Back to Search
Start Over
Solar light-driven CeVO 4 /ZnO nanoheterojunction for the mineralization of Reactive Orange 4.
- Source :
-
Environmental science and pollution research international [Environ Sci Pollut Res Int] 2020 Dec; Vol. 27 (34), pp. 43262-43273. Date of Electronic Publication: 2020 Jul 30. - Publication Year :
- 2020
-
Abstract
- In this study, we synthesized CeVO <subscript>4</subscript> /ZnO nanoheterojunction photocatalyst through hydrothermal-precipitation method. The prepared photocatalyst was characterized by Fourier transform infrared analysis (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) with elemental color mapping (ECM), high-resolution transmission electron microscopy (HR-TEM) with selected area electron diffraction (SAED) pattern, UV-vis diffuse reflection spectroscopy (UV-vis-DRS), BET, and photoluminescence (PL) spectroscopy. The BET surface area of CeVO <subscript>4</subscript> /ZnO is 10.50 m <superscript>2</superscript> /g. The photocatalytic activity of CeVO <subscript>4</subscript> /ZnO nanoheterojunction under solar light was investigated for the degradation of Reactive Orange 4 (RO 4). CeVO <subscript>4</subscript> /ZnO has been found to be more effective for mineralization of RO 4 than the prepared ZnO at neutral pH. The addition of TBA ( <superscript>•</superscript> OH scavenger) contributes a significant decrease in the photodegradation efficiently of the catalyst. Chemical oxygen demand (COD) measurements confirmed the complete mineralization of RO 4. In addition, it found that the photocatalyst was stable and reusable. Graphical abstract.
Details
- Language :
- English
- ISSN :
- 1614-7499
- Volume :
- 27
- Issue :
- 34
- Database :
- MEDLINE
- Journal :
- Environmental science and pollution research international
- Publication Type :
- Academic Journal
- Accession number :
- 32734545
- Full Text :
- https://doi.org/10.1007/s11356-020-10271-8