Three-dimensional (3D) TiO 2 with an acanthosphere-like morphology composed of nanothorns has been used as a suitable support to fabricate a visible-light-induced 3D AgI@TiO 2 nanophotocatalyst. The structural characterization revealed that the size of the obtained AgI@TiO 2 nanocomposite was close to that of pristine TiO 2 particles, where AgI nanoparticles were evenly dispersed on the surfaces of “thorns” of TiO 2 . The as-achieved 3D AgI@TiO 2 nanophotocatalyst exhibited enhanced photocatalytic performance towards photodegradation of organic pollutants, e.g. , rhodamine B (RhB), in comparison with TiO 2 , P25, AgI and AgI@P25 with the same quantity. The enhanced photocatalytic performance is attributed to the strong visible light absorption and the defined interfaces between AgI nanoparticles and TiO 2 nanothorns with efficient separation of photogenerated carriers. The excellent performance of the 3D AgI@TiO 2 nanophotocatalyst suggests its promising applications in water treatment and environmental remediation.
Dalton Transactions – Royal Society of Chemistry
Published: Apr 16, 2013
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