Photocatalytic and water-splitting properties of TiO2 and Ag–TiO2 films in the visible light region
Source abstract
Abstract
The structural, optical, and photocatalytic properties of TiO2 and Ag–TiO2 thin films grown by a hydrothermal method were studied by using an x-ray diffractometer, scanning electron microscope, energy-dispersive x ray, and UV–vis spectroscopy. The results indicated that all films were of single-phase and the Ag presence enhanced catalytic and water-splitting performances in the visible light region. In particular, the methylene blue solution was disintegrated up to 99% after 12 and 8 h for TiO2 and Ag–TiO2 films, respectively. Meanwhile, the splitting efficiency increased from 0.3% for TiO2 to 1% for Ag–TiO2. These performances demonstrate the great potential of Ag–TiO2 films in photocatalytic and water-splitting applications.
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Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Copper-based nanomaterials and applications · TiO2 Photocatalysis and Solar Cells
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Graduate University of Science and Technology, Vietnam Academy of Science and Technology 1 , 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
University of Khanh Hoa 2 , 1 Nguyen Chanh, Nha Trang, Khanh Hoa, Vietnam
Institute of Materials Science, Vietnam Academy of Science and Technology 3 , 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
Funding
National Foundation for Science and Technology Development
References (54)
Show source-provided references
1. See https://en.wikipedia.org/wiki/Fossil_fuel for environmental pollution from fossil fuels.
2. See https://www.eia.gov/energyexplained/energy-and-the-environment/greenhouse-gases-and-the-climate.php for carbon dioxide (CO2) emissions from fossil fuel combustion.
3. Photocatalytic reduction of CO2 with H2O over graphene oxide-supported oxygen-rich TiO2 hybrid photocatalyst under visible light irradiation10.1016/j.cej.2015.07.093 ↗
4. Occurrence and fate of emerging contaminants in municipal wastewater treatment plants from different geographical regions—A review10.1016/j.watres.2017.12.029 ↗
5. Analysis of photoefficiency in TiO2 aqueous suspensions: Effect of titania hydrodynamic particle size and catalyst loading on their optical properties10.1016/j.apcatb.2017.08.032 ↗
6. The influence of irradiance and humidity on the photocatalytic conversion of nitrogen(II) oxide10.1515/jaots-2015-0203 ↗
7. Testing and substantial improvement of TiO2/UV photocatalysts in the degradation of Methylene Blue10.1016/j.ceramint.2018.10.249 ↗
8. Decontamination and disinfection of water by solar photocatalysis: Recent overview and trends10.1016/j.cattod.2009.06.018 ↗
9. Visible-light photocatalysts: Prospects and challenges10.1016/j.cej.2016.06.090 ↗
10. Cocatalysts for selective photoreduction of CO2 into solar fuels10.1021/acs.chemrev.8b00400 ↗
11. Facile one-step hydrothermal synthesis toward strongly coupled TiO2/graphene quantum dots photocatalysts for efficient hydrogen evolution10.1016/j.apsusc.2016.11.169 ↗
12. Microwave synthesis of a CoSe2/graphene–TiO2 heterostructure for improved hydrogen evolution from aqueous solutions in the presence of sacrificial agents10.1166/sam.2015.2135 ↗
13. Heterogeneous photocatalyst materials for water splitting10.1039/b800489g ↗
14. TiO2/RGO composites: Its achievement and factors involved in hydrogen production10.1016/j.rser.2017.03.123 ↗
15. Semiconductor-based photocatalytic hydrogen generation10.1021/cr1001645 ↗
16. A simple and cheap way to produce porous ZnO ribbons and their photovoltaic response10.1016/j.matlet.2007.02.021 ↗
17. Carbon dots decorated ultrathin CdS nanosheets enabling in-situ anchored Pt single atoms: A highly efficient solar-driven photocatalyst for hydrogen evolution10.1016/j.apcatb.2019.118036 ↗
18. Graphitic carbon nitrides (g-C3N4) with comparative discussion to carbon materials10.1016/j.carbon.2018.09.082 ↗
19. TiO2 structures doped with noble metals and/or graphene oxide to improve the photocatalytic degradation of dichloroacetic acid10.1007/s11356-016-7714-x ↗
20. Hydrogen generation by photoelectrochemical effect of the Cu-doped TiO2 photoanode10.1088/2043-6262/5/3/035009 ↗
21. Facile synthesis 3D flower-like Ag@WO3 nanostructures and applications in solar-light photocatalysis10.1016/j.jallcom.2018.05.068 ↗
22. TiO2 photocatalyst for removal of volatile organic compounds in gas phase—A review10.1016/j.cej.2017.09.153 ↗
