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Synthesis and Catalytic Performance of a New V-doped CeO2-supported Alkali-activated-steel-slag-based Photocatalyst

  • Advanced Materials
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Abstract

A novel V-doped CeO2-supported alkali-activated-steel-slag-based catalyst (V-CeO2/AC) for photocatalytic decomposition of water to hydrogen was prepared via co-impregnation method. The chemical composition, mineral phase, morphology, and optical performances of the synthesized catalyst samples were characterized by XRF, XRD, SEM, UV-Vis DRS, and so on. XRD and SEM results show that calcium silicate hydrate (Ca1.5SiO3.5·xH2O) mineral phase is formed in the carrier sample, and the prepared catalyst specimens are made up of approximately 50 nm particles. After 6 hours of xenon lamp irradiation, the catalyst supported on V-doped 8wt% CeO2 exhibits the highest photocatalytic hydrogen production activity (8 292 µmol/g), which is attributed to the interaction between the V-doped CeO2 active components and FeO existed in catalyst carrier. A possible photocatalytic decomposition of water for hydrogen production mechanism over the V-8CeO2/AC catalyst was proposed.

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Authors and Affiliations

  1. College of Materials Science and Engineering, Xi’an University of Science and Technology, Xi’an, 710054, China

    Le Kang  (康乐), Huiling Du, Xinrui Jing & Sen Zhang

  2. College of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an, 710054, China

    Jun Deng

  3. College of Materials and Mineral Resources, Xi’an University of Architecture and Technology, Xi’an, 710055, China

    Yaojun Znang

Authors
  1. Le Kang  (康乐)
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  2. Huiling Du
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  3. Jun Deng
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  4. Xinrui Jing
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  5. Sen Zhang
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  6. Yaojun Znang
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Corresponding author

Correspondence to Le Kang  (康乐).

Additional information

Funded by the National Natural Science Foundation of China (No.51372197), the Basic Research Plan of Natural Science of Shaanxi Province (No.2020JQ-754), the Key Innovation Team of Shaanxi Province (No.2014KCT-04), the Special Project of Shaanxi Province (No.19JK0490), the Construction and Promotion of Highlevel Achievements in Material Science and Engineering Discipline of Xi’an University of Science and Technology (No.2040519061), the Study on Preparation and Properties of New Solid-waste-based Cementitious Materials (No.6000190120), and the Xi’an University of Science and Technology Doctoral Start-up Project (No. 2018QDJ011)

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Kang, L., Du, H., Deng, J. et al. Synthesis and Catalytic Performance of a New V-doped CeO2-supported Alkali-activated-steel-slag-based Photocatalyst. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 36, 209–214 (2021). https://doi.org/10.1007/s11595-021-2396-8

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  • DOI: https://doi.org/10.1007/s11595-021-2396-8

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