Highly porous SnO2/TiO2 electrospun nanofibers with high photocatalytic activities
Source abstract
Abstract
Highly porous SnO2/TiO2 composite nanofibers were prepared by electrospinning based on water/oil phase separation effect, and their photocatalytic degradation abilities of Rhodamine B (RhB) under UV-visible light irradiation was assessed. Results indicated that the porous SnO2/TiO2 nanofibers show a significantly improved reaction rate (about 99% RhB dye degraded in 30 min), which is about 2.7 times higher than that of the pure TiO2 nanofibers (about 97% RhB dye in 80 min). The specific surface area of porous SnO2/TiO2 nanofibers is 55.6 m(2)/g, which is 2.85 times larger than that of pure TiO2 nanofibers (19.5 m(2)/g). The SnO2 addition into TiO2 suppressed the recombination of photo-generated electron hole pairs, and highly porous structures within the nanofibers improved the utilization efficiency of light due to multiple photon reflections. In addition, it is worth being mentioned that more than 60% RhB dye was degraded during the first 10 min by the highly porous SnO2/TiO2 nanofibers. The high photocatalytic activity of porous nanofibers was rooted from changed energy level structure due to addition of Sn and to lots of bulk oxygen vacancies formed in SnO2/TiO2 nanofibers. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Gas Sensing Nanomaterials and Sensors · TiO2 Photocatalysis and Solar Cells
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. Light-induced amphiphilic surfaces10.1038/41233 ↗
3. Recent developments of metal oxide semiconductors as photocatalysts in advanced oxidation processes (AOPs) for treatment of dye waste-water10.1002/jctb.2636 ↗
4. Electrospun TiO2/SnO2 nanofibers with innovative structure and chemical properties for highly efficient photocatalytic H2 generation10.1016/j.ijhydene.2012.04.098 ↗
5. One-step synthesis of bifunctional TiO2 catalysts and their photocatalytic activity10.1021/jp100519q ↗
6. Enhanced response characteristics of SnO2 thin film based NO2 gas sensor10.1016/j.snb.2011.12.061 ↗
7. Optical and dielectric properties of the co-doped TiO210.1021/ie901191z ↗
8. UV- and visible-light photocatalytic activity of simultaneously deposited and doped Ag/Ag(I)-TiO2 photocatalyst10.1021/jp305774n ↗
9. Review on modified TiO2 photocatalysis under UV/visible light: selected results and related mechanisms on interfacial charge carrier transfer dynamics10.1021/jp204364a ↗
10. The role of metal ion dopants in quantum-sized TiO2: correlation between photoreactivity and charge carrier recombination dynamics10.1021/j100102a038 ↗
11. Preparation, characterization and visible-light-driven photocatalytic activity of Fe-doped titania nanorods and first-principles study for electronic structures10.1016/j.apcatb.2009.04.021 ↗
12. Influence of Mn2+ and Mo6+ dopants on the phase transformations of TiO2 lattice and its photocatalytic activity under solar illumination10.1016/j.catcom.2008.11.041 ↗
13. Kim · TiO2 nanoparticles loaded on graphene/carbon composite nanofibers by electrospinning for increased photocatalysis Carbon · 2012 · 50 · 2472
14. Visible-light photocatalysis in nitrogen-doped titanium oxides10.1126/science.1061051 ↗
15. Sensitization of photocatalytic activity of S- or N-doped TiO2 particles by adsorbing Fe3+ cations10.1016/j.apcata.2005.12.010 ↗
16. Effects of F-doping on the photocatalytic activity and microstructures of nanocrystalline TiO2 powders10.1021/cm020027c ↗
17. Graphene-based semiconductor photocatalysts10.1039/C1CS15172J ↗
18. Nitrogen self-doped nanosized TiO2 sheets with exposed {001} facets for enhanced visible-light photocatalytic activity10.1039/c1cc11740h ↗
19. a facile in situ hydrothermal method to SrTiO3/TiO2 nanofiber heterostructures with high photocatalytic activity10.1021/la104195v ↗
