Bibliographic Details
| Title: |
Cobalt‐Doped ZnO Nanocomposits for Efficient Dye Degradation: Charge Transfer. |
| Authors: |
Abebe, Buzuayehu, Kefale, Bontu, Amenu, Guta, Guta, Leta, Ravikumar, C. R., Hamdalla, Taymour A., Giridhar Reddy, S., Tsegaye, Dereje, Murthy, H. C. Ananda |
| Source: |
ChemistryOpen; Dec2024, Vol. 13 Issue 12, p1-6, 6p |
| Subject Terms: |
FIELD emission electron microscopy, LIGHT absorption, CHARGE transfer, PHOTOCATALYSTS, METHYLENE blue |
| Abstract: |
Doping enhances the optical properties of high‐band gap zinc oxide nanoparticles (ZnO NPs), essential for their photocatalytic activity. We used the combustion approach to synthesize cobalt‐doped ZnO heterostructure (CDZO). By creating a mid‐edge level, it was possible to tune the indirect band gap of the ZnO NPs from 3.1 eV to 1.8 eV. The red shift and reduction in the intensity of the photoluminescence (PL) spectra resulted from hindrances in electron‐hole recombination and sp‐d exchange interactions. These improved optical properties expanded the absorption of solar light and enhanced charge transfer. The field emission scanning electron microscopy (FESEM) image and elemental mapping analysis confirmed the CDZO′s porous nature and the dopant's uniform distribution. The porosity, nanoscale size (25–55 nm), and crystallinity of the CDZO were further verified by high‐resolution transmission electron microscopy (HRTEM) and selected area electron image analysis. The photocatalytic activity of the CDZO exhibited much greater efficiency (k=0.131 min−1) than that of ZnO NPs (k=0.017 min−1). Therefore, doped heterostructures show great promise for industrial‐scale environmental remediation applications. [ABSTRACT FROM AUTHOR] |
|
Copyright of ChemistryOpen is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| Database: |
Complementary Index |
|
Full text is not displayed to guests. |
Login for full access.
|
