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The TiO2-ZnO Systems with Multifunctional Applications in Photoactive Processes—Efficient Photocatalyst under UV-LED Light and Electrode Materials in DSSCs
- Source :
- Materials, Volume 14, Issue 20, Materials, Vol 14, Iss 6063, p 6063 (2021)
- Publication Year :
- 2021
- Publisher :
- Multidisciplinary Digital Publishing Institute, 2021.
-
Abstract
- The main goal of the study was the hydrothermal-assisted synthesis of TiO2-ZnO systems and their subsequent use in photoactive processes. Additionally, an important objective was to propose a method for synthesizing TiO2-ZnO systems enabling the control of crystallinity and morphology through epitaxial growth of ZnO nanowires. Based on the results of X-ray diffraction analysis, in the case of materials containing a small addition of ZnO (≥5 wt.%), no crystalline phase of wurtzite was observed, proving that a high amount of modified titanium dioxide can inhibit the crystallization of ZnO. The transmission electron microscopy (TEM) results confirmed the formation of ZnO nanowires for systems containing ≥ 5% ZnO. Moreover, for the synthesized systems, there were no significant changes in the band gap energy. One of the primary purposes of this study was to test the TiO2-ZnO system in the photodegradation process of 4-chlorophenol using low-power UV-LED lamps. The results of photo-oxidation studies showed that the obtained binary systems exhibit good photodegradation and mineralization efficiency. Additionally, it was also pointed out that the dye-sensitized solar cells can be a second application for the synthesized TiO2-ZnO binary systems.
- Subjects :
- Technology
Materials science
Band gap
law.invention
chemistry.chemical_compound
Crystallinity
law
General Materials Science
photo-oxidation process
DSSC
Crystallization
Photodegradation
Wurtzite crystal structure
Microscopy
QC120-168.85
QH201-278.5
TiO2-ZnO system
Engineering (General). Civil engineering (General)
TK1-9971
Dye-sensitized solar cell
hydrothermal synthesis
chemistry
Chemical engineering
Descriptive and experimental mechanics
Titanium dioxide
Photocatalysis
Electrical engineering. Electronics. Nuclear engineering
TA1-2040
photocatalysis
Subjects
Details
- Language :
- English
- ISSN :
- 19961944
- Database :
- OpenAIRE
- Journal :
- Materials
- Accession number :
- edsair.doi.dedup.....c483beed693a32a320fbdb386dfeee30
- Full Text :
- https://doi.org/10.3390/ma14206063