23. Defect controlled tuning of the ratio of ultraviolet to visible light emission in TiO2 thin films10.1016/j.jlumin.2016.07.046 ↗
24. Enhanced removal of pollutant in a BiPO4–SiO2 hybrid hydrogel via an adsorption–enrichment and in situ photocatalysis synergy10.1016/j.matlet.2009.06.043 ↗
25. Photocatalytic degradation of organic molecules on mesoporous visible-light-active Sn(II)-doped titania10.1016/j.jcat.2011.04.014 ↗
26. Rapid and morphology controlled synthesis of anionic S-doped TiO2 photocatalysts for the visible-light-driven photodegradation of organic pollutants10.1039/c6ra03819k ↗
27. Preparation of S-doped TiO2 photocatalysts and their photocatalytic activities under visible light10.1016/j.apcata.2004.01.007 ↗
28. Synthesis of titanium dioxide–reduced graphite oxide nanocomposites and their photocatalytic performance10.1049/mnl.2013.0182 ↗
29. Plasmonic enhancement of dye-sensitized solar cells by using Au-decorated Ag dendrites as a morphology-engineered10.1016/j.renene.2018.03.003 ↗
30. Photocatalytic evaluation of RGO/TiO2NWs/Pd-Ag nanocomposite as an improved catalyst for efficient dye degradation10.1016/j.jallcom.2018.02.345 ↗
31. Modification of titanium dioxide with platinum ions and clusters: Application in photocatalysis10.1021/jp077466p ↗
32. Synthesis of g-C3N4/Bi2O3/TiO2 composite nanotubes: Enhanced activity under visible light irradiation and improved photoelectrochemical activity10.1039/c5ra02750k ↗
33. Synthesis and photocatalytic applications of flower shaped electrospun ZnO–TiO2 mesostructures10.1016/j.matlet.2013.01.072 ↗
34. Heterostructured TiO2/WO3 porous microspheres: Preparation, characterization and photocatalytic properties10.1016/j.cattod.2012.03.008 ↗
35. Photocatalytic WO3/TiO2 nanowires: WO3 polymorphs influencing the atomic layer deposition of TiO210.1039/c6ra18899k ↗
36. Synthesis of porous and visible-light absorbing Bi2WO6/TiO2 heterojunction films with improved photoelectrochemical and photocatalytic performances10.1021/jp1090137 ↗
37. Kinetic study on photocatalytic degradation of C.I. acid yellow 23 by ZnO photocatalyst10.1016/j.jhazmat.2005.10.022 ↗
38. Enhanced antimicrobial activity of silver nanoparticles synthesized by Cryphonectria sp. evaluated singly and in combination with antibiotics10.1016/j.nano.2012.04.007 ↗
39. One-step nano-engineering of dispersed Ag–ZnO nanoparticles’ hybrid in reduced graphene oxide matrix and its superior photocatalytic property10.1039/c3ce41043a ↗
40. Synthesis of high surface area TiO2 nanoparticles by mild acid treatment with HCl or HI for photocatalytic propene oxidation10.1016/j.apcatb.2014.02.039 ↗
41. Controlled synthesis of Ag-coated TiO2 nanofibers and their enhanced effect in photocatalytic applications10.1016/j.apsusc.2013.05.050 ↗
42. Synthesis and photocatalytic applications of Ag/TiO2-nanotubes10.1016/j.talanta.2009.04.036 ↗
43. Synthesis of surface plasmon resonance (SPR) triggered Ag/TiO2 photocatalyst for degradation of endocrine disturbing compound10.1016/j.apsusc.2014.06.153 ↗
44. Influencing parameters in the photocatalytic degradation of organic effluent via nanometal oxide catalyst: A review10.1155/2015/601827 ↗
45. TiO2 nanocrystal incorporated with CuO and its optical properties10.1088/2043-6262/3/4/045009 ↗
46. AC conductivity and diffuse reflectance studies of Ag–TiO2 nanoparticles, AC conductivity and diffuse reflectance studies of Nd3+ doped TiO2 nanoparticles10.1007/s11664-012-2174-7 ↗
47. Synthesis, characterization and evaluation of Ag–TiO2 nanocomposites for photocatalytic degradation of selected chlorophenols
48. Enhanced photocatalytic activity of Ag–ZnO hybrid plasmonic nanostructures prepared by a facile wet chemical method10.3762/bjnano.5.75 ↗
49. Photocatalytic activity of biogenic silver nanoparticles synthesized using yeast (Saccharomyces cerevisiae) extract10.1007/s13204-014-0392-4 ↗
50. Oxygen defect dependent variation of band gap, Urbach energy and luminescence property of anatase, anatase–rutile mixed phase and of rutile phases of TiO2 nanoparticles10.1016/j.physe.2013.10.014 ↗
51. Dispersion of defects in TiO2 semiconductor: Oxygen vacancies in the bulk and surface of rutile and anatase10.3390/catal10040397 ↗
52. Ferromagnetism due to oxygen vacancies in low dimensional oxides10.1016/j.jmmm.2021.167944 ↗
53. Fabrication of Ag/TiO2 nanoheterostructures with visible light photocatalytic function via a solvothermal approach10.1039/c2ce25161b ↗
54. Advanced removal of toluene in aerosol by adsorption and photocatalytic degradation of silver-doped TiO2/PU under visible light irradiation10.1039/c5ra23786f ↗