Ag nanoparticles decorated WO3/g-C3N4 2D/2D heterostructure with enhanced photocatalytic activity for organic pollutants degradation
Source abstract
Abstract
Abstract A novel Ag nanoparticles (NPs) decorated WO3 nanoplates/g-C3N4 (CN) nanosheets 2D/2D heterostructure was successfully synthesized by a solvent evaporation and in situ calcination method. The as-prepared WO3/Ag/CN ternary composite exhibited remarkably enhanced photocatalytic activity towards rhodamine B (RhB) and tetracycline (TC) degradation compared with WO3, CN, Ag/WO3, Ag/CN and WO3/CN under visible light irradiation. The enhanced photocatalytic activity could be attributed to the efficient separation of photogenerated charge carriers, the strong redox ability and enhancement of visible-light absorption derived from the construction of Z-scheme 2D/2D heterostructure. Ag NPs not only possess the surface plasmon resonance (SPR) effect, but also act as an electron mediator in Z-scheme heterostructure. The UV–vis absorption spectra analysis indicated that the loading of Ag NPs can enhance the visible-light adsorption. And the decreased photoluminescence and the increased photocurrent demonstrated the high separation rate of photoinduced charge carriers owing to the successful heterojunction construction. Furthermore, the possible degradation pathways of RhB and TC were proposed according to HPLC-MS analysis. The results of radical trapping experiments indicated that O2− and OH were the primary active species during the photocatalytic degradation process.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Gas Sensing Nanomaterials and Sensors · Advanced Nanomaterials in Catalysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (56)
Show source-provided references
1. Recent advances in non-metal modification of graphitic carbon nitride for photocatalysis: a historic review10.1039/C6CY01195K ↗
2. Engineering heterogeneous semiconductors for solar water splitting10.1039/C4TA04461D ↗
3. Graphitic carbon nitride (g-C3N4) nanocomposites: a new and exciting generation of visible light driven photocatalysts for environmental pollution remediation10.1016/j.apcatb.2016.05.052 ↗
4. Enhanced photocatalytic performance of direct Z-scheme g-C3N4-TiO2 photocatalysts for the decomposition of formaldehyde in air10.1039/c3cp53131g ↗
5. Two-dimensional covalent carbon nitride nanosheets: synthesis, functionalization, and applications10.1039/C5EE01895A ↗
6. Controllable synthesis of nanotube-type graphitic C3N4 and their visible-light photocatalytic and fluorescent properties10.1039/c3ta14576j ↗
7. Carbon self-doping induced high electronic conductivity and photoreactivity of g-C3N410.1039/c2cc32181e ↗
8. Enhanced visible-light photocatalytic activity of active Al2O3/g-C3N4 heterojunctions synthesized via surface hydroxyl modification10.1016/j.jhazmat.2014.09.035 ↗
9. Coupling with a narrow-band-gap semiconductor for enhancement of visible-light photocatalytic activity: preparation of Bi2S3/g-C3N4 and application for degradation of RhB10.1039/C4RA15715J ↗
10. Recyclable nanoscale zero valent iron doped g-C3N4/MoS2 for efficient photocatalysis of RhB and Cr(VI) driven by visible light10.1021/acssuschemeng.6b01024 ↗
11. Facile fabrication of highly efficient g-C3N4/Ag2O heterostructured photocatalysts with enhanced visible-light photocatalytic activity10.1021/am4038307 ↗
