Novel 2D SnNb2O6/Ag3VO4 S-scheme heterojunction with enhanced visible-light photocatalytic activity
Source abstract
Abstract
Abstract At present, photocatalytic technology for degradation of organic matter is a promising water treatment technology. Two-dimensional (2D) nanomaterials are getting more and more attention based on unique physical and chemical properties. In this work, 2D SnNb2O6 nanosheets were prepared by hydrothermal method, and then Ag3VO4 was loaded on the surface of SnNb2O6 nanosheets by chemical deposition to form a compact and stable step-scheme (S-scheme) heterostructure. S-scheme system not only efficiently separated the charge carriers spatially, but also retained the electrons with higher reduction ability and holes with higher oxidation ability. Therefore, the novel SnNb2O6/Ag3VO4 S-scheme heterojunction shows the best photocatalytic activity, which is much better than pristine SnNb2O6 and Ag3VO4. The constant Kapp of SnNb2O6/Ag3VO4 heterojunction is calculated to be 0.2256 min−1, which is 16.2 and 1.6 folds higher than that of the pristine SnNb2O6 (0.0139 min−1) and Ag3VO4 (0.1395 min−1), respectively. Moreover, the SnNb2O6/Ag3VO4 heterojunction maintains good photostability in 3 cycles.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Ga2O3 and related materials · 2D Materials and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (54)
Show source-provided references
1. Degradation behaviour of non-sintered graphene/barium titanate/magnesium phosphate cement bio-piezoelectric composites10.1016/j.ceramint.2020.02.028 ↗
2. Ambient aqueous-phase synthesis of covalent organic frameworks for degradation of organic pollutants10.1039/C9SC03725J ↗
3. Photocatalytic degradation of organic micropollutants: inhibition mechanisms by different fractions of natural organic matter10.1016/j.watres.2020.115643 ↗
4. Highly enhanced degradation of organic pollutants in hematite/sulfite/photo system10.1016/j.cej.2019.124007 ↗
5. Sulfur-doped g-C3N4/TiO2 S-scheme heterojunction photocatalyst for Congo Red photodegradation10.1016/S1872-2067(20)63634-8 ↗
6. The photocatalytic phenol degradation mechanism of Ag-modified ZnO nanorods10.1039/C9TC05010H ↗
7. Deciphering co-catalytic mechanisms of potassium doped g-C3N4 in Fenton process10.1016/j.jhazmat.2020.122472 ↗
8. g-C3N4-Based heterostructured photocatalysts10.1002/aenm.201701503 ↗
9. Distinctive binary g-C3N4/MoS2 heterojunctions with highly efficient ultrasonic catalytic degradation for levofloxacin and methylene blue10.1016/j.ceramint.2020.01.287 ↗
10. A novel step-scheme BiVO4/Ag3VO4 photocatalyst for enhanced photocatalytic degradation activity under visible light irradiation10.1016/S1872-2067(20)63560-4 ↗
11. A Z-scheme Bi2MoO6/CdSe-diethylenetriamine heterojunction for enhancing photocatalytic hydrogen production activity under visible light10.1039/C8DT04578J ↗
12. Z-scheme AgSCN/Ag3PO4/C3N4 heterojunction with excellent photocatalytic degradation of ibuprofen10.1016/j.ceramint.2019.08.239 ↗
13. In situ grown monolayer N-doped graphene on CdS hollow spheres with seamless contact for photocatalytic CO2 reduction10.1002/adma.201902868 ↗
14. Enhanced photoactivity and oxidizing ability simultaneously via internal electric field and valence band position by crystal structure of bismuth oxyiodide10.1016/j.apcatb.2019.118262 ↗
15. In situ photochemical synthesis noble-metal-free NiS on CdS-diethylenetriamine nanosheets for boosting photocatalytic H2 production activity10.1016/j.apsusc.2019.03.171 ↗
16. Noble-metal-free NiS decorated organic-inorganic hybrid ZnxCd1-xSe-diethylenetriamine solid solution for hydrogen evolution10.1016/j.apsusc.2019.145213 ↗
17. Improved photocatalytic performance of Gd and Nd co-doped ZnO nanorods for the degradation of methylene blue10.1016/j.ceramint.2020.01.234 ↗
18. Carrier generation in p-type wide-gap oxide: SnNb2O6 foordite10.1021/acs.chemmater.8b03408 ↗
19. Recent advances in ultrathin two-dimensional nanomaterials10.1021/acs.chemrev.6b00558 ↗
20. CuInSe2 ultrathin nanoplatelets: novel self-sacrificial template-directed synthesis and application for flexible photodetectors10.1039/c2cc34727j ↗
21. Ultrathin ZnIn2S4 nanosheets anchored on Ti3C2TX MXene for photocatalytic H2 evolution10.1002/ange.202002136 ↗
22. Construction of TiO2 nanosheets with exposed {0 0 1} facets/Zn0.2Cd0.8S-DETA heterostructure with enhanced visible light hydrogen production10.1016/j.apsusc.2020.146141 ↗
23. Preparation of heterostructure g-C3N4/ZnO nanorods for high photocatalytic activity on different pollutants (MB, RhB, Cr(VI) and eosin)10.1016/j.ceramint.2020.01.265 ↗
