Experiments combined with theoretical research on the effect of hydrogen evolution by the nanosheet of NiS–CdS–CN catalyst

Multifunctional porous nanofibrous membranes with superior antifouling properties for oil-water separation and photocatalytic degradation

Metal-free carboxyl modified g-C3N4 for enhancing photocatalytic degradation activity of organic pollutants through peroxymonosulfate activation in wastewater under solar radiation

Graphite-like carbon nitride (g-C3N4)-based material has received a considerable attention because of their prominent photo/electro-catalytic performance. However, there is currently a lack of theoretical knowledge on the connection between the interface and increased catalytic activity. In this study, we have covered the promising methods for using g-C3N4 effectively. We further divided the methodologies into three categories: fabrication of hybrid and heterostructures, electronic structure tuning, and geometric structure manipulation. In order to suggest best possible scenarios for their employment in the advancement of effective solar H2 generation in the future, we also compared recent results and significant accomplishments for g-C3N4-based catalysts modified based on the three ways indicated above. Moreover, our study also explain very well most effective site of doping for enhanced catalytic activity. 

Investigating the Spatial Charge Density Flow and Molecular Structure of g-C3N4 Photocatalyst from a Computational Perspective

Ni-doped β-Bi2O3 microspheres cooperated with amorphous carbon nitride (ACN) with three coordinate nitrogen vacancies to construct heterojunction for enhanced pollutants degradation and photocatalytic H2 production

Insights into the interactions of g-C3N4/LaMnO3 hetero-junction to their structures and electronic properties by DFT calculations

Structure design of photocatalysts is highly desirable for taking full advantage of their abilities for H2 evolution. Herein, the highly-efficient TiO2{001}/g-C3N4 (TCN) heterostructures have been fabricated successfully via an in situ ethanol-thermal method. And the structure of g-C3N4 in the TCN heterostructures could be exfoliated from bulk g-C3N4 to nanosheets, nanocrystals and quantum dots with the increase of the synthetic temperature. Through detailed characterization, the structural evolution of g-C3N4 could be attributed to the enhanced temperature of the ethanol-thermal treatment with the shear effects of HF acid. As expected, the optimal TCN-2 heterostructure shows excellent photocatalytic H2 evolution efficiency (1.78 mmol h−1 g−1) under visible-light irradiation. Except for the formed built-in electric field, the significantly enhanced photocatalytic activity of TCN-2 could be ascribed to the enhanced crystallinity of TiO2{001} nanosheets and the formed g-C3N4 nanocrystals with large surface area, which could extend the visible light absorption, and expedite the transfer of photo-generated charge carriers further. Our work could provide guidance on designing TCN heterostructures with the desired structure for highly-efficient photocatalytic water splitting.

Qianqian Shang

Papers

Insights into the interactions of g-C3N4/LaMnO3 hetero-junction to their structures and electronic properties by DFT calculations

Structure modulation of g-C3N4 in TiO2{001}/g-C3N4 hetero-structures for boosting photocatalytic hydrogen evolution