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- W2912074472 abstract "Carbon quantum dots were successfully doped into anatase TiO2 single crystal nanosheets (TNS) with exposed {001} and {101} reactive facets by a facile solvothermal process. SEM and TEM confirmed the as-prepared TiO2 nanosheet structure and that the dominant exposed face is the {001} facet, and the loaded N-CDs are nearly spherical with an average size of about 3 nm. XPS results confirmed that the deposited N-CDs were chemically integrated into the TiO2 nanosheets. UV-vis DRS spectroscopy shows that with the dotting of N-CDs, the absorption edge of N-CDs/TNS has been extended into the visible light region. The ability of the N-CDs/TNS to degrade Rhodamine B (RhB) in aqueous solution under visible light irradiation (λ ≥ 400 nm) was investigated. The results show that the photocatalytic performance of N-CDs/TNS was substantially improved relative to pure TNS. The photodegradation efficiency reached its maximum value with 6 mL of N-CDs/TNS, showing a 9.3-fold improvement in photocatalytic activity over TNS. Fluorescence spectroscopy (PL) and electron paramagnetic resonance (EPR) studies were conducted to characterize the active species during the degradation period, based on which the possible photodegradation mechanism of N-CDs/TNS by visible light irradiation was given." @default.
- W2912074472 created "2019-02-21" @default.
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- W2912074472 date "2019-01-01" @default.
- W2912074472 modified "2023-10-18" @default.
- W2912074472 title "Construction of carbon quantum dots/single crystal TiO<sub>2</sub> nanosheets with exposed {001} and {101} facets and their visible light driven catalytic activity" @default.
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- W2912074472 doi "https://doi.org/10.1039/c8ra10311a" @default.
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