A new double Z‐scheme TiO2/ZnO‐g‐C3N4 nanocomposite with enhanced photodegradation efficiency for Rhodamine B under sunlight

The double Z‐scheme TiO2/ZnO‐g‐C3N4 nanophotocatalyst was prepared by sol–gel method and solvothermal method. X‐ray diffractometer, FT‐IR, transmission electron microscopy, energy dispersive X‐ray spectrum, ultraviolet–visible (UV–vis), PL, EIS, and so on were used to characterize the structure, mor...

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Bibliographic Details
Published in:Environmental progress 2023-01, Vol.42 (1), p.n/a
Main Authors: Hongxia, Jing, Yanlin, Gao, Longxiang, Li, Xu, Wang, Wangjun, Pei
Format: Article
Language:English
Subjects:
Carbon nitride
Catalytic activity
Chemical composition
double Z‐scheme photocatalysis
Nanocomposites
Optical properties
Photocatalysis
Photocatalysts
Photodegradation
Pollutants
Rhodamine
Rhodamine B
Sol-gel processes
solar‐driven photocatalyst
Sunlight
TiO2/ZnO/g‐C3N4
Titanium dioxide
Transmission electron microscopy
Ultraviolet radiation
Ultraviolet spectra
Zinc oxide
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Summary:The double Z‐scheme TiO2/ZnO‐g‐C3N4 nanophotocatalyst was prepared by sol–gel method and solvothermal method. X‐ray diffractometer, FT‐IR, transmission electron microscopy, energy dispersive X‐ray spectrum, ultraviolet–visible (UV–vis), PL, EIS, and so on were used to characterize the structure, morphology, chemical composition, and optical properties of the prepared photocatalyst. And Rhodamine B (RhB) was used as a simulated organic pollutant to study the photocatalytic performance of the photocatalyst. The experimental results show that the double Z‐scheme TiO2/ZnO‐g‐C3N4 nanophotocatalyst exhibits high photocatalytic performance under both ultraviolet light and sunlight, and the RhB in the solution can be completely removed in 120 min. This article also proposes a possible Z‐scheme photocatalytic mechanism to explain the increased photocatalytic activity.
ISSN:1944-7442
1944-7450
DOI:10.1002/ep.13968