Abstract
The synthesis of efficient photocatalysts for visible light-assisted photodegradation of aqueous phase organic pollutants has received significant consideration recently. In this research, Co-doped ZnO is synthesized by the precipitation method for enhanced visible-light assisted photodegradation of methylene blue. The XRD and XPS analyses showed that Co exists in a divalent state in the as-prepared composite. The UV-visible DRS analyses showed that incorporation of Co2+ in the ZnO structure greatly enhanced the visible light absorption due to its photosensitizing effect. Analyses of reaction mixtures showed about 9, 64, 96, and 79% degradation of methylene blue in the presence of pure ZnO, 5% CoO-ZnO, 10% CoO-ZnO, and 15% CoO-ZnO, respectively. The photodegradation of methylene blue is described using the Langmuir-Hinshelwood mechanism.
| Original language | English |
|---|---|
| Pages (from-to) | 2224-2231 |
| Number of pages | 8 |
| Journal | New Journal of Chemistry |
| Volume | 46 |
| Issue number | 5 |
| DOIs | |
| State | Published - 7 Feb 2022 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2022 The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.
ASJC Scopus subject areas
- Catalysis
- General Chemistry
- Materials Chemistry