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Construction of BiOBrxI1−x/MXene Ti3C2Tx composite for improved photocatalytic degradability

  • Xian Shi
  • Pingquan WangEmail author
  • Lan Lan
  • Shenglong Jia
  • Ziyu Wei
Article
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Abstract

Forming BiOBrxI1−x solid solution structural photocatalyst has been regarded as an efficient method for photocatalytic property of bismuth oxyhalides (Bi–O–X, X = Br, Cl and I) photocatalysts. In this work, in order to further improve the photocatalytic property of BiOBrxI1−x, MXene Ti3C2Tx material was used to construct heterostructural photocatalyst with BiOBrxI1−x. The MXene Ti3C2Tx was achieved by etching the Ti3AlC2 with HF and its layered structure was firstly confirmed by X-ray diffraction, scanning electron microscope and high resolution transmission electron microscope. The BiOBr0.5I0.5/MXene Ti3C2Tx (BOT-5) composite was achieved through a simple synthesis process and its heterostructure was determined by efficient characterizations. Through degradation experiments, the improved photocatalytic degradation property for Rhodamine B (RhB) and phenol of BOT-5 was observed and its excellent chemical stability was also verified meanwhile. The photocatalytic mechanism of BOT-5 was further explored in this work. Through efficient experimental strategies, the enhanced carrier photocatalysis of BOT-5 together with its inhibited extinction photocatalysis was verified. Benefiting from the enhanced carrier photocatalysis of BOT-5, more superoxide and hydroxyl radicals were generated and supported its enhanced photocatalytic degradability.

Notes

Acknowledgements

This work is supported by National Natural Science Foundation of China (Grant No. 51702270), the Scientific Research Starting Project of SWPU (Grant No. 2015QHZ001), Young Scholars Development Fund of SWPU (Grant No. 201499010100), Open Fund (Grant No. 201601) of State Key Laboratory of Physical Chemistry of Solid Surfaces (Xiamen University).

Supplementary material

10854_2019_2346_MOESM1_ESM.docx (685 kb)
Supplementary material 1 (DOCX 685 kb)

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Xian Shi
    • 1
  • Pingquan Wang
    • 1
    Email author
  • Lan Lan
    • 1
  • Shenglong Jia
    • 2
  • Ziyu Wei
    • 2
  1. 1.School of Oil & Natural Gas EngineeringSouthwest Petroleum UniversityChengduChina
  2. 2.Qinghai Oilfield Branch of PetroChinaDunhuangChina

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