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- W2045764807 abstract "BiOI/TiO2 heterostructures with different Bi to Ti molar ratios were synthesized through a simple soft-chemical method at a temperature as low as 80 °C. The as-prepared powders were characterized by X-ray powder diffraction, electron microscopy, UV−vis diffuse reflectance spectroscopy, nitrogen sorption, and X-ray photoelectron spectroscopy. The photocatalytic activities of these BiOI/TiO2 heterostructures were evaluated on the degradation of methyl orange under visible-light irradiation (λ > 420 nm). The results revealed that the BiOI/TiO2 heterostructures exhibited much higher photocatalytic activities than pure BiOI and TiO2, respectively, and 50%BiOI/TiO2 showed the best activity among all these heterostructured photocatalysts. Surface photovoltage spectroscopy and transient photovoltage measurements were used to confirm the formation of heterojunction and probe charge transfer between BiOI and TiO2. The visible-light photocatalytic activity enhancement of BiOI/TiO2 heterostructures could be attributed to its strong absorption in the visible region and low recombination rate of the electron−hole pairs because of the heterojunction formed between BiOI and TiO2." @default.
- W2045764807 created "2016-06-24" @default.
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- W2045764807 date "2009-04-01" @default.
- W2045764807 modified "2023-10-11" @default.
- W2045764807 title "Low-Temperature Synthesis and High Visible-Light-Induced Photocatalytic Activity of BiOI/TiO<sub>2</sub> Heterostructures" @default.
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- W2045764807 doi "https://doi.org/10.1021/jp900812d" @default.
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