12. g-C3N4-based heterostructured photocatalysts10.1002/aenm.201701503 ↗
13. Synthesis of MoS2/g-C3N4 nanocomposites with enhanced visible-light photocatalytic activity for the removal of nitric oxide (NO)10.1364/OE.24.010205 ↗
14. A review on g-C3N4-based photocatalysts10.1016/j.apsusc.2016.07.030 ↗
15. Facile fabrication of acidified g-C3N4/g-C3N4 hybrids with enhanced photocatalysis performance under visible light irradiation10.1016/j.apcatb.2016.03.060 ↗
16. Enhanced photodegradation activity of methyl orange over Z-scheme type MoO3-g-C3N4 composite under visible light irradiation10.1039/C4RA00693C ↗
17. G-C3N4/BiVO4 composites with enhanced and stable visible light photocatalytic activity10.1016/j.jallcom.2013.12.050 ↗
18. 2D/2D Z-scheme Bi2WO6/porous-g-C3N4 with synergy of adsorption and visible-light-driven photodegradation10.1016/j.apsusc.2018.03.080 ↗
19. 2D–2D stacking of graphene-like g-C3N4/ultrathin Bi4O5Br2 with matched energy band structure towards antibiotic removal10.1016/j.apsusc.2017.03.287 ↗
20. Highly efficient visible light active 2D–2D nanocomposites of N-ZnO-g-C3N4 for photocatalytic degradation of diverse industrial pollutants
21. Facile synthesis of WO3 nanorods/g-C3N4 composites with enhanced photocatalytic activity10.1016/j.ceramint.2014.12.140 ↗
22. Mesoporous carbon nitride-tungsten oxide composites for enhanced photocatalytic hydrogen evolution10.1002/cssc.201403278 ↗
23. Direct Z-scheme g-C3N4/WO3 photocatalyst with atomically defined junction for H2 production10.1016/j.apcatb.2017.08.018 ↗
24. Facile preparation of Z-scheme WO3/g-C3N4 composite photocatalyst with enhanced photocatalytic performance under visible light10.1016/j.apsusc.2016.07.055 ↗
25. In-situ synthesis of WO3 nanoplates anchored on g-C3N4 Z-scheme photocatalysts for significantly enhanced photocatalytic activity10.1016/j.apsusc.2018.04.116 ↗
26. Fabrication and photocatalytic activity enhanced mechanism of direct Z-scheme g-C3N4/Ag2WO4 photocatalyst10.1016/j.apsusc.2016.07.104 ↗
27. Fabrication of g-C3N4/Au/C-TiO2 hollow structures as visible-light-driven Z-scheme photocatalysts with enhanced photocatalytic H2 evolution10.1002/cctc.201700542 ↗
28. Fabrication of mediator-free g-C3N4/Bi2WO6 Z-scheme with enhanced photocatalytic reduction dechlorination performance of 2,4-DCP10.1016/j.apsusc.2018.06.072 ↗
29. Highly enhanced photocatalytic degradation of methylene blue over the indirect all-solid-state Z-scheme g-C3N4-RGO-TiO2 nanoheterojunctions10.1016/j.apsusc.2017.01.285 ↗
30. Enhanced photocatalytic activity of graphitic carbon nitride/carbon nanotube/Bi2WO6 ternary Z-scheme heterojunction with carbon nanotube as efficient electron mediator10.1016/j.jcis.2017.10.074 ↗
31. Fabrication of sulfur-doped g-C3N4/Au/CdS Z-scheme photocatalyst to improve the photocatalytic performance under visible light10.1016/j.apcatb.2015.01.012 ↗
32. Fabrication of Z-scheme g-C3N4/RGO/Bi2WO6 photocatalyst with enhanced visible-light photocatalytic activity10.1016/j.cej.2016.01.031 ↗
33. Two dimensional Z-scheme AgCl/Ag/CaTiO3 nano-heterojunctions for photocatalytic hydrogen production enhancement10.1016/j.apsusc.2017.12.065 ↗
34. Hierarchical Z-scheme photocatalyst of g-C3N4@Ag/BiVO4 (040) with enhanced visible-light-induced photocatalytic oxidation performance10.1016/j.apcatb.2017.09.005 ↗
35. Significantly enhanced visible-light photocatalytic activity of g-C3N4 via ZnO modification and the mechanism study10.1016/j.molcata.2012.11.007 ↗
