Structural design of hexagonal/monoclinic WO3 phase junction for photocatalytic degradation
Source abstract
Abstract
Abstract Photogenerated carriers separation is the bottleneck step to determine the photocatalytic efficiency in photocatalysis. Fabrication of the phase junction has been demonstrated to be efficient in the photogenerated carriers separation. It is important to control the phase composition in phase junction. In this work, photoatalysts with tunable hexagonal/monoclinic WO3 phase junction (h/m-WO3) were prepared by presice controlling the h-WO3 → m-WO3 phase transformation. Based on in-situ XRD results, a suitable calcination temperature (400 °C) was selected to realize the phase transition from h-WO3 to m-WO3. It is found that the junction structures can be easily regulated with increasing calcination time at 400 °C. The photocatalytic degradation of RhB results indicate that h/m-WO3 sample with 88.1 wt% h-WO3 exhibits the maximum value. The results from electrochemical impedance spectroscopy (EIS) and surface photovoltage (SPV) indicate that the separation of photogenerated carriers can be greatly improved by the phase regulation in WO3 with phase junction.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Transition Metal Oxide Nanomaterials · Advanced Photocatalysis Techniques · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (63)
Show source-provided references
1. A heterojunction design of single layer hole tunneling ZnO passivation wrapping around TiO2 nanowires for superior photocatalytic performance10.1038/srep30587 ↗
2. Ti0.85Sn0.15O2 nanocomposite: an efficient semiconductor photocatalyst for degradation of pesticides under solar light10.1007/s10854-017-8257-8 ↗
3. Effective photocatalytic degradation of anthropogenic dyes using graphene oxide grafting titanium dioxide nanoparticles under UV-light irradiation10.1016/j.jphotochem.2016.10.021 ↗
4. Photocatalytic degradation of MO and phenol over novel β-CoOOH/g-C3N4 composite under visible light irradiation10.1016/j.matlet.2018.05.134 ↗
5. Photocatalytic activity of aqueous WO3 sol for the degradation of orange II and 4-chlorophenol10.1016/j.apcata.2012.12.038 ↗
6. Photocatalytic degradation of azophloxine on porous La2Ti2O7 prepared by sol-gel method10.1016/j.solidstatesciences.2018.11.004 ↗
7. Role of thermal treatment on sol-gel preparation of porous cerium titanate: characterization and photocatalytic degradation of ofloxacin10.1016/j.mssp.2018.05.035 ↗
8. A dissolution-regeneration route to synthesize blue tungsten oxide flowers and their applications in photocatalysis and gas sensing10.1002/admi.201500417 ↗
9. The fabrication of a novel Ag3VO4/WO3 heterojunction with enhanced visible light efficiency in the photocatalytic degradation of TC
10. Morphology dependent photocatalytic activity of WO3 nanostructures10.1016/S2095-4956(15)60297-2 ↗
11. Preparation of Pt-loaded WO3 with different types of morphology and photocatalytic degradation of methylene blue10.1016/j.surfcoat.2014.11.070 ↗
12. The facile hydrothermal preparation of orthorhombic WO3 with (001) facet and its photocatalytic performance10.1166/jnn.2015.10855 ↗
13. Effects of exposed facets on photocatalytic properties of WO310.1016/j.apt.2017.07.005 ↗
14. Photocatalysis: evidence and effect of photogenerated charge transfer for enhanced photocatalysis in WO3/TiO2 heterojunction films: a computational and experimental study10.1002/adfm.201605413 ↗
15. Synthesis and enhanced visible light photocatalytic activity of WO3-BiOClxBr1−x heterojunctions with tunable energy band structure10.1016/j.ceramint.2017.06.093 ↗
16. Fabrication of BiOI/MoS2 heterojunction photocatalyst with different treatment methods for enhancing photocatalytic performance under visible-light10.1016/j.materresbull.2019.110579 ↗
17. Hollow mesoporous TiO2/WO3 sphere heterojunction with high visible-light-driven photocatalytic activity10.1016/j.materresbull.2019.110571 ↗
18. Facile fabrication of heterogeneous TiO2/BiOCl composite with superior visible-light-driven performance towards Cr(VI) and tetracycline10.1016/j.materresbull.2019.110559 ↗
19. Significantly enhanced dielectric and energy storage properties of plate-like BN@BaTiO3 composite nanofibers filled polyimide films10.1016/j.materresbull.2019.110573 ↗
20. Preparation and photocatalytic activity of WO3/TiO2 nanocomposite particles10.1016/j.matlet.2007.05.060 ↗
21. Energy storage of TiO2-WO3 photocatalysis systems in the gas phase10.1021/la026011i ↗
22. Solar photocatalytic abatement of sulfamethoxazole over Ag3PO4/WO3 composites10.1016/j.apcatb.2018.03.011 ↗
23. Deposition-precipitation preparation of Ag/Ag3PO4/WO3 nanocomposites for efficient visible-light degradation of rhodamine B under strongly acidic/alkaline conditions10.1016/j.jcis.2017.07.018 ↗
24. Heterojunction BiVO4/WO3 electrodes for enhanced photoactivity of water oxidation10.1039/c0ee00743a ↗
25. Efficient photocatalytic activity of water oxidation over WO3/BiVO4 composite under visible light irradiation10.1016/j.electacta.2008.08.058 ↗
26. Improved photocatalytic activity of WO3 through clustered Fe2O3 for organic degradation in the presence of H2O210.1021/la2012793 ↗
