Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 425, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jhazmat.2021.127967
Keywords
G-C3N4/BiOI/Ti; Photocatalytic fuel cell; PMS/PFC; Visible-light responsive
Categories
Funding
- National Natural Science Foundation of China [51876018]
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A visible-light responsive PFC with g-C3N4/BiOI/Ti photoanode was proposed and showed excellent performance in degrading rhodamine B, with a degradation rate of 95.39%, maximum power density of 103.87 μW cm(-2), and maximum photocurrent density of 0.62 mA cm(-2), which were significantly higher than traditional PFC. The enhanced performance was attributed to the production of more reactive oxygen species and the extension of the reaction space range after the activation of PMS.
The development of traditional photocatalytic fuel cell (PFC) is severely hindered by poor visible-light response and limited reaction space. In this study, a visible-light responsive PFC with g-C3N4/BiOI/Ti photoanode was proposed and applied to activate peroxymonosulfate (PMS) to degrade rhodamine B. The degradation rate, maximum power density and maximum photocurrent density of the PMS/PFC system were respectively 95.39%, 103.87 mu W cm(-2) and 0.62 mA cm(-2), which was respectively 1.28, 2.18, and 1.98 times that of PFC. The excellent performance is attributed to the production of more reactive oxygen species and the extension of the reaction space range after the activation of PMS. The activation pathway of PMS and charge transfer pathway of the photoanode were discussed in detail, and it was proposed that PMS was activated by Z-scheme heterojunction gC(3)N(4)/BiOI/Ti photoanode.
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