China Petroleum Processing & Petrochemical Technology ›› 2022, Vol. 24 ›› Issue (1): 81-89.

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One-step Synthesis and Photocatalytic Degradation Performance of Sulfur-doped Porous g-C3N4 nanosheets

  

  • Received:2021-06-11 Revised:2022-01-09 Online:2022-03-30 Published:2022-03-30

Abstract: Abstract: In this study, sulfur-doped porous g-C3N4 nanosheets (CN-T-U 1.75) have been synthesized successfully by one-step calcination using urea and thiourea as the precursors. CN-T-U 1.75 exhibited excellent photocatalytic performance for Rhodamine B (RhB) degradation under visible light irradiation, with the kinetic reaction rate constant of 0.01838 min-1. Analysis of the characterization results showed that CN-T-U 1.75 had a larger specific surface area, and the doping caused a change in the energy band structure. Moreover, the catalytic mechanism analysis shows it could produce two oxidation groups of ?O2- and ?OH to degrade pollutants synergistically.

Key words: sulfur-doped g-C3N4, nanosheets, photocatalysis, degradation