Preparation of W and N, S-codoped titanium dioxide with enhanced photocatalytic activity under visible light irradiation
Source abstract
Abstract
Abstract In this work, the preparation and physiochemical characterization of tungsten, nitrogen and sulfur codoping TiO2 photocatalysts (W, N, S-TiO2) was undertaken. W, N, S-TiO2 nanoparticles were synthesized via the precipitation-impregnation method. To investigate the structural, optical, and electronic properties, the as-prepared W, N, S-TiO2 photocatalysts were characterized by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HR-TEM), X-ray photoelectron spectroscopy (XPS), and ultraviolet-visible diffuse reflection spectrum (DRS). W, N, S-TiO2 samples showed photo-absorption in the visible light region and higher visible light photocatalytic activity than TiO2. 0.011W, 0.030(N, S)-TiO2 exhibited the highest visible light photocatalytic activity, and the photocatalyic degradation activity of 0.011W,0.030(N,S)-TiO2 is nearly 10 times higher than that of TiO2. Compared with the undoped TiO2, the improved photocatalytic activity of W, N, S-TiO2 samples under visible light irradiation is attributed to the increase of the visible light absorption and the reduction in photogenerated electron-hole recombination.
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Research context
OpenAlex topics: Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells · Catalytic Processes in Materials Science
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (51)
Show source-provided references
1. Photochemical reduction of oxygen adsorbed to nanocrystalline TiO2 films: a transient absorption and oxygen scavenging study of different TiO2 preparations10.1021/jp064591c ↗
2. Photocatalytic degradation of methyl orange with W-doped TiO2 synthesized by a hydrothermal method10.1016/j.matchemphys.2008.05.005 ↗
3. Liquid phase deposition of tungsten doped TiO2 films for visible light photoelectrocatalytic degradation of dodecyl-benzenesulfonate10.1016/j.cej.2010.12.020 ↗
4. Photochromism-based detection of volatile organic compounds by W-doped TiO2 nanofibers10.1016/j.jcis.2011.06.041 ↗
5. Doping level effect on visible-light irradiation W-doped TiO2-anatase photocatalysts for Congo red photodegradation10.1016/j.crci.2014.01.019 ↗
6. Visible light photocatalysis in nitrogen-doped titanium oxides10.1126/science.1061051 ↗
7. Photocatalytic removal of spiramycin from wastewater under visible light with N-doped TiO2 photocatalysts10.1016/j.cej.2014.02.071 ↗
8. Synthesis of N-doped TiO2 photocatalyst for low-concentration elemental mercury removal under various gas conditions10.1016/j.apcatb.2014.05.022 ↗
9. Effect of solar simulated N-doped TiO2 photocatalysis on the inactivation and antibiotic resistance of an E. coli strain in biologically treated urban wastewater10.1016/j.apcatb.2013.07.033 ↗
10. Facile fabrication of N-doped TiO2 nanocatalyst with superior performance under visible light irradiation10.1016/j.jssc.2012.12.020 ↗
11. Photocatalytic activity of S-doped TiO2 photocatalyst under visible light10.1246/cl.2003.364 ↗
12. Low-temperature solvothermal synthesis of visible-light-responsive S-doped TiO2 nanocrystal10.1016/j.apsusc.2011.12.092 ↗
13. Development of visible-light active S cation-doped TiO2 photocatalyst10.2174/138527210790963386 ↗
14. A simple method for synthesis of S-doped TiO2 of high photocatalytic activity10.1007/s10562-009-0217-3 ↗
15. Supercritical preparation of a highly active S-doped TiO2 photocatalyst for methylene blue mineralization10.1021/es062680x ↗
16. Effects of V and Zn codoping on the microstructures and photocatalytic activities of nanocrystalline TiO2 films10.1016/j.ceramint.2013.02.080 ↗
17. Enhanced photoelectrochemical properties of TiO2 by codoping with tungsten and silver10.1063/1.4871977 ↗
18. Origin of photocatalytic activity of W/N-codoped TiO2: H2 production and DFT calculation with GGA plus U10.1016/j.apcatb.2014.01.028 ↗
19. Visible light-driven photocatalysis of W, N co-doped TiO210.1016/j.partic.2012.06.018 ↗
20. Significant enhancement in the photocatalytic activity of N, W co-doped TiO2 nanomaterials for promising environmental applications10.1088/0957-4484/23/47/475706 ↗
21. N- and/or W-(co) doped TiO2-anatase catalysts: effect of the calcination treatment on photoactivity10.1016/j.apcatb.2009.12.028 ↗
