journal article·2021-08

In-situ growth of TiO2 phase junction nanorods with Ti3+ and oxygen vacancies to enhance photocatalytic activity

Zhonghao Ji, Jiang Wu, Tao Jia, Cheng Peng, Yixuan Xiao, Zhiqiang Liu, Qizhen Liu, Yuhang Fan, Jiajie Han, Liangsheng Hao

Publisher page

Abstract

Abstract The titanium dioxide phase junction nanorods with Ti3+ and oxygen vacancies (Ov) were successfully prepared by in-situ growth method and vacuum freeze-drying, which was used for photocatalytic removal of gas phase mercury. Experimental results and characterization data indicate that the phase junction, Ti3+ and Ov synergistically promote photogenerated electron-hole separation and transfer efficiency and photocatalytic activity. The efficiency of the most efficient sample reaches 63.77 %, which is about 3.6 times that of commercial P25. Finally, we proposed the reaction mechanism that the phase junction, Ti3 + and Ov in TiO2 nanorods form an effective charge transport channel. This work provides new ideas for the effective utilization of solar energy and the design of photocatalysts.
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 (61)

Show source-provided references
1. Hollow nanostructures for photocatalysis: advantages and challenges10.1002/adma.201801369 ↗
2. Electrochemical photolysis of water at a semiconductor electrode10.1038/238037a0 ↗
3. Production of H2 in the photocatalytic reactions of ethane on TiO2 -supported noble metals10.1016/j.ijhydene.2016.06.020 ↗
4. Construction of urchin-like ZnIn2S4-Au-TiO2 heterostructure with enhanced activity for photocatalytic hydrogen evolution10.1016/j.apcatb.2018.04.038 ↗
5. Revealing the double-edged sword role of graphene on boosted charge transfer versus active site control in TiO2 nanotube Arrays@RGO/MoS2 heterostructure10.1002/smll.201704531 ↗
6. Visible light driven V-Doped TiO2 photocatalyst and its photooxidation of ethanol10.1021/jp004295e ↗
7. A comparative study of nanometer sized Fe(III)-doped TiO2 photocatalysts: synthesis, characterization and activity10.1039/B303716A ↗
8. Visible-light photocatalysis in nitrogen-doped titanium oxides
9. Improved high temperature stability of anatase TiO2 photocatalysts by N, F, P co-doping10.1016/j.matdes.2016.01.142 ↗
10. Preparation and visible-light-driven photoelectrocatalytic properties of boron-doped TiO2 nanotubes10.1016/j.matchemphys.2008.01.036 ↗
11. Improved photocatalytic activity of g-C3N4/TiO2 composites prepared by a simple impregnation method10.1016/j.jphotochem.2012.12.014 ↗
12. Cascade charge separation mechanism by ternary heterostructured BiPO4/TiO2/g-C3N4 photocatalyst10.1016/j.apcatb.2015.11.027 ↗
13. The role of hydrothermal conditions in determining 1D TiO 2 nanomaterials bandgap energies and crystal phases10.1016/j.materresbull.2018.04.021 ↗
14. Nanoneedle and nanotubular titanium dioxide – PES mixed matrix membrane for photocatalysis10.1016/j.apcatb.2014.05.054 ↗
15. Novel TiO2 prepared from titanyl sulphate by using pressurized water processing and its photocatalytic activity evaluation10.1016/j.materresbull.2017.07.010 ↗
16. A water‐soluble titanium complex for the selective synthesis of nanocrystalline brookite, rutile, and anatase by a hydrothermal method
17. Highly photocatalytic activity of brookite/rutile TiO2 nanocrystals with semi-embedded structure10.1016/j.apcatb.2015.07.003 ↗
18. An integrated low temperature approach to highly photoactive nanocrystalline mesostructured titania10.1016/j.catcom.2006.08.030 ↗
19. Mesoporous Au/TiO2 nanocomposites with enhanced photocatalytic activity10.1021/ja069113u ↗
20. Solvothermal Synthesis And Photoreactivity Of Anatase Tio_2 Nanosheets With Dominant {001} Facets10.1021/ja808790p ↗
21. Single-crystal-like Titania Mesocages10.1002/ange.201004972 ↗
22. Mesoporous anatase titania hollow nanostructures though silica-protected calcination10.1002/adfm.201101927 ↗
23. Transformation of brookite-type TiO2 nanocrystals to rutile: correlation between microstructure and photoactivity10.1039/b514632a ↗
24. Directly probing charge separation at interface of TiO2 phase junction10.1021/acs.jpclett.7b00285 ↗
25. One-dimension TiO2 nanostructures with enhanced activity for CO2 photocatalytic reduction10.1016/j.apsusc.2018.09.114 ↗
26. Synergistic effect of surface defect and interface heterostructure on TiO2/BiOIO3 photocatalytic oxide gas-phase mercury10.1016/j.materresbull.2018.03.040 ↗
27. An economic method to prepare vacuum activated photocatalysts with high photo-activities and photosensitivities10.1039/c1cc10537j ↗
28. Enhanced photocatalytic performance of TiO2 based on synergistic effect of Ti3+ self-doping and slow light effect10.1016/j.apcatb.2014.06.020 ↗
29. Surface engineering of g-C3 N4 by stacked BiOBr sheets rich in oxygen vacancies for boosting photocatalytic performance10.1002/anie.201914949 ↗
30. Photocatalytic oxidation of gas-phase Hg0 by CuO/TiO210.1016/j.apcatb.2015.04.044 ↗
