Photocatalytic degradation of ammonium dinitramide over novel S-scheme g-C3N4/BiOBr heterostructure nanosheets

Xiaoyan Lian, Suhang Chen*, Fangyuan He, Shuai Dong, Enzhou Liu, Hui Li, Kangzhen Xu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Photocatalytic remediation of explosive wastewater pollution gradually attracts our attention owing to strict environmental protection requirements. In this study, visible light driven photocatalytic degradation of ammonium dinitramide (ADN) over the novel solvothermal-synthesized 2D/2D g-C3N4(CN)/BiOBr(BB) heterostructure nanosheets was carried out. Multiple characterization techniques confirm the successful formation of tight contact interface between BiOBr and CN nanosheets. 30CN/BB composite exhibits the superior photocatalytic activity with degradation efficiency of 95.0 %, attributing to larger effective electrochemical surface area (ECSA), expanded light capture range and efficient S-scheme charge transfer ability. Besides, the main active species were determined as e and O2, and generation level of free radicals was detected by EPR technique. Moreover, the reactive sites and possible degradation mechanism of ADN were analyzed by DFT calculation.

Original languageEnglish
Article number120449
JournalSeparation and Purification Technology
StatePublished - 1 Apr 2022
Externally publishedYes


  • Ammonium dinitramide (ADN)
  • DFT analysis
  • Photocatalytic degradation
  • S-scheme heterojunction
  • g-CN/BiOBr


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