formation of mesopores.…”

Crystalline carbon nitrides for photocatalysis

“…237 The K + could stabilize the electrons and generate long-lived radicals, enabling the photocatalytic reduction of U(VI) in the dark. Besides the photocatalytic degradation of pollutants in the liquid phase, CCN have also been intensively investigated for the photocatalytic removal of gas phase pollutants, including NO 238,239 and CH 3 SH. 97 For instance, Wang and co-workers prepared in-plane highly ordered CCN nanosheets (PCNNs-IHO) through on-surface polymerization approach for the mineralization of CH 3 SH (Fig.…”

A new organotellurium compounds based on camphor, aniline and p-toluidine: preparation, characterization and theoretical study

“…But, the wave function assumes spatial variables and the rotation coordinates are the same, where the positions of the nuclei are constant [24]. The electronic structure and some other properties of atoms, molecules, In several cases the consequences of density functional theory calculations for solid-state molecules agree completely [25][26][27][28].…”