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- W2743265985 abstract "Monodispersed 250 nm-sized TiO2 sphere (TiO2 SP) with large internal surface area was successfully employed in fabricating the Fe3+-grafted nitrogen-doped TiO2 (Fe3+/N-TiO2), exhibiting ultra-high visible-light photocatalytic efficiency. In evolving CO2 from the gaseous 2-propanol (IP) and acetaldehyde, the prepared Fe3+/N-TiO2 SP demonstrated twice of catalytic activity, comparing with the nanoparticle (NP)-based Fe3+/N-TiO2. Consequently, the optimized Fe3+/N-TiO2 SP exhibited 5.0–7.3 times higher efficiency than the bare N-TiO2 NP. The instability of photocatalytic activity is a well-known drawback of the Fe3+/N-TiO2 system, caused by the inherent weakness of Fe3+ ions from the chemical attacks. Herein, however, it was found that SP system with large internal surface is remarkably advantageous for protecting the grafted Fe3+ ions. With mixing of 20 wt% silica binder, which is regarded to be a typical dosage for application, photocatalytic efficiency of the Fe3+/N-TiO2 SP was decreased by only 21–25%, whereas that of the NP-based sample was reduced by 73–80%." @default.
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- W2743265985 date "2013-10-01" @default.
- W2743265985 modified "2023-09-25" @default.
- W2743265985 title "Enhanced visible-light photocatalytic properties of Fe3+-grafted N-doped TiO2 nanoporous spheres" @default.
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- W2743265985 doi "https://doi.org/10.1016/j.apcatb.2013.05.067" @default.
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