36. Fabrication of composite photocatalyst g-C3N4-ZnO and enhancement of photocatalytic activity under visible light10.1039/c2dt12474b ↗
37. Effect of calcination temperatures on microstructures and photocatalytic activity of tungsten trioxide hollow microspheres10.1016/j.jhazmat.2008.03.047 ↗
38. Construction of WO3-g-C3N4 composites as efficient photocatalysts for pharmaceutical degradation under visible light10.1039/C7CY00529F ↗
39. Facile synthesis of composite g-C3N4/WO3: a nontoxic photocatalyst with excellent catalytic activity under visible light10.1039/c3ra41982g ↗
40. Proton-functionalized two-dimensional graphitic carbon nitride nanosheet: an excellent metal-/label-free biosensing platform10.1002/smll.201303827 ↗
41. A three-dimensional graphitic carbon nitride belt network for enhanced visible light photocatalytic hydrogen evolution10.1039/C6TA07397B ↗
42. Fabrication of WO3@g-C3N4 with core@shell nanostructure for enhanced photocatalytic degradation activity under visible light10.1016/j.apsusc.2017.06.127 ↗
43. Engineering efficient charge transfer based on ultrathin graphite-like carbon nitride/WO3 semiconductor nanoheterostructures for fabrication of high-performances non-enzymatic photoelectrochemical glucose sensor10.1016/j.electacta.2016.08.113 ↗
44. Synthesis of ternary g-C3N4/Ag/γ-FeOOH photocatalyst: An integrated heterogeneous fenton-like system for effectively degradation of azo dye methyl orange under visible light10.1016/j.apsusc.2017.06.124 ↗
45. Facile fabrication of 3D flower-like heterostructured g-C3N4/SnS2 composite with efficient photocatalytic activity under visible light10.1039/C4RA03843F ↗
46. Ag nanoparticles loaded on porous graphitic carbon nitride with enhanced photocatalytic activity for degradation of phenol10.1016/j.solidstatesciences.2017.01.010 ↗
47. Dramatic activity of a Bi2WO6@g-C3N4 photocatalyst with a core@shell structure10.1039/C5RA19929H ↗
48. An AgI@g-C3N4 hybrid core@shell structure: stable and enhanced photocatalytic degradation10.1016/j.apsusc.2015.07.212 ↗
49. Heterogeneous activation of persulfate for Rhodamine B degradation with 3D flower sphere-like BiOI/Fe3O4 microspheres under visible light irradiation10.1016/j.seppur.2017.09.045 ↗
50. A novel strategy for the removal of rhodamine B (RhB) dye from wastewater by coal-based carbon membranes coupled with the electric field10.1016/j.seppur.2017.02.014 ↗
51. Evaluating tetracycline degradation pathway and intermediate toxicity during the electrochemical oxidation over a Ti/Ti4O7 anode10.1016/j.watres.2018.03.030 ↗
52. Well-dispersed nebula-like ZnO/CeO2@HNTs heterostructure for efficient photocatalytic degradation of tetracycline10.1016/j.cej.2016.07.014 ↗
53. Ultra-thin coating of g-C3N4 on an aligned ZnO nanorod film for rapid charge separation and improved photodegradation performance10.1039/C6RA16300A ↗
54. Quantum dots and plasmonic Ag decorated WO3 nanorod photoanodes with enhanced photoelectrochemical performances10.1016/j.ijhydene.2016.09.055 ↗
55. Critical influence of g-C3N4 self-assembly coating on the photocatalytic activity and stability of Ag/AgCl microspheres under visible light10.1016/j.apcatb.2015.01.002 ↗
56. Construction of novel Z-scheme Ag/FeTiO3/Ag/BiFeO3 photocatalyst with enhanced visible-light-driven photocatalytic performance for degradation of norfloxacin10.1016/j.cej.2018.06.171 ↗