20. Photocatalytic degradation of methyl orange using a TiO2/Ti mesh electrode with 3D nanotube arrays10.1021/am201220e ↗
21. Photocatalytic comparison of TiO2 nanoparticles and electrospun TiO2 nanofibers: effects of mesoporosity and interparticle charge transfer10.1021/jp104317x ↗
22. Highly photoactive, low bandgap TiO2 nanoparticles wrapped by graphene10.1002/adma.201104110 ↗
23. Structural properties and photoluminescence of TiO2 nanofibers were fabricated by electrospinning10.1016/j.jallcom.2007.07.018 ↗
24. Visible light photocatalytic water splitting for hydrogen production from N-TiO2 rice grain shaped electrospun nanostructures10.1016/j.ijhydene.2011.12.015 ↗
25. Preparation of highly porous TiO2 nanotubes and their catalyticapplications10.1039/C1JM15242D ↗
26. SnO2–TiO2 core–shell nanowire structures: investigations on solid state reactivity and photocatalytic behavior10.1021/jp201901b ↗
27. Mesoporous TiO2/α-Fe2O3: bifunctional composites for effective elimination of arsenite contamination through simultaneous photocatalytic oxidation and adsorption10.1021/jp806594m ↗
28. Carbonaceous nanomaterials for the enhancement of TiO2 photocatalysis10.1016/j.carbon.2010.10.010 ↗
29. Synthesis of natural cellulose-templated TiO2/Ag nanosponge composites and photocatalytic properties10.1021/am3004363 ↗
30. Enhancement of the visible-light photocatalytic activity of In2O3–TiO2 nanofiber heteroarchitectures10.1021/am201499r ↗
31. Co-electrospinning of core–shell fibers using a single-nozzle technique10.1021/la063194q ↗
32. Preparation of porous polyacrylonitrile fibers by electrospinning a ternary system of PAN/DMF/H2O10.1016/j.matlet.2010.08.006 ↗
33. Photocatalytic activities of electrospun tin oxide doped titanium dioxide nanofibers10.1016/j.ceramint.2012.02.030 ↗
34. Synthesis and photocatalytic property of SnO2/TiO2 nanotubes composites10.1016/j.jhazmat.2006.06.035 ↗
35. SnO2 nanostructures-TiO2 nanofibers heterostructures controlled fabrication and high photocatalytic properties10.1021/ic9005983 ↗
36. One-step synthesis of SnO2 and TiO2 hollow nanostructures with various shapes and their enhanced lithium storage properties10.1002/chem.201103842 ↗
37. Preparation and photocatalytic of a nanometer ZnO–SnO2 coupled oxide10.1016/j.apcata.2003.10.025 ↗
38. Fabrication of TiO2/ZnO composite nanofibers by electrospinning and their photocatalytic property10.1016/j.matchemphys.2010.02.002 ↗
39. Synthesis and photocatalytic property of SnO2/TiO2 nanotubes composites10.1016/j.jhazmat.2006.06.035 ↗
40. Catalysis with TiO2/gold nanocomposites: effect of metal particle size on the fermi level equilibration10.1021/ja0315199 ↗
41. New insight for enhanced photocatalytic activity of TiO2 by doping carbon nanotubes: a case study on degradation of benzene and methyl orange10.1021/jp909855p ↗
42. Effect of agglomerated state in mesoporous TiO2 on the morphology of photodeposited Pt and photocatalytic activity10.1021/jp303118q ↗
43. TiO2 films with rich bulk oxygen vacancies prepared by electrospinning for dye-sensitized solar cells10.1016/j.jpowsour.2012.04.042 ↗
44. Photoluminescence in TiO2 anatase single crystal10.1016/0038-1098(93)90427-O ↗
45. Preparation and photoluminescence of highly ordered TiO2 nanowire arrays10.1063/1.1350959 ↗
46. Size effects on the photophysical properties of colloidal anatase TiO2 particles: size quantization versus direct transitions in this indirect semiconductor10.1021/j100045a026 ↗
47. Synthesis of nanophase TiO2 by ion beam sputtering and cold condensation10.1142/S0217979298001538 ↗
48. Temperature dependence of the luminescence of TiO2 powder10.1007/BF00324533 ↗
49. Infrared absorption of reduced rutile TiO2 single10.1103/PhysRev.113.1222 ↗