journal article·2019-09

Oxygen flows-dependent photocatalytic performance in Ti3+ doped TiO2 thin films

Ruijin Hong, Cao Deng, Ming Jing, Hui Lin, Chunxian Tao, Dawei Zhang

Optical Materials· Volume 95
Publisher page

Abstract

Abstract Previous studies have found that Ti3+ plays a key role in the photocatalytic performance of TiO2. In this paper, we propose a cost-effective technique to realize the tunable photocatalytic activity in Ti3+ doped TiO2 thin films by simply varying oxygen flow during the case of deposition. The factors of oxygen flow and annealing temperature to the ratio of Ti3+ in TiO2 thin films were discussed. The results showed that both absorption in UV region and the yield of hydrogen from water splitting increased with the oxygen flow and annealing temperature decreasing.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells · Gas Sensing Nanomaterials and Sensors

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

References (49)

Show source-provided references
1. Electrochemical photolysis of water at a semiconductor electrode10.1038/238037a0 ↗
2. TiO2 photocatalysis10.1016/S1389-5567(00)00002-2 ↗
3. TiO2 anatase with a bandgap in the visible region10.1021/nl503131s ↗
4. The electronic origin of the visible-light absorption properties of C-, N- and S-doped TiO2 nanomaterials10.1021/ja711023z ↗
5. Porous immobilized C coated N doped TiO2 containing in-situ generated polyenes for enhanced visible light photocatalytic activity10.1016/j.optmat.2015.08.010 ↗
6. Fabrication of Ag-Ag2O/reduced TiO2 nanophotocatalyst and its enhanced visible light driven photocatalytic performance for degradation of diclofenac solution10.1016/j.apcatb.2017.01.014 ↗
7. Hydrothermal synthesis of graphene-TiO2 nanotube composites with enhanced photocatalytic activity10.1021/cs200621c ↗
8. Improvement of gaseous pollutant photocatalysis with WO3/TiO2 heterojunctional-electrical layered system10.1016/j.jhazmat.2011.08.067 ↗
9. Enhanced photocatalytic activity of MWCNT/TiO2 heterojunction photocatalysts obtained by microwave assisted synthesis, Catal10.1016/j.cattod.2015.12.005 ↗
10. A novel biomaterial — Fe3O4:TiO2 core-shell nano particle with magnetic performance and high visible light photocatalytic activity10.1016/j.optmat.2008.05.011 ↗
11. A novel and efficient surfactant-free synthesis of Rutile TiO2 microflowers with enhanced photocatalytic activity10.1016/j.optmat.2016.03.015 ↗
12. One-step construction of N/Ti3+ codoped TiO2 nanotubes photoelectrode with high photoelectrochemical and photoelectrocatalytic performance10.1016/j.electacta.2015.11.005 ↗
13. Preparation of Ti3+ self-doped TiO2 nanoparticles and their visible light photocatalytic activity10.1016/S1872-2067(14)60234-5 ↗
14. Introducing Ti3+ defects based on lattice distortion for enhanced visible light photoreactivity in TiO2 microspheres10.1039/C7RA04885H ↗
15. Porous titania with heavily self-doped Ti3+ for specific sensing of CO at room temperature
16. Composite catalyst of reduced black TiO2-x/CNT: highly efficient counter electrode for ZnO-based dye-sensitized solar cells10.1039/C5CC07284K ↗
17. Cu(II) oxide amorphous nanoclusters grafted Ti3+ self-doped TiO2: an efficient visible light photocatalyst10.1021/cm203025b ↗
18. Facile synthesis of the Ti3+ self-doped TiO2-graphene nanosheet composites with enhanced photocatalysis10.1038/srep08591 ↗
19. Pt-enhanced mesoporous Ti3+-TiO2 with rapid bulk to surface electron transfer for photocatalytic hydrogen evolution10.1021/acsami.6b11494 ↗
20. Difference of SERS ability from titanium oxide films by Ti3+ self-doping10.1016/j.optmat.2017.08.043 ↗
