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Photofunctional hybrids of TiO2 and titanium metal–organic frameworks for dye degradation and lanthanide ions tuned multi-color luminescence

Abstract

and is further utilized as a catalyst for dye degradation. The as-synthesized hybrid MIL-125(Ti)@TiO2 performs characteristic property of ultraviolet light absorption. The combination of MOFs and corresponding metal oxides, which is further employed as ultraviolet light photocatalyst is relatively bacward. In this work, titanium metallic organic framework and titanium dioxide is combined and the results indicate that the hybrid MIL-125(Ti)@TiO2 behaves better performance of UV-light-driven RhB degradation in aqueous solution compared with pure TiO2. The hybrid also possesses excellent stability during the photocatalytic process. What’s more, the luminescence properties of MIL-125(Ti)@TiO2 are investigated at length after Ln3+ (Eu3+, Tb3+, Sm3+) ions are doped in the hybrid. The emission spectra of Ln@MIL-125(Ti)@TiO2 show characteristic emission lines of the corresponding lanthanide ion when exposed to a proper excitation wavelength. Besides, a discussion of the tunable emitting color of Ln@MIL-125(Ti)@TiO2 is also included. It illustrates that Ln@MIL-125(Ti)@TiO2 has the potential for white light emission application as it can emit white light by changing the ratio of Ln3+ in the hybrid and the excitation wavelength.

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Publication details

The article was received on 05 Dec 2017, accepted on 03 Feb 2018 and first published on 06 Feb 2018


Article type: Paper
DOI: 10.1039/C7NJ04786J
Citation: New J. Chem., 2018, Accepted Manuscript
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    Photofunctional hybrids of TiO2 and titanium metal–organic frameworks for dye degradation and lanthanide ions tuned multi-color luminescence

    S. Zhu and B. Yan, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C7NJ04786J

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