Novel photocatalytic system Fe-complex/TiO for efficient degradation of phenol and norfloxacin in water.

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2019
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Abstract
Photocatalysis is one of the effective strategies to eliminate various organic pollutants in water body. In this paper we have prepared a series of new composite photocatalysts to degrade phenol and norfloxacin under visible light irradiation. They were [Fe(dpbpy)(HO)]/TiO, [Fe(dpbpy)(phen)]/TiO and [Fe(dpbpy)(bpy)]/TiO (dpbpy: 2,2'-bipyridine-4,4'-diphosphoric acid, phen: 1,10-phenanthroline, bpy: 2,2-bipyridyl). The results show that their photocatalytic performance and cyclic stability are much better than that of pure TiO or P25. Phenol can be degraded almost completely and the active groups or substituents of norfloxacin (NOR) can be destroyed also, which greatly reduced the biological toxicity of phenol and norfloxacin in water. The possible mechanisms of improving the photocatalytic activity and stability of TiO by using Fe-complex are proposed based on free radical capture test and density functional theory calculation. It is clearly that the interfacial interaction between Fe-complex and titanium dioxide directly affects the photocatalytic activity and stability of the composite photocatalyst. The conjugated structure of the complexes plays a crucial role.
Reference Key
wang2019novel Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Wang, Xinyue;Sun, Yingnan;Yang, Lu;Shang, Qingkun;Wang, Dan;Guo, Tongtong;Guo, Yihang;
Journal The Science of the total environment
Year 2019
DOI
S0048-9697(18)34774-0
URL
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