ZnS quantum dots and Bi metals embedded with two dimensional β-Bi2O4 nanosheets for efficient UV-visible light driven photocatalysis
Source abstract
Abstract
Abstract In this work, the ZnS QDs , Bi/β-Bi 2O4 and ZnS/Bi/β-Bi2O4 nanocomposite were synthesized through a facile precipitation, solvothermal and wet impregnation route respectively. The combination of bare ZnS QDs with Bi/β-Bi2O4 nanocomposite exhibits superior photocatalytic activity against toxic pollutants (MB & Rh B) and it’s attributed to the increased light-absorption capacity, efficient charge transfer process, extraordinary exciton separation, less photogenerated electron-hole recombination. The ZnS/Bi/β-Bi2O4 nanocomposite was found to be 3 times more efficient as a photocatalyst than pristine ZnS QDs. Besides, this composite demonstrates good stability for photocatalytic activities, no substantial decomposition of activity is being observed after 5 cycle’s run devoid of a main defeat in their performance. Scavenger test were also implemented in order to appreciate the possible mechanism of photodegradation. This superior photocatalytic activity and stability may offer a new sight in the improvement of a photocatalyst with large efficiency for practical application of wastewater treatment.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Quantum Dots Synthesis And Properties · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (52)
Show source-provided references
1. Synthesis of novel magnetically separable Fe3O4/Bi12O17Cl2 photocatalyst with boosted visible-light photocatalytic activity10.1016/j.materresbull.2020.110888 ↗
2. Structure and photocatalytic activity of Ni-doped ZnO nanorods10.1016/j.materresbull.2011.04.008 ↗
3. Synthesis of magnetically separable and recyclable g-C3N4-Fe3O4 hybrid nanocomposites with enhanced photocatalytic performance under visible-light irradiation10.1021/jp409651g ↗
4. Synthesis and photocatalytic activity of mesoporous cerium doped TiO2 as visible light sensitive photocatalyst10.1016/j.materresbull.2011.11.049 ↗
5. Supercritical CO2 synthesized TiO2 nanowires covalently linked with core–shell CdS–ZnS quantum dots: enhanced photocatalysis and stability10.1039/C5RA08914J ↗
6. Facile and green one pot synthesis of zinc sulphide quantum dots employing zinc-based ionic liquids and their photocatalytic activity10.1039/C7NJ01373F ↗
7. Study of capping agent effect on the structural, optical and photocatalytic properties of zinc sulfide quantum dots10.1016/j.mssp.2016.02.021 ↗
8. Characteristics of CuInS2/ZnS quantum dots and its application on LED10.1016/j.jcrysgro.2011.01.059 ↗
9. Preparation of surface imprinting polymer capped Mn-Doped ZnS quantum dots and their application for chemiluminescence detection of 4-nitrophenol in tap water10.1021/ac101510b ↗
10. Effect of silica on the ZnS nanoparticles for stable and sustainable antibacterial application10.1111/ijac.13145 ↗
11. Recombination in quantum dot sensitized solar cells10.1021/ar900134d ↗
12. Study of photocatalytic activity of ZnS quantum dots as efficient nanoparticles for removal of methyl violet: effect of ferric ion doping10.1016/j.saa.2013.11.064 ↗
13. Effect of transition metal ion doping on the photocatalytic activity of ZnS quantum dots: synthesis, characterization, and application for dye decolorization10.1016/j.molcata.2015.01.029 ↗
14. High-performance pure and Fe3+-ion doped ZnS quantum dots as green nanophotocatalysts for the removal of malachite green under UV-light irradiation10.1016/j.jhazmat.2013.02.007 ↗
15. Preparation of Cu-doped ZnS QDs/TiO2 nanocomposites with high photocatalytic activity10.1016/j.apcatb.2013.07.004 ↗
