The formation of direct Z-scheme Ag/BiOCl/AgIO3 heterojunction and its degradation stability
Source abstract
Abstract
Abstract Ag and AgIO3 were simultaneously deposited on the (0 0 1) facet of BiOCl by photoreduction method. The difference of work function between Ag and BiOCl led the electrons to flow from Ag to BiOCl, which raised the Fermi energy level of BiOCl and constructed direct Z-scheme Ag/BiOCl/AgIO3 heterojunction. The electrons that flowed from Ag to BiOCl scrambled for the holes in the primary excitons of BiOCl and formed the secondary excitons, while the electrons in the primary excitons were released and reached the conduction band of BiOCl to participate in the reduction reaction. Finally, the dissociation of excitons and separation of carriers were accelerated, and the degradation rate under solar light of Ag/BiOCl/AgIO3 to RhB was 2.8 and 4.6 times that of BiOCl and AgIO3, respectively. It could also degrade RhB under near-infrared light. Furthermore, the released electrons from the primary excitons could be accepted by AgIO3 to produce AgI, and the type-II Ag/BiOCl/AgI heterojunction was formed. The Ag/BiOCl/AgI exhibited excellent degradation stability and could still degrade RhB under near-infrared light.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Perovskite Materials and Applications · Covalent Organic Framework Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (52)
Show source-provided references
1. Defect-mediated Z-scheme BiO2-x/Bi2O2.75 photocatalyst for full spectrum solar-driven organic dyes degradation10.1016/j.apcatb.2019.04.044 ↗
2. Insights into the improved photocatalytic performance of fluorine surface modified mpg-C3N4 at room temperature under aqueous conditions10.1016/j.apcata.2019.04.004 ↗
3. Highly efficient visible/NIR photocatalytic activity and mechanism of Yb3+/Er3+ co-doped Bi4O5I2 up-conversion photocatalyst10.1016/j.seppur.2020.117040 ↗
4. metal-free 0D–1D NiCoP/Mn0.3Cd0.7S nanocomposites for highly efficient photocatalytic H2 evolution under visible-light irradiation10.1088/1361-6528/ab8850 ↗
5. Use of synergistic effects of the co-catalyst, p-n heterojunction, and porous structure for improvement of visible-light photocatalytic H2 evolution in porous Ni2O3/Mn0.2Cd0.8S/Cu3P@Cu2S
6. Synthesis and enhanced piezophotocatalytic activity of Ag2O/K0.5Na0.5NbO3 composites10.1016/j.jpcs.2019.109326 ↗
7. The modulation of g-C3N4 energy band structure by excitons capture and dissociation10.1016/j.materresbull.2019.110685 ↗
8. The enhanced photocatalytic activity of Ag-OVs-(001) BiOCl by separating secondary excitons under double SPR effects10.1016/j.apsusc.2020.146689 ↗
9. Giant Electron-Hole Interactions in Confined Layered Structures for Molecular Oxygen Activation10.1021/jacs.6b12273 ↗
10. Exploring the effects of crystal facet in Bi2WO6/BiOCl heterostructures on photocatalytic properties : A first-principles theoretical study10.1016/j.apsusc.2018.11.006 ↗
11. Synergistic Effect of Charge Generation and Separation in Epitaxially Grown BiOCl/Bi2S3 Nano-Heterostructure10.1021/acsami.8b03390 ↗
12. Turning the unwanted surface bismuth enrichment to favourable BiVO4/BiOCl Heterojunction for enhanced Photoelectrochemical performance10.1016/j.apcatb.2018.09.060 ↗
13. Hybrid density functional study on the mechanism for the enhanced photocatalytic properties of the ultrathin hybrid layered nanocomposite g-C3N4/BiOCl10.1016/j.apsusc.2017.11.259 ↗
14. Investigation of the charges separation and transfer behavior of BiOCl/BiF3 heterojunction10.1016/j.apcatb.2016.12.062 ↗
15. Direct Z-scheme photocatalysts : Principles, synthesis, and applications10.1016/j.mattod.2018.04.008 ↗
16. Heterojunction Photocatalysts10.1002/adma.201601694 ↗
17. A new understanding of the photocatalytic mechanism of the direct Z-scheme g-C3N4/TiO2 heterostructure10.1039/C6CP06147H ↗
18. A Hierarchical Z-Scheme CdS-WO3 Photocatalyst with Enhanced CO2 Reduction Activity10.1002/smll.201500926 ↗
19. All-solid-state Z-scheme photocatalytic systems10.1002/adma.201400288 ↗
20. All-solid-state Z-scheme in CdS-Au-TiO2 three-component nanojunction system10.1038/nmat1734 ↗
21. Photocatalytic properties of Bi2WO6/BiPO4 Z-scheme photocatalysts induced by double internal electric fields10.1016/j.apsusc.2018.06.153 ↗
22. Surprise in the phosphate modification of BiOCl with oxygen vacancy: In situ construction of hierarchical Z-scheme BiOCl-OV-BiPO4 photocatalyst for the degradation of carbamazepine10.1016/j.cej.2018.10.216 ↗