21. Molecular engineering of donor–acceptor conjugated polymer/g-C3N4 heterostructures for significantly enhanced hydrogen evolution under visible-light irradiation10.1002/adfm.201804512 ↗
22. Au decorated hollow ZnO@ZnS heterostructure for enhanced photocatalytic hydrogen evolution: the insight into the roles of hollow channel and Au nanoparticles10.1016/j.apcatb.2018.12.016 ↗
23. Corundum structure oxides studied by XPS10.1088/0031-8949/28/1/013 ↗
24. Vanadium-titanium oxide catalysts for oxidation of butene to acetic acid10.1016/0021-9517(81)90113-5 ↗
25. Efficient charge separation from F-selectively etching and doping of anatase-TiO2{001} for enhanced photocatalytic hydrogen production10.1021/acsami.8b02804 ↗
26. Enhanced photoactivity of oxygen-deficient anatase TiO2 sheets with dominant {001} facets10.1021/jp907749r ↗
27. Michael · 1973
28. Structural, defect, and device behavior of hydrogenated amorphous Si near and above the onset of microcrystallinity10.1063/1.123693 ↗
29. Effect of annealing profile on defect annihilation, crystallinity and size distribution of germanium nanodots in silicon oxide matrix10.1063/1.1608480 ↗
30. Effect of oxygen partial pressure on packing density and laser damage threshold of TiO2 thin films10.1063/1.2779243 ↗
31. Hierarchical TiO2 microspheres: synergetic effect of {001} and {101} facets for enhanced photocatalytic activity10.1002/chem.201101466 ↗
32. Anatase TiO2 single crystals with a large percentage of reactive facets10.1038/nature06964 ↗
33. Photogenerated defects in shape-controlled TiO2 anatase nanocrystals: a probe to evaluate the role of crystal facets in photocatalytic processes
34. Raman spectrum of anatase, TiO210.1002/jrs.1250070606 ↗
35. Size-dependent modifications of the Raman spectrum of rutile TiO210.1063/1.2364123 ↗
36. Raman scattering study on anatase TiO2 nanocrystals10.1088/0022-3727/33/8/305 ↗
37. Role of micro-structure and interfacial properties in the higher photocatalytic activity of TiO2-supported nanogold for methanol-assisted visible-light-induced splitting of water10.1039/c1cp21194c ↗
38. Reversible phase transformation phenomenon in titanium dioxide films: evidence beyond interface-nucleation and dissolution precipitation kinetics10.1016/j.actamat.2017.12.050 ↗
39. Dimensional dependence of the optical absorption band edge of TiO2 nanotube arrays beyond the quantum effect10.1021/acs.jpcc.5b02665 ↗
40. Tungsten doped TiO2 with enhanced photocatalytic and optoelectrical properties via aerosol assisted chemical vapor deposition10.1038/srep10952 ↗
41. Physical characteristics of PbO-ZrO2-SiO2: TiO2 glass ceramics embedded with Pb2Ti2O6 cubic pyrochlore crystal phase: Part-II piezo-optical acoustic and elastic properties10.1016/j.jallcom.2017.07.158 ↗
42. Optical and dielectric features of zinc oxy fluoro borate glass ceramics with TiO2 as crystallizing agent10.1016/j.ceramint.2013.07.143 ↗
43. Bagley · 1974 · vol. 1 · 441
44. Thermal stability of titania films prepared on titanium by micro-arc oxidation10.1016/j.msea.2007.05.070 ↗
45. Nonaqueous synthesis of TiO2 nanocrystals using TiF4 to engineer morphology, oxygen vacancy concentration, and photocatalytic activity10.1021/ja300823a ↗
46. A study of constructing heterojunction between two-dimensional transition metal sulfides (MoS2 and WS2) and (101), (001) faces of TiO210.1016/j.apsusc.2017.07.056 ↗
47. Anatase TiO2 mesocrystals enclosed by (001) and (101) facets: synergistic effects between Ti3+ and facets for their photocatalytic performance10.1002/chem.201201178 ↗
48. Enhanced visible-light activity of Ti3+ self-doped TiO2 with co-exposed {001} and {101} facets10.1049/mnl.2017.0642 ↗
49. Theory of spontaneous-emission lifetime of Wannier excitons in mesoscopic semiconductor quantum disks10.1103/PhysRevB.51.10743 ↗