Abstract
The ZnxCd1-xS/TiO2 hierarchical heterostructures were successfully fabricated by combining electrospinning technology and hydrothermal methods. The morphology, crystallinity, composition and band gap of ZnxCd1-xS/TiO2 were characterized by SEM, XRD, EDS, and UV-vis diffuse reflectance spectroscopy. The results indicated the sulphur concentration had a significant influence on the composition and morphology of the products. The values of the band gap energy for ZnxCd1-xS/TiO2 varied from2.33 to 2.66 eV with the change of sulphur concentration.Whenthe molar ratio of S/Ti was 0.96, the ZnxCd1-xS/TiO2 hierarchical heterostructures exhibited enhanced visible light photocatalytic behaviour for the decomposition of Rhodamine B (RhB) under visible light irradiation. The photocatalytic degradation of RhB followed first-order reaction kinetics.
| Original language | English |
|---|---|
| Pages (from-to) | 138-142 |
| Number of pages | 5 |
| Journal | South African Journal of Chemistry |
| Volume | 68 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1 Jan 2015 |
Keywords
- Dye degradition
- Electrospinning
- Heterostructures
- Photocatalysis
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