27. Synergism between Fe2O3 and WO3 particles: photocatalytic activity enhancement and reaction mechanism10.1016/j.molcata.2012.09.031 ↗
28. Visible-light-induced WO3/g-C3N4 composites with enhanced photocatalytic activity10.1039/c3dt00115f ↗
29. Photocatalytic reduction of CO2 over a hybrid photocatalyst composed of WO3 and graphitic carbon nitride (g-C 3N4) under visible light10.1016/j.jcou.2014.02.002 ↗
30. Template-free preparation of macro/mesoporous g-C3N4/TiO2 heterojunction photocatalysts with enhanced visible light photocatalytic activity10.1016/j.apcatb.2016.01.026 ↗
31. A novel Ag2O/CeO2 heterojunction photocatalysts for photocatalytic degradation of enrofloxacin: possible degradation pathways, mineralization activity and an in depth mechanism insight10.1016/j.apcatb.2017.09.060 ↗
32. Fabrication of vertical orthorhombic/hexagonal tungsten oxide phase junction with high photocatalytic performance10.1016/j.apcatb.2017.02.026 ↗
33. Construction of α-β phase junction on Bi4V2O11 via electrospinning retardation effect and its promoted photocatalytic performance10.1021/acs.inorgchem.6b00130 ↗
34. Enhancement of photocatalytic activity for BiPO4 via phase junction10.1039/C4TA01807A ↗
35. Effect of phase junction structure on the photocatalytic performance in overall water splitting: Ga2O3 photocatalyst as an example10.1021/acs.jpcc.5b04092 ↗
36. Understanding the charge separation and transfer in mesoporous carbonate-doped phase-junction TiO2 nanotubes for photocatalytic hydrogen production10.1016/j.apcatb.2017.11.069 ↗
37. Anatase-to-rutile phase transition in TiO2 nanoparticles irradiated by visible light10.1021/jp312325h ↗
38. Fabrication of a monoclinic/hexagonal junction in WO3 and its enhanced photocatalytic degradation of rhodamine B10.1016/S1872-2067(15)61023-3 ↗
39. Nanostructure-based WO3 photoanodes for photoelectrochemical water splitting
40. Nanostructured tungsten oxide: properties, synthesis, and applications10.1002/adfm.201002477 ↗
41. Mechanism and optimization for oxidative desulfurization of fuels catalyzed by fenton-like catalysts in hydrophobic ionic liquid10.1016/j.molcata.2013.10.017 ↗
42. Tungsten oxide-graphene oxide (WO3-GO) nanocomposite as an efficient photocatalyst, antibacterial, and anticancer agent10.1016/j.jpcs.2018.01.021 ↗
43. Efficient visible light photocatalytic degradation of 17α-ethinyl estradiol by multifunctional Ag-AgCl/ZnFe 2O4 magnetic nanocomposite10.1039/C6RA00707D ↗
44. Facile fabrication of heterostructured bismuth titanate nanocomposites: the effects of compostion and band gap structure on the photocatalytic activity performance10.1016/j.cattod.2016.12.048 ↗
45. Effect of cation intercalation on the growth of hexagonal WO3 nanorods10.1021/jp301210q ↗
46. Stability and controlled composition of hexagonal WO310.1021/cm800668x ↗
47. Hexagonal single crystal growth of WO3 nanorods along a [110] axis with enhanced adsorption capacity10.1039/c1cc00064k ↗
48. Stability and controlled composition of hexagonal WO310.1021/cm800668x ↗
49. Thermodecomposition synthesis of WO3/H2WO4 heterostructures with enhanced visible light photocatalytic properties10.1016/j.apcatb.2011.10.010 ↗
50. WO3 nanocrystals with tunable percentage of (0 0 1)-facet exposure10.1016/j.apcatb.2012.04.049 ↗
51. A visible-light-driven heterojuncted composite WO3/Bi12O17Cl2: synthesis, characterization, and improved photocatalytic performance10.1016/j.jcis.2017.07.119 ↗
52. Synthesis of hexagonal ultrathin tungsten oxide nanowires with diameters below 5 nm for enhanced photocatalytic performance10.1016/j.spmi.2018.01.032 ↗
53. Photocatalytic decomposition of seawater soluble crude oil fractions using high surface area colloid nanoparticles of TiO210.1016/S1010-6030(01)00600-1 ↗
54. Correlation between surface area and photocatalytic activity for acetaldehyde decomposition over bismuth tungstate particles with a hierarchical structure10.1021/la904274c ↗
55. Effect of TiO2 particle size on the photocatalytic reduction of CO210.1016/j.apcatb.2009.01.010 ↗
56. Correlation between particle size of Bi2O3 nanoparticles and their photocatalytic activity for degradation and mineralization of atrazine10.1016/j.molliq.2017.07.023 ↗
57. Crystal transformation of 2D tungstic acid H2WO4 to WO3 for enhanced photocatalytic water oxidation10.1016/j.jcis.2017.12.066 ↗
58. Highly efficient visible-light-induced photoactivity of Z-scheme Ag2CO3/Ag/WO3 photocatalysts for organic pollutant degradation10.1039/C7EN00713B ↗
59. K2SO4-assisted hexagonal/monoclinic WO3 phase junction for efficient photocatalytic degradation of RhB10.1021/acsaem.8b00168 ↗
60. High-performance silver nanoparticles coupled with monolayer hydrated tungsten oxide nanosheets: the structural effects in photocatalytic oxidation of cyclohexane10.1016/j.jcis.2018.01.057 ↗
61. Charge transfer and intrinsic electronic properties of RGO-WO3 nanostructures for efficient photoelectrochemical and photocatalytic applications10.1016/j.mssp.2017.10.041 ↗
62. An efficient bicomponent TiO2/SnO2 nanofiber photocatalyst fabricated by electrospinning with a side-by-side dual spinneret method10.1021/nl061898e ↗
63. Imaging photogenerated charge carriers on surfaces and interfaces of photocatalysts with surface photovoltage microscopy10.1039/C8CS00320C ↗