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In situ preparation of Ag3VO4/MOFs composites with enhanced visible-light-driven catalytic activity

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Abstract

In this work, we have fabricated a novel Ag3VO4/MIL-125(Ti) photocatalyst by in situ deposition method, which is characterized by XRD, SEM, TEM, FT-IR, XPS, TG, BET, UV-Vis DRS, and PL. The photocatalytic degradation activity of as-prepared materials was studied via decomposing Rh B, and the possible mechanism of photocatalytic degradation was put forward. The result displayed that the specific surface area of a series of composites is larger than that of the single Ag3VO4 (SBET = 9.374 m2/g), and the photocatalytic efficiency is much higher than that of pure Ag3VO4 and MIL-125(Ti). Among them, the photocatalytic activity of AM-3 composite (SBET = 89.734 m2/g, Eg = 2.13 eV) is the highest, about 3.7 times and 13.1 times of pure Ag3VO4 and MIL-125(Ti), respectively. At the same time, the Ag3VO4/MIL-125(Ti) composite can maintain a stable photocatalytic activity and structure after four cycles.

The possible route of photoelectron generation and transport in the Ag3VO4/MIL-125(Ti) composite

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Funding

This work received financial support from the National Natural Science Foundation of China (grant number 51146008).

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Correspondence to Ying Chen.

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Zhai, B., Chen, Y. & Liang, Y. In situ preparation of Ag3VO4/MOFs composites with enhanced visible-light-driven catalytic activity. J Nanopart Res 21, 265 (2019). https://doi.org/10.1007/s11051-019-4704-1

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  • DOI: https://doi.org/10.1007/s11051-019-4704-1

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