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This research introduced a photocatalytic fuel cell (PFC) configuration utilising graphitic carbon nitride (GCN) derived from urea through a calcination process and immobilised on a carbon plate for application as the photoanode and platinum-loaded carbon paper as the cathode. The function of the PFC was to treat the organic wastewater containing the azo dye, Reactive Red 120 (RR120) and generate electrical energy simultaneously under irradiation of UVA light. The investigation focused on the effect of supporting electrolytes on the efficiency of PFC in RR120 degradation and power output. Results revealed that 57.31% decolourisation of 10 mg/L RR120 dye was attained in the presence of a supporting electrolyte, compared to a 44.39% removal efficiency without electrolyte over 6 h. Additionally, voltage output increased significantly with the application of supporting electrolyte, reaching a maximum power density of 2.164 mW/m2 while 0.0852 mW/m2 for that of non-supporting electrolyte.

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Evaluation of Graphitic Carbon Nitride Loaded Carbon Plate as Photoanode for RR120 Dye Degradation Under the Effect of Supporting Electrolyte

  • 会议论文

  • 发表日期：

    2025年

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  • Jai-Xien OrYang,
  • Li-Ngee Ho,
  • Chang-Chuan Lee,
  • Kang-Zheng Khor,
  • Soon-An Ong

摘要

This research introduced a photocatalytic fuel cell (PFC) configuration utilising graphitic carbon nitride (GCN) derived from urea through a calcination process and immobilised on a carbon plate for application as the photoanode and platinum-loaded carbon paper as the cathode. The function of the PFC was to treat the organic wastewater containing the azo dye, Reactive Red 120 (RR120) and generate electrical energy simultaneously under irradiation of UVA light. The investigation focused on the effect of supporting electrolytes on the efficiency of PFC in RR120 degradation and power output. Results revealed that 57.31% decolourisation of 10 mg/L RR120 dye was attained in the presence of a supporting electrolyte, compared to a 44.39% removal efficiency without electrolyte over 6 h. Additionally, voltage output increased significantly with the application of supporting electrolyte, reaching a maximum power density of 2.164 mW/m2 while 0.0852 mW/m2 for that of non-supporting electrolyte.