Fabrication of Ce/N co-doped TiO2/diatomite granule catalyst and its improved visible-light-driven photoactivity
作者： Yan Chen , Kuiren Liu
DOI: 10.1016/J.JHAZMAT.2016.10.043
关键词:
摘要: Abstract Eliminating antibiotic remnants in aquatic environment has become one of the hottest topics among current research works. Thus, we prepared Ce, N co-doped TiO 2 /diatomite granule (CNTD-G) catalyst to provide a new method. As typical antibiotics, oxytetracycline (OTC) was selected as target pollutant be degradated under visible light irradiation. The carrier diatomite helped spread nanoparticles onto its surface, and inhibited their agglomeration. synergy Ce dopants highly improved visible-light-driven photoactivity . optimal doping amount degradation conditions were determined. Besides, effects impurity ions also investigated, including cations: Ca 2+ , Mg ; or anions: NO 3 − SO 4 2− PO 3− intermediates generated during process studied, mechanism photodegradation proposed. CNTD-G could easily collected from reactor, showed excellent recyclability.
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