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Charge separation and strong adsorption-enhanced MoO3 visible light photocatalytic performance

  • Xin Guan
  • Yanbing Ren
  • Sifan Chen
  • Junfeng YanEmail author
  • Gang WangEmail author
  • Hongyi Zhao
  • Wu Zhao
  • Zhiyong Zhang
  • Zhouhu Deng
  • Yunyao Zhang
  • Yang Dai
  • Leideng Zou
  • Ruiyong Chen
  • Chunli Liu
Chemical routes to materials
  • 10 Downloads

Abstract

This report aims to systematically study the photocatalytic properties of α-MoO3 and h-MoO3. Here, α-MoO3 nanorods and h-MoO3 hexagonal prism were successfully synthesized via a facile hydrothermal method. The products were characterized in detail, and the results showed that the products are very pure with excellent morphology. The photocatalytic properties of MoO3 were evaluated via methylene blue and rhodamine B dyes as well as tetracycline. The results indicate that the photocatalytic efficiency of α-MoO3 is better than that of h-MoO3, and α-MoO3 has the best photocatalytic activities at 24 h because of the synergistic adsorption and photocatalysis and dye-sensitized mechanism. We further proposed a charge separation model between (002) and (00_2) polar surfaces via density functional theory computation to explain the enhanced photocatalytic activities. The excellent photocatalytic efficiency of α-MoO3 suggests that it can be used for photodegradation of wastewater.

Notes

Acknowledgements

The authors gratefully acknowledge financial support from the National Natural Science Foundation of China (Grants 61701402, 61804125), the General Program for International Science and Technology Cooperation Projects of Shaanxi Province (Grants 2019KW-029) and the Key Program for International Science and Technology Cooperation Projects of Shaanxi Province (Grants 2018KWZ-08). Xi’an Science and Technology Plan Project (Grants 2019218214GXRC018CG019-GXYD18.6).

Author contributions

XG helped in conception, experimental design, data curation, formal analysis, investigation, writing original draft, writing review and editing, carrying out measurements. YR contributed to modeling and calculation. SC was involved in formal analysis, investigation, writing review and editing. JY helped in funding acquisition, project administration, writing review and editing. GW contributed to funding acquisition, investigation, writing review and editing. HZ was involved in conceptualization, experimental design, writing review and editing. WZ helped in resources, carrying out measurements. ZZ project administration. ZD, YZ, YD contributed to experimental design, writing review and editing. LZ helped in writing review and editing. RC, CL were involved in conception, project administration.

Compliance with ethical standards

Conflict of interest

They authors declare that they have no conflict of interest.

Supplementary material

10853_2020_4418_MOESM1_ESM.doc (7.9 mb)
Supplementary file1 (DOC 8070 kb)

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2020

Authors and Affiliations

  1. 1.School of Information Science and TechnologyNorthwest UniversityXi′anPeople’s Republic of China
  2. 2.School of PhysicsNorthwest UniversityXi′anPeople’s Republic of China
  3. 3.Transfercenter Sustainable ElectrochemistrySaarland UniversitySaarbruckenGermany
  4. 4.Department of Physics and Oxide Research CenterHankuk University of Foreign StudiesYonginRepublic of Korea

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