Characterization of V2O5/MoO3 composite photocatalysts prepared via electrospinning and their photodegradation activity for dimethyl phthalate

doi:10.1016/S1872-2067(15)61002-6

Abstract

Abstract:

Vanadium pentoxide (V₂O₅)/molybdenum trioxide (MoO₃) composites with different molar ratios of vanadium (V) to molybdenum (Mo) were synthesized via a simple electrospinning technique. The photocatalytic activity of the composites were evaluated by their ability to photodegrade methylene blue and dimethyl phthalate (DMP) under visible-light irradiation. Compared with pure V₂O₅ and MoO₃, the V₂O₅/MoO₃ composites showed enhanced visible-light photocatalytic activity because of a V 3d impurity energy level and the formation of heterostructures at the interface between V₂O₅ and MoO₃. The optimal molar ratio of V to Mo in the V₂O₅/MoO₃ composites was found to be around 1/2. Furthermore, high-performance liquid chromatographic monitoring revealed that phthalic acid was the main intermediate in the photocatalytic degradation process of DMP.

Key words: Electrospinning, Vanadium pentoxide, Molybdenum trioxide, Composites, Photodegradation activity, Dimethyl phthalate

Hongyuan Chuai, Defeng Zhou, Xiaofei Zhu, Zhaohui Li, Weiping Huang . Characterization of V₂O₅/MoO₃ composite photocatalysts prepared via electrospinning and their photodegradation activity for dimethyl phthalate[J]. Chinese Journal of Catalysis, 2015, 36(12): 2194-2202.

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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(15)61002-6

https://www.cjcatal.com/EN/Y2015/V36/I12/2194

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Characterization of V₂O₅/MoO₃ composite photocatalysts prepared via electrospinning and their photodegradation activity for dimethyl phthalate

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