The Z-scheme Ag2CO3@g-C3N4 core-shell structure for increased photoinduced charge separation and stable photocatalytic degradation
Source abstract
Abstract
Abstract The core-shell Ag2CO3@g-C3N4 photocatalyst was prepared by coating two-dimensional nanosheet g-C3N4 on the surface of Ag2CO3, which could substantial improve the photo-degradation for MO (methyl orange), and the Ag2CO3@g-C3N4 (5 wt%) composite exhibited the best degradation efficiency, up to 96.7%. Meanwhile, the composites also have great degradation properties for MB (methylene blue), RhB (Rhodamine B) and phenol, the enhanced photocatalytic performance was due to the faster photogenerated carrier migration efficiency derived from core-shell structure and chemical bond hybridization effect arising from Ag2CO3 and g-C3N4. In addition, the Ag2CO3@g-C3N4 photocatalyst has great stability for MO degradation and the activity remains at 87.3% after five cycles, due to the Z-scheme structure formed by the Ag2CO3@g-C3N4 photoacatalyst, which effectively avoids the accumulation of photoinduced electrons in the Ag2CO3 and inhibits Ag+ photoreduction, which greatly improves the stability of Ag2CO3. This Ag2CO3@g-C3N4 core-shell photocatalyst with Z-scheme system not only promotes the photodegradability of Ag2CO3, but ensures its stability performance, which providing new ideas for designing new high-efficiency photocatalytic materials.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Covalent Organic Framework Applications · Perovskite Materials and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (45)
Show source-provided references
1. Templated-synthesis of hierarchical Ag-AgBr hollow cubes with enhanced visible-light-responsive photocatalytic activity10.1016/j.apsusc.2018.03.005 ↗
2. Z-scheme Ag3PO4/POM/GO heterojunction with enhanced photocatalytic performance for degradation and water splitting10.1039/C8DT00431E ↗
3. Phase Transformation synthesis of novel Ag2O/Ag2CO3 heterostructures with high visible light efficiency in photocatalytic degradation of pollutants10.1002/adma.201304173 ↗
4. Preparation, characterization, and photocatalytic properties of silver carbonate10.1016/j.apsusc.2011.05.060 ↗
5. Photocatalytic degradation of phenol over visible light active ZnO/Ag2CO3/Ag2O nanocomposites heterojunction10.1016/j.jphotochem.2018.06.029 ↗
6. Universal degradation performance of a high-efficiency AgBr/Ag2CO3 photocatalyst under visible light and an insight into the reaction mechanism10.1039/C5NJ00385G ↗
7. A novel high-efficiency visible-light sensitive Ag2CO3 photocatalyst with universal photodegradation performances: simple synthesis, reaction mechanism and first-principles study10.1016/j.apcatb.2012.12.041 ↗
8. Synthesis of LaFeO3/Ag2CO3 nanocomposites for photocatalytic degradation of rhodamine B and p-chlorophenol under natural sunlight10.1021/acsomega.8b02829 ↗
9. Highly improved visible-light-induced photocatalytic performance over BiOI/Ag2CO3 heterojunctions10.1039/C7RA10423E ↗
10. Controllable fabrication of a novel heterojunction composite: AgBr and Ag@Ag2O co-modified Ag2CO3 with excellent photocatalytic performance towards refractory pollutant degradation10.1039/C7NJ04133K ↗
11. Enhanced photocatalytic activity over the Ag2O-g-C3N4 composite under visible light10.1039/c3cy00871a ↗
12. Photosensitization of ZnO by AgBr and Ag2CO3: nanocomposites with tandem n-n heterojunctions and highly enhanced visible-light photocatalytic activity10.1016/j.jcis.2016.04.022 ↗
13. One step synthesis of N vacancy-doped g-C3N4/Ag2CO3 heterojunction catalyst with outstanding “two-path” photocatalytic N2 fixation ability via in-situ self-sacrificial method10.1016/j.apsusc.2019.03.112 ↗
14. Photocatalytic removal of NO by Z-scheme mineral based heterojunction intermediated by carbon quantum dots10.1016/j.apsusc.2018.06.133 ↗
15. Carbon-based two dimensional layered materials for photocatalytic CO2 reduction to solar fuels10.1016/j.ensm.2015.12.003 ↗
16. A review on TiO2-based Z-scheme photocatalysts10.1016/S1872-2067(17)62962-0 ↗
