Beilstein J. Nanotechnol.2017,8, 915–926, doi:10.3762/bjnano.8.93
stability and reusability, suggesting its potential for water purification applications.
Keywords: 2,4-dichlorophenoxyaceticacid; Fe2O3/TiO2; herbicide degradation; heterojunction; holes and superoxide radicals; photocatalyst; photodeposition; water purification; Introduction
Photocatalytic reactions
study, both impregnation and photodeposition methods were used to modify TiO2 nanoparticles with Fe2O3 in order to investigate the effect of preparation method on the properties and photocatalytic activity of the nanocomposites with respect to the degradation of 2,4-dichlorophenoxyaceticacid (2,4-D
-dichlorophenoxyaceticacid (2,4-D) under UV light irradiation was examined. The Fe2O3/TiO2 nanocomposites prepared by impregnation showed lower activity than the unmodified TiO2, mainly due to lower specific surface area caused by heat treatment. On the other hand, the Fe2O3/TiO2 nanocomposites prepared by
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Figure 1:
(A) Adsorption and (B) photocatalytic removal of 2,4-D using TiO2 (NT), TiO2 (IM_T) and series of Fe...