Influence of S doping on structural, optical and visible light photocatalytic activity of ZnO thin films
Source abstract
Abstract
Abstract Pure and S doped ZnO thin films have been synthesized by hydrothermal method at 90 °C for 3 h. Powder XRD analysis shows the formation of hexagonal wurtzite phase of ZnO. The incorporation of S in ZnO lattice was confirmed by XPS analysis. FE-SEM results reveal that the synthesised thin films possess vertically aligned 1D rod structure with hexagonal morphology. UV–visible transmission spectral studies showed that the optical band gap of ZnO was reduced by S doping. PL spectrum confirmed that the effective S doping enhances the visible emission and suppresses the near band gap emission. The effect of S doping on the photocatalytic activity of ZnO thin films for the degradation of methylene blue dye was studied under visible light illumination and the results showed that the S doping provokes appreciable degradation of MB. Furthermore, the S doped ZnO film showed enhanced antibacterial activity compared to pure ZnO film against a Gram negative ( Escherichia coli ) and a Gram positive ( Staphylococcus aureus ) bacteria. This ensures that the S doped ZnO thin films can act as a UV blocking agent with enhanced photocatalytic and antibacterial activities.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: ZnO doping and properties · Ga2O3 and related materials · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (28)
Show source-provided references
1. Single crystal nanowire vertical surround-gate field-effect transistor10.1021/nl049461z ↗
2. Reaction of NO2 with Zn and ZnO:photoemission, XANES and density functional studies on the formation of NO310.1021/jp993224g ↗
3. Synthesis of N-doped ZnO nanoparticles with improved photocatalytical activity10.1016/j.ceramint.2012.12.018 ↗
4. Properties of fluorine doped ZnO thin films deposited by magnetron sputtering10.1016/j.solmat.2008.05.010 ↗
5. Ecofriendly synthesis and solar photocatalytic activity of S-doped ZnO10.1016/j.jhazmat.2010.07.026 ↗
6. Structural and optical properties of the S-doped ZnO particles synthesized by hydrothermal method10.1016/j.apsusc.2010.08.041 ↗
7. Influence of S incorporation on the luminescence property of ZnO nanowires by electrochemical deposition10.1016/j.physleta.2007.12.047 ↗
8. Growth and enhanced optical properties of ZnO:S nanorods and multipodes10.1016/j.matlet.2013.03.059 ↗
9. Structure, morphology, photocatalytic and antibacterial activities of ZnO thin films prepared by sol–gel dip- coating method,10.1016/j.apt.2012.07.002 ↗
10. Influence of Sn doping level on antibacterial activity and certain physical properties of ZnO films deposited using a simplified spray pyrolysis technique10.1016/j.spmi.2012.12.011 ↗
11. Sulfur-doped zinc oxide (ZnO) nanostars: synthesis and simulation of growth mechanism10.1007/s12274-011-0180-3 ↗
12. Structure and photoluminescence of S-doped ZnO nanorod arrays10.1016/j.matlet.2008.11.006 ↗
13. Optical properties and electronic structure of amorphous germanium10.1002/pssb.19660150224 ↗
14. Strong valence-band offset bowing of ZnO1−xSx enhances p-type nitrogen doping of ZnO- like alloys10.1103/PhysRevLett.97.146403 ↗
15. Synthesis of well-aligned ZnO nanowires without catalysts
16. Catalytic growth of zinc oxide nanowires by vapor transport10.1002/1521-4095(200101)13:2<113::AID-ADMA113>3.0.CO;2-H ↗
17. Temperature behavior of electron-acceptor transitions and oxygen vacancy recombinations in ZnO thin films10.1063/1.3284101 ↗
18. Oxygen vacancy induced band-gap narrowing and enhanced visible light photocatalytic activity of ZnO10.1021/am300835p ↗
19. Enhanced photocatalytic performance of graphene–ZnO nano platelet composite thin films prepared by electrostatic spray deposition10.1016/j.ceramint.2013.09.060 ↗
20. Preparation and photocatalytic activity of Cu-doped ZnO thin films prepared by the sol–gel method10.1016/j.apsusc.2012.05.021 ↗
21. Hydrogen peroxide generation and photocatalytic degradation of estrone by microstructural controlled ZnO nanorod arrays10.1016/j.apsusc.2012.09.067 ↗
22. Bactericidal action of illuminated TiO2 on pure Escherichia coli and natural bacterial consortia: post-irradiation events in the dark and assessment of the effective disinfection time10.1016/j.apcatb.2003.11.013 ↗
23. Photocatalytic inactivation of Gram-positive and Gram-negative bacteria using fluorescent light10.1016/j.jphotochem.2006.09.002 ↗
24. Controllable synthesis of ZnO nanoparticles and their morphology-dependent antibacterial and optical properties10.1016/j.jphotobiol.2013.01.004 ↗
25. Enhanced bioactivity of ZnO nanoparticles—an antimicrobial study10.1088/1468-6996/9/3/035004 ↗
26. Antibacterial activities of inorganic agents on six bacteria associated with oral infections by two susceptibility tests10.1016/j.ijantimicag.2006.01.008 ↗
27. Preparation of zinc oxide ceramics with a sustainable antibacterial activity under dark conditions10.1016/j.ceramint.2009.09.026 ↗
28. Characterization and photoreactivity of N-, S-, and C-doped ZnO under UV and visible light illumination10.1016/j.jphotochem.2008.05.022 ↗