journal article·2019-08

Hierarchical ZnO/Ag nanocomposites for plasmon-enhanced visible-light photocatalytic performance

Sivasankar Koppala, Yi Xia, Libo Zhang, Jinhui Peng, Zhen Chen, Lei Xu

Ceramics International· Volume 45· Issue 12
Publisher page

Abstract

Abstract Surface plasmon resonance (SPR) of the noble metals improve the photocatalytic activity of semiconductor metal oxides in the visible light region. This work reports the facile preparation of SPR induced visible light active hierarchical ZnO/Ag nanocomposite photocatalysts by using environmental friendly two-step method. The prepared nanocomposites analyzed by using various techniques such as powder-XRD, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, UV–Vis spectroscopy, photoluminescence spectroscopy, and photocurrent measurements. The results indicate the formation of hierarchical ZnO/Ag nanocomposites, which shows surface plasmon absorbance and enhanced photocurrent responses. Because of the SPR effect, the nanocomposites show improved visible light photocatalytic activity by enhancing the electron-hole pair separation in Rhodamine B degradation system.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Advanced Photocatalysis Techniques · Copper-based nanomaterials and applications · ZnO doping and properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (22)

Show source-provided references
1. A review on the fabrication of hierarchical ZnO nanostructures for photocatalysis application10.3390/cryst6110148 ↗
2. Synthesis of spherical Ag/ZnO heterostructural composites with excellent photocatalytic activity under visible light and UV irradiation10.1016/j.apsusc.2015.07.012 ↗
3. Band gap-engineered ZnO and Ag/ZnO by ball-milling method and their photocatalytic and Fenton-like photocatalytic activities10.1016/j.apsusc.2015.08.118 ↗
4. Surface-plasmon-induced visible light photocatalytic activity of TiO2 nanospheres decorated by Au nanoparticles with controlled configuration10.1021/jp209520m ↗
5. Highly visible light active Ag@ ZnO nanocomposites synthesized by gel-combustion route10.1016/j.jiec.2013.08.006 ↗
6. Star-shaped ZnO/Ag hybrid nanostructures for enhanced photocatalysis and antibacterial activity10.1016/j.apsusc.2016.11.202 ↗
7. Ag-loaded ZnO materials for photocatalytic water treatment10.1016/j.cej.2016.05.105 ↗
8. Fabrication of Ag/ZnO heterostructure and the role of surface coverage of ZnO microrods by Ag nanoparticles on the photophysical and photocatalytic properties of the metal-semiconductor system10.1016/j.apsusc.2017.03.154 ↗
9. Facile synthesis of Ag-ZnO core–shell nanostructures with enhanced photocatalytic activity10.1016/j.jiec.2017.12.003 ↗
10. Ag/ZnO heterostructure nanocrystals: synthesis, characterization, and photocatalysis10.1021/ic700688f ↗
11. Worm-like Ag/ZnO core–shell heterostructural composites: fabrication, characterization, and photocatalysis10.1021/jp2115143 ↗
12. Growth and characterization of flower-like Ag/ZnO heterostructure composites with enhanced photocatalytic performance10.1007/s10853-013-7935-z ↗
13. Synthesis of ZnO/Au and ZnO/Ag nanoparticles and their photocatalytic application using UV and visible light10.1039/C4RA03158J ↗
14. Nanoseed-assisted rapid formation of ultrathin ZnO nanorods for efficient room temperature NO 2 detection10.1016/j.ceramint.2016.07.058 ↗
15. Ag nanoparticle decorated nanoporous ZnO microrods and their enhanced photocatalytic activities10.1021/am301682g ↗
16. Size-controlled electron transfer and photocatalytic activity of ZnO–Au nanoparticle composites10.1021/jz2013352 ↗
17. Visible-light photocatalytic application of hierarchical Au-ZnO flower-rod heterostructures via surface plasmon resonance10.1007/s11468-013-9531-0 ↗
18. Ag/ZnO flower heterostructures as a visible-light driven photocatalyst via surface plasmon resonance10.1016/j.apcatb.2012.07.002 ↗
19. Defect-rich ZnO nanosheets of high surface area as an efficient visible-light photocatalyst10.1016/j.apcatb.2016.03.040 ↗
20. Oxygen defects-mediated Z-scheme charge separation in gC 3 N 4/ZnO photocatalysts for enhanced visible-light degradation of 4-chlorophenol and hydrogen evolution10.1016/j.apcatb.2017.01.067 ↗
21. Photocatalytic activity of Ag/ZnO core–shell nanoparticles with shell thickness as controlling parameter under green environment10.1088/2053-1591/aa5cd3 ↗
22. One-step synthesis of ZnO and Ag/ZnO heterostructures and their photocatalytic activity10.1016/j.ceramint.2018.01.001 ↗