23. Z-Scheme BiOCl-Au-CdS Heterostructure with Enhanced Sunlight-Driven Photocatalytic Activity in Degrading Water Dyes and Antibiotics10.1021/acssuschemeng.7b01157 ↗
24. In-situ synthesis of Z-scheme Ag2CO3/Ag/AgNCO heterojunction photocatalyst with enhanced stability and photocatalytic activity10.1016/j.apsusc.2018.09.059 ↗
25. Hierarchical fabrication Z-scheme photocatalyst of BiVO4(0 4 0)-Ag@CdS for enhanced photocatalytic properties under simulated sunlight irradiation10.1016/j.jcis.2019.04.043 ↗
26. A Unique Ternary Semiconductor-(Semiconductor/Metal) Nano-Architecture for Efficient Photocatalytic Hydrogen Evolution10.1002/anie.201505442 ↗
27. Material descriptors for photocatalyst/catalyst design10.1002/wcms.1369 ↗
28. 1D Colloidal Hetero-Nanomaterials with Programmed Semiconductor Morphology and Metal Location for Enhancing Solar Energy Conversion10.1002/smll.201602629 ↗
29. Towards full-spectrum photocatalysis: Achieving a Z-scheme between Ag2S and TiO2 by engineering energy band alignment with interfacial Ag10.1007/s12274-015-0862-3 ↗
30. In situ solid-state fabrication of hybrid AgCl/AgI/AgIO3 with improved UV-to-visible photocatalytic performance
31. A BiPO4/BiOCl heterojunction photocatalyst with enhanced electron-hole separation and excellent photocatalytic performance10.1016/j.apsusc.2015.02.175 ↗
32. Achieving tunable photocatalytic activity enhancement by elaborately engineering composition-adjustable polynary heterojunctions photocatalysts10.1016/j.apcatb.2016.04.036 ↗
33. Ultrathin g-C3N4 Nanosheets Coupled with AgIO3 as Highly Efficient Heterostructured Photocatalysts for Enhanced Visible-Light10.1002/chem.201502945 ↗
34. Core-shell g-C3N4@ZnO composites as photoanodes with double synergistic effects for enhanced visible-light photoelectrocatalytic activities10.1016/j.apcatb.2017.05.034 ↗
35. TiO2-MnOx-Pt Hybrid Multiheterojunction Film Photocatalyst with Enhanced Photocatalytic CO2-Reduction Activity10.1021/acsami.8b02552 ↗
36. Preparation and photocatalytic performance of MWCNTs/BiOCl: Evidence for the superoxide radical participation in the degradation mechanism of phenol10.1016/j.apsusc.2019.02.195 ↗
37. Maroni · STUDIES OF THE IODATE ION IN MOLTEN NITRATE SOLUTIONS, J. inorg, nucl. Chem. · 1972 · 34 · 3049
38. In-situ precipitation synthesis of novel BiOCl/Ag2CO3 hybrids with highly efficient visible-light-driven photocatalytic activity10.1016/j.jallcom.2016.05.168 ↗
39. Photocatalytic properties of the g-C3N4/{010} facets BiVO4 interface Z-Scheme photocatalysts induced by BiVO4 surface heterojunction10.1016/j.apcatb.2018.04.026 ↗
40. Enhanced near infrared luminescence in Ag@Ag2S core-shell nanoparticles10.1016/j.apsusc.2018.08.244 ↗
41. Plasmonic photocatalysis10.1088/0034-4885/76/4/046401 ↗
42. Bi2WO6 Nanosheets Decorated with Au Nanorods for Enhanced Near-Infrared Photocatalytic Properties Based on Surface Plasmon Resonance Effects and Wide-Range Near-Infrared Light Harvesting
43. Size-dependent plasmonic effects of M and M@SiO2 (M=Au or Ag) deposited on TiO2 in photocatalytic oxidation reactions10.1016/j.apcatb.2017.05.025 ↗
44. Highly efficient photocatalysts constructed by rational assembly of dual-cocatalysts separately on different facets of BiVO410.1039/C3EE43304H ↗
45. Facile in Situ Self-Sacrifice Approach to Ternary Hierarchical Architecture Ag/AgX (X=Cl, Br, I)/AgIO3 Distinctively Promoting Visible-Light Photocatalysis with Composition-Dependent Mechanism10.1021/acssuschemeng.6b00348 ↗
46. Ag-Ag3VO4/AgIO3 composites with enhanced visible-light-drivencatalytic activity10.1016/j.jcis.2018.04.001 ↗
47. AgIO3-modified AgI/TiO2 composites for photocatalytic degradation of p-chlorophenol under visible light irradiation10.1016/j.jcis.2012.04.020 ↗
48. Synthesis and facet-dependent photoreactivity of BiOCl single-crystalline nanosheets10.1021/ja210484t ↗
49. Enhanced photoelectrochemical performance of Zn2SnO4N by interstitial N induced the build-in polarization electric field10.1016/j.jallcom.2019.02.033 ↗
50. Photocatalytic activity of Z-scheme Bi17-xGdxV3O33/Bi1.7-yGdyV8O16 heterojunction induced by Gd3+10.1016/j.apsusc.2019.04.040 ↗
51. Synthesis of Ag/BiVO4/rGO composite with enhanced photocatalytic degradation of triclosan10.1016/j.scitotenv.2019.02.027 ↗
52. Dual redox couples Ag/Ag+and I−/(IO3)− self-sacrificed transformation for realizing multiplex hierarchical architectures with universally powerful photocatalytic performance10.1016/j.apcatb.2016.07.029 ↗