24. Novel BiSbO4/BiOBr nanoarchitecture with enhanced visible-light driven photocatalytic performance: oxygen-induced pathway of activation and mechanism unveiling10.1016/j.apsusc.2019.143850 ↗
25. Cocatalysts for selective photoreduction of CO2 into solar fuels10.1021/acs.chemrev.8b00400 ↗
26. Two-dimensional sulfur- and chlorine-codoped g-C3N4/CdSe-amine heterostructures nanocomposite with effective interfacial charge transfer and mechanism insight10.1016/j.apcatb.2020.119452 ↗
27. Enhanced photocatalytic H2-production activity of WO3/TiO2 step-scheme heterojunction by graphene modification10.1016/S1872-2067(19)63382-6 ↗
28. S-scheme heterojunction photocatalyst
29. Sb2WO6/BiOBr 2D nanocomposite S-scheme photocatalyst for NO removal10.1016/j.jmst.2020.03.039 ↗
30. Designing a 0D/2D S-scheme heterojunction over polymeric carbon nitride for visible-light photocatalytic inactivation of bacteria10.1002/anie.201916012 ↗
31. Fabrication of Ag3VO4 decorated phosphorus and sulphur co-doped graphitic carbon nitride as a high-dispersed photocatalyst for phenol mineralization and E-coli disinfection10.1016/j.seppur.2018.12.007 ↗
32. Molecularly imprinted Ag/Ag3VO4/g-C3N4 Z-scheme photocatalysts for enhanced preferential removal of tetracycline10.1016/j.jcis.2019.05.060 ↗
33. Step-scheme porous g-C3N4/Zn0.2Cd0.8S-DETA composites for efficient and stable photocatalytic H2 production, Chin
34. Ag-Ag3VO4/AgIO3 composites with enhanced visible-light-driven catalytic activity10.1016/j.jcis.2018.04.001 ↗
35. Visible light-driven photocatalytic degradation of organic pollutants by a novel Ag3VO4/Ag2CO3 p-n heterojunction photocatalyst: mechanistic insight and degradation pathways10.1016/j.jallcom.2020.155211 ↗
36. Facile synthesis of novel octahedral Cu2O/Ag3PO4 composite with enhanced visible light photocatalysis10.1016/j.matlet.2017.06.111 ↗
37. Facile preparation of Yb3+/Tm3+ co-doped Ti3C2/Ag/Ag3VO4 composite with an efficient charge separation for boosting visible-light photocatalytic activity10.1016/j.apsusc.2020.146909 ↗
38. Construction of carbon nanotube mediated Fe doped graphitic carbon nitride and Ag3VO4 based Z-scheme heterojunction for H2O2 assisted 2,4 dimethyl phenol photodegradation10.1016/j.seppur.2020.116957 ↗
39. A novel Z-scheme Ag3VO4/BiVO4 heterojunction photocatalyst: study on the excellent photocatalytic performance and photocatalytic mechanism10.1016/j.apcatb.2019.01.001 ↗
40. Highly efficient photocatalytic activity of Ag3VO4/WO2.72 nanocomposites for the degradation of organic dyes from the ultraviolet to near-infrared regions10.1016/j.apsusc.2020.145618 ↗
41. SrTiO3 nanoparticle/SnNb2O6 nanosheet 0D/2D heterojunctions with enhanced interfacial charge separation and photocatalytic hydrogen evolution activity10.1021/acssuschemeng.7b01548 ↗
42. Simultaneous realization of direct photoinduced deposition and improved H2-evolution performance of Sn-Nanoparticle-Modified TiO2 photocatalyst10.1021/acssuschemeng.9b01516 ↗
43. Direct 2D/2D Z-scheme SnNb2O6/ZnO hybrid photocatalyst with enhanced interfacial charge separation and high efficiency for pollutants degradation10.1016/j.apsusc.2020.146938 ↗
44. Synthesis of novel metal nanoparticles/SnNb2O6 nanosheets plasmonic nanocomposite photocatalysts with enhanced visible-light photocatalytic activity and mechanism insight10.1016/j.jallcom.2016.05.260 ↗
45. Enhanced photocatalytic activity of a hydrogen bond-assisted 2D/2D Z-scheme SnNb2O6/Bi2WO6 system: highly efficient separation of photoinduced carriers10.1016/j.jcis.2019.05.104 ↗
46. Construction of SnNb2O6 nanosheet/g-C3N4 nanosheet two-dimensional heterostructures with improved photocatalytic activity: synergistic effect and mechanism insight10.1016/j.apcatb.2015.10.022 ↗
47. Ultrathin 2D/2D WO3/g-C3N4 step-scheme H-2-production photocatalyst10.1016/j.apcatb.2018.11.011 ↗
48. S-scheme photocatalyst Bi2O3/TiO2 nanofiber with improved photocatalytic performance10.1016/j.jmst.2020.03.027 ↗
49. Noble-metal-free Ni2P modified step-scheme SnNb2O6/CdS-diethylenetriamine for photocatalytic hydrogen production under broadband light irradiation10.1016/j.apcatb.2020.118844 ↗
50. Facile synthesis of novel SWCNT/HgS nanohybrid: an effective photocatalyst for degradation of methylene blue10.1016/j.matlet.2019.04.090 ↗
51. Hydrothermally grown SDS-capped ZnO photocatalyst for degradation of RR141 azo dye10.1016/j.matlet.2019.02.080 ↗
52. Direct current field induced asymmetrical DC-resistivity degradation in SrTiO3-based grain boundary layer ceramic10.1016/j.ceramint.2019.03.131 ↗
53. WP modified S-scheme Zn0.5Cd0.5S/WO3 for efficient photocatalytic hydrogen production10.1039/C9NJ04584H ↗
54. S-scheme Sb2WO6/g-C3N4 photocatalysts with enhanced visible-light-induced photocatalytic NO oxidation performance, Chin