Dual-sensitized modification engineering with enhanced photocatalytic degradation for organic dye
| Autor: | Yingying Zhao, Wuyou Fu, Jiejing Zhang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Nanocomposite Scanning electron microscope Condensed Matter Physics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Adsorption X-ray photoelectron spectroscopy Chemical engineering Photocatalysis Electrical and Electronic Engineering Visible spectrum Chemical bath deposition Nanosheet |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 32:19380-19389 |
| ISSN: | 1573-482X 0957-4522 |
| DOI: | 10.1007/s10854-021-06455-8 |
| Popis: | Organic pollutant is an environmentally harmful and ubiquitous aquatic pollutant with extensive production and application. In this study, a unique novel TiO2-based dual-sensitized heterojunction photocatalyst (PbS/CdS/TiO2) was successfully obtained by one step hydrothermal method, chemical bath deposition (CBD) method and ionic layer adsorption and reaction (SILAR) method. Scanning electron microscopy, X-ray photoelectron spectroscopy, transmission electron microscopy and energy dispersive spectrometer characterized the composition. PbS/CdS was successfully decorated on the surface of TiO2 nanosheet array. As a stable catalyst with wide-spectrum (300–800 nm) optical response, excited electron–hole pairs of PbS/CdS/TiO2 could apply in degrading organic pollutants. Successfully, the degradation efficiency of PbS(5 C)/CdS(30 min)/TiO2 nanocomposites reached 99.9% under visible light, which was 5 times over pure TiO2. This ternary heterostructured materials will be well-promising photocatalysts. |
| Databáze: | OpenAIRE |
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