Hybridisation of ZnO with Ti3C2 as a co-catalyst for enhanced photocatalytic activity
- Author(s): Qiang Luo 1 ; Junsheng Yang 1 ; Yan Wu 1 ; Qizhou Cai 2
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View affiliations
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Affiliations:
1:
School of Mechanical Engineering, Wuhan Polytechnic University , Wuhan 430048 , People's Republic of China ;
2: State Key Laboratory of Material Processing and Die & Mould Technology , Huazhong University of Science and Technology , Wuhan 430074 , People's Republic of China
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Affiliations:
1:
School of Mechanical Engineering, Wuhan Polytechnic University , Wuhan 430048 , People's Republic of China ;
- Source:
Volume 15, Issue 11,
23
September
2020,
p.
764 – 768
DOI: 10.1049/mnl.2019.0797 , Online ISSN 1750-0443
In this study, a typical MXene material, Ti3C2, was selected as a co-catalyst and then integrated with ZnO via a facile hydrothermal strategy. The phase composition, morphology, and photophysical properties of as-prepared samples were investigated by XRD, field emission SEM, ultraviolet–visible spectrophotometer, and fluorescence spectrophotometer, respectively. In addition, the results of the photocatalysis experiment showed that the photocatalytic activity of ZnO can be improved significantly through the hybridisation with Ti3C2, which arises from the inhibition of the photogenerated carriers recombination. Furthermore, the theoretical analysis indicated that the high-quantum efficiency arises from the appropriate Fermi level position of Ti3C2. This work demonstrated that Ti3C2 will show great potential for constructing novel and efficient photocatalysts.
Inspec keywords: composite materials; zinc compounds; field emission scanning electron microscopy; X-ray diffraction; semiconductor growth; crystal growth from solution; visible spectra; electron-hole recombination; II-VI semiconductors; wide band gap semiconductors; titanium compounds; ultraviolet spectra; photocatalysts; Fermi level; fluorescence; surface chemistry; photocatalysis
Other keywords: photocatalysis; co-catalyst; photocatalytic activity; photogenerated carrier recombination; phase composition; fluorescence spectrophotometry; ultraviolet–visible spectrophotometry; morphology; field emission SEM; ZnO-Ti3C2; XRD; photophysical properties; hybridisation; hydrothermal strategy; Fermi level; MXene material
Subjects: Heterogeneous catalysis at surfaces and other surface reactions; Crystal growth; Visible and ultraviolet spectra of composite materials; Photolysis and photodissociation by IR, UV and visible radiation; Photoluminescence in composite materials; Charge carriers: generation, recombination, lifetime, and trapping (semiconductors/insulators); Electronic structure of crystalline elemental semiconductors; Crystal growth from solution; II-VI and III-V semiconductors
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