Temperature-controlled morphology evolution of graphitic carbon nitride nanostructures and their photocatalytic activities under visible light

RSC Advances ◽  
2015 ◽  
Vol 5 (61) ◽  
pp. 49317-49325 ◽  
Author(s):  
Quan Gu ◽  
Ziwei Gao ◽  
Hongan Zhao ◽  
Zaizhu Lou ◽  
Yusen Liao ◽  
...  
Keyword(s):  
Visible Light ◽  
Carbon Nitride ◽  
Graphitic Carbon Nitride ◽  
Morphology Evolution ◽  
Simple Strategy ◽  
Structure Activity ◽  
Photocatalytic Activities ◽  
Controlled Morphology ◽  
Temperature Controlled ◽  
Relationship Of

This work provides a simple strategy for exfoliating bulk g-C3N4 and offers in-depth understanding on structure–activity relationship of g-C3N4.

scholarly journals Graphitic carbon nitride prepared from urea as a photocatalyst for visible-light carbon dioxide reduction with the aid of a mononuclear ruthenium(II) complex

2018 ◽  
Vol 14 ◽  
pp. 1806-1812 ◽  
Author(s):  
Kazuhiko Maeda ◽  
Daehyeon An ◽  
Ryo Kuriki ◽  
Daling Lu ◽  
Osamu Ishitani
Keyword(s):  
Visible Light ◽  
Carbon Nitride ◽  
Synthesis Temperature ◽  
Maximum Activity ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
X Ray Diffraction ◽  
Reduction Activity ◽  
Photocatalytic Activities ◽  
Different Temperatures

Graphitic carbon nitride (g-C3N4) was synthesized by heating urea at different temperatures (773–923 K) in air, and was examined as a photocatalyst for CO2 reduction. With increasing synthesis temperature, the conversion of urea into g-C3N4 was facilitated, as confirmed by X-ray diffraction, FTIR spectroscopy and elemental analysis. The as-synthesized g-C3N4 samples, further modified with Ag nanoparticles, were capable of reducing CO2 into formate under visible light (λ > 400 nm) in the presence of triethanolamine as an electron donor, with the aid of a molecular Ru(II) cocatalyst (RuP). The CO2 reduction activity was improved by increasing the synthesis temperature of g-C3N4, with the maximum activity obtained at 873–923 K. This trend was also consistent with that observed in photocatalytic H2 evolution using Pt-loaded g-C3N4. The photocatalytic activities of RuP/g-C3N4 for CO2 reduction and H2 evolution were thus shown to be strongly associated with the generation of the crystallized g-C3N4 phase.

Photocatalytic Activities of Graphitic Carbon Nitride Powder for Water Reduction and Oxidation under Visible Light

2009 ◽  
Vol 113 (12) ◽  
pp. 4940-4947 ◽  
Author(s):  
Kazuhiko Maeda ◽  
Xinchen Wang ◽  
Yasushi Nishihara ◽  
Daling Lu ◽  
Markus Antonietti ◽  
...  
Keyword(s):  
Visible Light ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Nitride Powder ◽  
Water Reduction ◽  
Photocatalytic Activities ◽  
Reduction And Oxidation
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