17. Enhanced visible light photocatalytic H2 production over Z-scheme g-C3N4 nansheets/WO3 nanorods nanocomposites loaded with Ni(OH)x cocatalysts10.1016/S1872-2067(17)62759-1 ↗
18. All-solid-state Z-scheme photocatalytic systems10.1002/adma.201400288 ↗
19. Photocatalytic properties of Bi2WO6/BiPO4 Z-scheme photocatalysts induced by double internal electric fields10.1016/j.apsusc.2018.06.153 ↗
20. Fabricating direct Z-scheme PTCDA/g-C3N4 photocatalyst based on interfacial strong interaction for efficient photooxidation of benzylamine10.1016/j.apsusc.2018.06.181 ↗
21. Z-scheme based CdS/CdWO4 heterojunction visible light photocatalyst for dye degradation and hydrogen evolution10.1016/j.apsusc.2018.06.054 ↗
22. Highly efficient visible-light-induced photoactivity of Z-scheme Ag2CO3/Ag/WO3 photocatalysts for organic pollutant degradation
23. In-situ synthesis of Z-scheme Ag2CO3/Ag/AgNCO heterojunction photocatalyst with enhanced stability and photocatalytic activity10.1016/j.apsusc.2018.09.059 ↗
24. Kinetic approach to multistep thermal behavior of Ag2CO3-graphite mixtures: possible formation of intermediate solids with Ag2O-Ag and Ag2CO3-Ag core-shell structures10.1016/j.tca.2016.10.001 ↗
25. A visible-light-driven core-shell like Ag2S@Ag2CO3 composite photocatalyst with high performance in pollutants degradation10.1016/j.chemosphere.2016.05.021 ↗
26. Recent advances in synthetic methods and applications of Ag2S-based heterostructure photocatalysts10.1039/C9TC00008A ↗
27. g-C3N4-based heterostructured photocatalysts10.1002/aenm.201701503 ↗
28. Dramatic activity of C3N4/BiPO4 photocatalyst with core/shell structure formed by self-assembly10.1002/adfm.201102306 ↗
29. In-situ Fe-doped g-C3N4 heterogeneous catalyst via photocatalysis-Fenton reaction with enriched photocatalytic performance for removal of complex wastewater10.1016/j.apcatb.2018.12.029 ↗
30. A review on g-C3N4-based photocatalysts10.1016/j.apsusc.2016.07.030 ↗
31. Wee-Jun Ong. Interfacial engineering of graphitic carbon nitride (g-C3N4)-based metal sulfide heterojunction photocatalysts for energy conversion: a review10.1016/S1872-2067(19)63293-6 ↗
32. Semiconductor polymeric graphitic carbon nitride photocatalysts: the “holy grail” for the photocatalytic hydrogen evolution reaction under visible light10.1039/C9EE00717B ↗
33. A facile method to prepare novel Ag2O/Ag2CO3 three-dimensional hollow hierarchical structures and their water purification function10.1021/acssuschemeng.7b01040 ↗
34. A stable Ag3PO4@PANI core@shell hybrid: Enrichment photocatalytic degradation with π-π conjugation10.1016/j.apcatb.2016.08.005 ↗
35. A stable Ag3PO4@g-C3N4 hybrid core@shell composite with enhanced visible light photocatalytic degradation10.1016/j.apcatb.2015.10.035 ↗
36. Construction of iodine vacancy-rich BiOI/Ag@AgI Z-scheme heterojunction photocatalysts for visible-light-driven tetracycline degradation: transformation pathways and mechanism insight10.1016/j.cej.2018.05.093 ↗
37. Enhanced oxidation ability of g-C3N4 photocatalyst via C60 modification10.1016/j.apcatb.2014.01.046 ↗
38. One-Pot hydrothermal synthesis of SnO2/BiOBr heterojunction photocatalysts for the efficient degradation of organic pollutants under visible light10.1021/acsami.8b09617 ↗
39. Heterostructures comprised of Co/β-Mo2C-encapsulated N-doped carbon nanotubes as bifunctional electrodes for water splitting10.1002/anie.201814262 ↗
40. Ni-based photocatalytic H2-production cocatalysts10.1016/S1872-2067(19)63294-8 ↗
41. Cocatalysts for selective photoreduction of CO2 into solar fuels10.1021/acs.chemrev.8b00400 ↗
42. Engineering MPx (M=Fe, Co or Ni) interface electron transfer channels for boosting photocatalytic H2 evolution over g-C3N4/MoS2 layered heterojunctions10.1016/j.apcatb.2019.04.012 ↗
43. Review on design and evaluation of environmental photocatalysts10.1007/s11783-018-1076-1 ↗
44. Megamerger in photocatalytic field: 2D g-C3N4 nanosheets serve as support of 0D nanomaterials for improving photocatalytic performance10.1016/j.apcatb.2018.08.071 ↗
45. Zn3(OH)2V2O7·2H2O/g-C3N4: a novel composite for efficient photodegradation of methylene blue under visible-light irradiation10.1016/j.apsusc.2015.04.123 ↗