31. Fabrication of phase and morphology controlled pure rutile and rutile/anatase TiO2 nanostructures in functional ionic liquid/water10.1016/j.apsusc.2015.11.092 ↗
32. Highly efficient photodegradation of 4-nitrophenol over the nano-TiO2 obtained from chemical bath deposition technique10.1007/s11164-019-04032-7 ↗
33. A facile synthesis of ZnWO4 nanoparticles by microwave assisted technique and its application in photocatalysis10.1016/j.materresbull.2012.12.002 ↗
34. Controlling dominantly reactive (010) facets and impurity level by in-situ reduction of BiOIO3 for enhancing photocatalytic activity10.1016/j.apcatb.2018.03.046 ↗
35. The enhancement of photocatalytic hydrogen production via Ti3+ self-doping black TiO2/g-C3N4 hollow core-shell nano-heterojunction10.1016/j.apcatb.2018.09.079 ↗
36. In-situ-Reduced synthesis of Ti3+ self-doped TiO2/g-C3N4 heterojunctions with high photocatalytic performance under LED light irradiation10.1021/am508505n ↗
37. Promoted V 2 O 5 /TiO 2 catalysts for selective catalytic reduction of NO with NH 3 at low temperatures10.1016/j.apcatb.2015.10.044 ↗
38. Fabrication of BiOI/MoS2 heterojunction photocatalyst with different treatment methods for enhancing photocatalytic performance under visible-light10.1016/j.materresbull.2019.110579 ↗
39. Improved electron-hole separation and migration in V2O5/rutile-anatase photocatalyst system with homo-hetero junctions and its enhanced photocatalytic performance10.1016/j.cej.2017.07.146 ↗
40. Insight into the dual-channel charge-charrier transfer path for nonmetal plasmonic tungsten oxide based composites with boosted photocatalytic activity under full-spectrum light10.1016/j.apcatb.2018.04.075 ↗
41. Tungsten oxides for photocatalysis, electrochemistry, and phototherapy10.1002/adma.201501217 ↗
42. One-pot hydrothermal synthesis of SnO2/BiOBr heterojunction photocatalysts for the efficient degradation of organic pollutants under visible light10.1021/acsami.8b09617 ↗
43. Atmospheric mercury footprints of nations10.1021/es503977y ↗
44. In situ Co-crystallization for fabrication of g-C3N4/Bi5O7I heterojunction for enhanced visible-light photocatalysis10.1021/acs.jpcc.5b03707 ↗
45. Fabrication of BiOIO3 with induced oxygen vacancies for efficient separation of the electron-hole pairs10.1016/j.apcatb.2017.06.041 ↗
46. Hierarchical TiO 2 nanofibres as photocatalyst for CO 2 reduction: influence of morphology and phase composition on catalytic activity10.1016/j.jcou.2016.04.002 ↗
47. Toward a visible light-driven photocatalyst: the effect of midgap-states-Induced energy gap of undoped TiO2Nanoparticles10.1021/cs501539q ↗
48. Nanotechnology, Fabrication and Enhanced Visible Light Photocatalytic Activity of Fluorine Doped TiO2 by Loaded with Ag
49. Decoration of biogenic AgNPs on template free ZnO nanorods for sunlight driven photocatalytic detoxification of dyes and inhibition of bacteria10.1007/s10854-016-5225-7 ↗
50. Photocatalytic oxidation of gas-phase Hg0 on the exposed reactive facets of BiOI/BiOIO3 heterostructures10.1016/j.apcatb.2016.11.013 ↗
51. In situ self-growing 3D hierarchical BiOBr/BiOIO3 Z-scheme heterojunction with rich oxygen vacancies and iodine ions as carriers transfer dual-channels for enhanced photocatalytic activity10.1016/j.cej.2020.125258 ↗
52. The preparation and characterization of La doped TiO2 nanoparticles and their photocatalytic activity10.1016/j.jssc.2004.05.064 ↗
53. Review of photoluminescence performance of nano-sized semiconductor materials and its relationships with photocatalytic activity10.1016/j.solmat.2005.11.007 ↗
54. Surface defect engineering of Fe-doped Bi7O9I3 microflowers for ameliorating charge-carrier separation and molecular oxygen activation10.1016/j.apcatb.2020.119727 ↗
55. Dual-channel charges transfer strategy with synergistic effect of Z-scheme heterojunction and LSPR effect for enhanced quasi-full-spectrum photocatalytic bacterial inactivation: new insight into interfacial charge transfer and molecular oxygen activation10.1016/j.apcatb.2019.118465 ↗
56. Synthesis amorphous TiO2 with oxygen vacancy as carriers transport channels for enhancing photocatalytic activity10.1016/j.matlet.2020.127465 ↗
57. Sustainable molecular oxygen activation with oxygen vacancies on the {001} facets of BiOCl nanosheets under solar light10.1039/C4NR04810E ↗
58. Localized excitation of Ti(3+) ions in the photoabsorption and photocatalytic activity of reduced rutile TiO210.1021/jacs.5b04483 ↗
59. Synergetic effect of Ti(3+) and oxygen doping on enhancing photoelectrochemical and photocatalytic properties of TiO2/g-C3N4 heterojunctions10.1021/acsami.6b16191 ↗
60. Mesoporous black TiO2-x/Ag nanospheres coupled with g-C3N4 nanosheets as 3D/2D ternary heterojunctions visible light photocatalysts10.1016/j.jhazmat.2017.09.031 ↗
61. High-efficiency photocatalytic performance of Cr–SrTiO3-modified black TiO2 nanotube arrays