Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 299, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2021.120706
Keywords
Diclofenac; Photocatalytic fuel cell; PFC; UV; H2O2
Funding
- European Union's EU Framework Programme for Research and Inno-vation Horizon 2020 [861369]
- Marie Curie Actions (MSCA) [861369] Funding Source: Marie Curie Actions (MSCA)
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This study aimed to construct an integrated reactor that could generate hydrogen peroxide through photoelectrocatalysis under solar radiation and simultaneously degrade recalcitrant pollutants through the UV/H2O2 process. The chosen water-soluble model pollutant, diclofenac, was effectively degraded in the experiment. Results showed that the integrated reactor is a realistic and effective solution for sustainable environmental remediation.
The purpose of this work was to construct an integrated reactor which could photoelectrocatalytically generate hydrogen peroxide under solar radiation and simultaneously degrade a recalcitrant pollutant by the UV/H2O2 process. Diclofenac has been chosen as water soluble model pollutant. Hydrogen peroxide has been produced by atmospheric oxygen reduction in a photocatalytic fuel cell. The cell comprised a transparent photoanode electrode bearing a combined CdS/TiO2 photocatalyst and a carbon cloth cathode bearing nanoparticulate carbon without any other electrocatalyst. Diclofenac was dissolved in the cathode compartment where hydrogen peroxide was generated and the pollutant was degraded by UV radiation support. Degradation was monitored by UV-Vis spectrophotometry and by high performance liquid chromatography. The results show that an integrated reactor functionality is realistic and effective and it provides an alternative route for sustainable operation aiming at environmental remediation.
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