22. One-step hydrothermal synthesis of nitrogen and tungsten codoped TiO2 nanorods with high visible light photocatalytic activity10.1007/s00339-013-7896-8 ↗
23. W,N-codoped TiO2-anatase: a sunlight-operated catalyst for efficient and selective aromatic hydrocarbons photo-oxidation10.1021/jp902618g ↗
24. A mesoporous WN co-doped titania nanomaterial with enhanced photocatalytic aqueous nitrate removal activity under visible light10.1039/c1cy00042j ↗
25. One-pot synthesis of twist-like helix tungsten–nitrogen-codoped titania photocatalysts with highly improved visible light activity in the abatement of phenol10.1016/j.apcatb.2008.01.022 ↗
26. Study of new states in visible light active W, N co-doped TiO2 photo catalyst10.1016/j.materresbull.2012.08.032 ↗
27. Synthesis, characterization, and photocatalytic activities of nanoparticulate N, S-codoped TiO2 having different surface-to-volume ratios10.1021/jp910486f ↗
28. Abatement of organics and E. coli by N, S co-doped TiO2 under UV and visible light. Implications of the formation of singlet oxygen (1O2) under visible light10.1016/j.apcatb.2008.10.025 ↗
29. N, S co-doped-TiO2/fly ash beads composite material and visible light photocatalytic activity10.1016/j.apsusc.2013.07.086 ↗
30. Photocatalytic degradation of 4BS dye by N,S-codoped TiO2 pillared montmorillonite photocatalysts under visible-light irradiation10.1021/jp803939z ↗
31. New generation photocatalysts: how tungsten influences the nanostructure and photocatalytic activity of TiO2 in the UV and visible regions10.1021/am2008757 ↗
32. Phase composition, crystal structure and microstructure of silver and tungsten doped TiO2 nanopowders with tuneable photochromic behavior10.1016/j.actamat.2013.05.041 ↗
33. WO3–TiO2 vs. TiO2 photocatalysts: effect of the W precursor and amount on the photocatalytic activity of mixed oxides10.1016/j.cattod.2013.01.008 ↗
34. Preparation of novel Sb2O3/WO3 photocatalysts and their activities under visible light irradiation10.1016/j.materresbull.2013.02.055 ↗
35. Tungsten and nitrogen co-doped TiO2 nano-powders with strong visible light response10.1016/j.apcatb.2008.01.037 ↗
36. Plasmon induced nano Au particle decorated over S,N-modified TiO2 for exceptional photocatalytic hydrogen evolution under visible light10.1021/am403865r ↗
37. Visible light-sensitized S,N and C co-doped polymorphic TiO2 for photocatalytic destruction of microcystin-LR10.1016/j.apcatb.2013.07.058 ↗
38. A novel CdS/S-TiO2 nanotubes photocatalyst with high visible light activity10.1016/j.seppur.2008.12.014 ↗
39. Efficient visible-light-induced photocatalytic disinfection on sulfur-doped nanocrystalline titania10.1021/es035374h ↗
40. The effect of solvent in the sol–gel synthesis of visible light-activated, sulfur-doped TiO2 nanostructured porous films for water treatment10.1016/j.cattod.2013.11.052 ↗
41. Fabrication and photocatalytic properties of cationic and anionic S-doped TiO2 nanofibers by electrospinning10.1016/j.apcatb.2013.08.004 ↗
42. Photo-catalytic degradation of dimethyl disulfide on S and metal-ions co-doped TiO2 under visible-light irradiation10.1016/j.apcata.2013.10.006 ↗
43. Photodegradation of Orange II under visible light using Cu–Ni/TiO2: effect of calcination temperature10.1016/j.cej.2012.01.052 ↗
44. Synthesis and characterization of nitrogen-doped group IVB visible-light-photoactive metal oxide nanoparticles10.1002/adma.200700511 ↗
45. Eosin Y-sensitized nitrogen-doped TiO2 for efficient visible light photocatalytic hydrogen evolution10.1016/j.molcata.2007.12.005 ↗
46. Systematic effects of S-doping on the activity of V2O5/TiO2 catalyst for low-temperature NH3-SCR10.1016/j.cej.2013.05.056 ↗
47. Doping level effect on visible-light irradiation W-doped TiO2–anatase photocatalysts for Congo red photodegradation10.1016/j.crci.2014.01.019 ↗
48. Unraveling the cooperative mechanism of visible-light absorption in bulk N, Nb Codoped TiO2 powders of nanomaterials10.1021/jp507143z ↗
49. Tungsten-doped TiO2 vs pure TiO2 photocatalysts: effects on photobleaching kinetics and mechanism10.1021/jp0769781 ↗
50. Sol–gel synthesis, characterisation and photocatalytic activity of pure, W-, Ag- and W/Ag co-doped TiO2 nanopowders10.1016/j.cej.2012.11.018 ↗
51. Supercritical preparation of a highly active S-doped TiO2 photocatalyst for methylene blue mineralization10.1021/es062680x ↗