Photocatalytic-Fenton Process under Simulated Solar Radiation Promoted by a Suitable Catalyst Selection

Catalysts

卷:11

Helen E. Valencia¹  Joachim Mayer¹  Maria Meledina¹  Aida M. Díez²  Yury V. Kolen'ko² 

[1] Central Facility for Electron Microscopy (GFE), RWTH Aachen University, D-52074 Aachen, Germany;

[2] International Iberian Nanotechnology Group, Avda. Mestre José Veiga s/n, 4715-330 Braga, Portugal;

关键词: catalyst characterization;    operational parameters;    hydrogen peroxide;    photo-Fenton;    magnetic photocatalyst;   

DOI  :  10.3390/catal11080885

来源: DOAJ

【 摘 要 】

Considering water scarcity, photo-based processes have been presented as a depollution technique, which should be optimized in order to be applied in the future. For that, the addition of an active photocatalyst and the usage of solar radiation are mandatory steps. Thus, Fe₃O₄–SiO₂–TiO₂ was synthesized, and its performance was evaluated using simulated solar radiation and methylene blue as a model pollutant. Under optimal conditions, 86% degradation was attained in 1 h. These results were compared to recent published data, and the better performance can be attributed to both the operational conditions selection and the higher photocatalyst activity. Indeed, Fe₃O₄–SiO₂–TiO₂ was physico-chemically characterized with techniques such as XRD, N₂ isotherms, spectrophotometry, FTIR, electrochemical assays and TEM.

【 授权许可】

Unknown