UNCOVERING THE ROLE OF SURFACE-ATTACHED AG NANOPARTICLES IN PHOTODEGRADATION IMPROVEMENT OF RHODAMINE B BY ZNO-AG NANORODS
Loading...
Date
2022-08-22
Authors
Em, Svetlana
Yedigenov, Mussa
Khamkhash, Laura
Atabaev, Shanazar
Molkenova, Anara
Poulopoulos, Stavros G.
Atabaev, Timur Sh.
Journal Title
Journal ISSN
Volume Title
Publisher
Nanomaterials
Abstract
ZnO nanorods decorated with metal nanoparticles have sparked considerable interest
in recent years thanks to their suitability for a wide range of applications, such as photocatalysis,
photovoltaics, antibacterial activity, and sensing devices. In this study, we prepared and investigated
the improved solar-light-assisted photocatalytic activity of ZnO nanorods (NRs) decorated with Ag
nanoparticles (NPs) using a conventional rhodamine B (RB) dye as a model water pollutant. We
showed that the presence of Ag NPs on the surface of ZnO NRs significantly increases the degradation
rate of RB dye (~0.2432 min1) when compared to bare ZnO NRs (~0.0431 min1). The improved
photocatalytic activity of ZnO-Ag was further experimentally tested using radical scavengers. The
obtained results reveal that ˙OH and ˙O2
radicals are main active species involved in the RB dye
photodegradation by ZnO-Ag NRs. It was concluded that efficient charge separation plays a major
role in photocatalytic activity improvement.
Description
Keywords
Type of access: Open Access, ZnO nanorods, Ag nanoparticles, photodegradation, photocatalytic activity, radical scavengers, rhodamine B
Citation
Em, S., Yedigenov, M., Khamkhash, L., Atabaev, S., Molkenova, A., Poulopoulos, S. G., & Atabaev, T. S. (2022). Uncovering the Role of Surface-Attached Ag Nanoparticles in Photodegradation Improvement of Rhodamine B by ZnO-Ag Nanorods. Nanomaterials, 12(16), 2882. https://doi.org/10.3390/nano12162882