16. M.S. Seyed Dorraji, ZnS quantum dot intercalated layered double hydroxide semiconductors for solar water splitting and organic pollutant degradation10.1039/C9TA01412H ↗
17. “Green” colloidal ZnS quantum dots/chitosan nano-photocatalysts for advanced oxidation processes: Study of the photodegradation of organic dye pollutants10.1016/j.apcatb.2014.04.026 ↗
18. InP/ZnS quantum dots as efficient visible-light photocatalysts for redox and carbon-carbon coupling reactions10.1021/acs.chemmater.9b00086 ↗
19. Construction of a direct Z-scheme ZnS quantum dot (QD)-Fe2O3 QD heterojunction/reduced graphene oxide nanocomposite with enhanced photocatalytic activity10.1016/j.apsusc.2019.144922 ↗
20. Magnetically recoverable multifunctional ZnS/Ag/CoFe2O4 nanocomposite for sunlight driven photocatalytic dye degradation and bactericidal application10.1016/j.jpcs.2019.109231 ↗
21. Synthesis of δ-Bi2O3/Bi2MoO6 composites with enhanced photocatalytic activity by hydrothermal method10.1016/j.materresbull.2018.03.021 ↗
22. Study of the electronic structure and photocatalytic activity of the BiOCl photocatalyst10.1016/j.apcatb.2006.08.002 ↗
23. Visible-light-induced degradation of rhodamine B by nanosized Bi2WO610.1021/jp052995j ↗
24. MoO3-nanowire membrane and Bi2Mo3O12/MoO3 nano-heterostructural photocatalyst for wastewater treatment10.1016/j.cej.2014.01.070 ↗
25. Photoassisted degradation of organic dyes by β-Bi2Mo 2O9
26. Photocatalytic properties of amine functionalized Bi2Sn2O7/rGO nanocomposites10.1016/j.jpcs.2018.02.042 ↗
27. Fabrication of Z-scheme MoO3/Bi2O4 heterojunction photocatalyst with enhanced photocatalytic performance under visible light irradiation10.1016/S1872-2067(19)63391-7 ↗
28. Construction of TiO2 nanobelts-Bi2O4 heterojunction with enhanced visible light photocatalytic activity10.1016/j.colsurfa.2018.03.063 ↗
29. Generation and photocatalytic activities of Bi@Bi2O3 microspheres10.1007/s12274-011-0103-3 ↗
30. Spinel oxide ZnCr2O4 incorporated with ZnS quantum dots for application on visible light driven photocatalyst Azo dye degradation10.1016/j.colsurfa.2020.124505 ↗
31. Starch-assisted synthesis and optical properties of ZnS nanoparticles10.1016/j.materresbull.2016.01.046 ↗
32. Mass synthesis of dendritic Bi nanostructures by a facile electrodeposition route and influencing factors10.1039/C0CE00148A ↗
33. Growth of Li doped bismuth oxide nanorods and its electrochemical performance for the determination of L-cysteine10.1590/1980-5373-mr-2016-0711 ↗
34. EPR and FT-IR spectroscopic studies of Bi2O3-B2O3-CuO glasses10.1016/j.physb.2008.06.016 ↗
35. Enhanced photocatalytic inactivation of Escherichia coli by a novel Z-scheme g-C3N4/m-Bi2O4 hybrid photocatalyst under visible light: the role of reactive oxygen species10.1016/j.apcatb.2017.05.035 ↗
36. Controllable synthesis of core-shell Bi@Amorphous Bi2O3 nanospheres with tunable optical and photocatalytic activity for NO removal10.1021/acs.iecr.7b02497 ↗
37. Synthesis and luminescence properties of core/shell ZnS:Mn/ZnO nanoparticles10.1007/s11671-008-9205-6 ↗
38. One-step synthesis of a novel Z-scheme m-Bi2O4/Bi2O4−x heterojunction for enhanced degradation of organic dyes and phenol under visible light10.1007/s10853-020-04769-2 ↗
39. Colloidal synthesis of Y-doped SnO2 nanocrystals for efficient and slight hysteresis planar perovskite solar cells10.1016/j.solener.2019.04.084 ↗
40. Band gap engineered TiO2 nanoparticles for visible light induced photoelectrochemical and photocatalytic studies10.1039/C3TA14052K ↗
41. Synthesis and photoluminescence properties of ZnMnS nanobelts10.1063/1.1687985 ↗
42. Activation of amorphous bismuth oxide via plasmonic Bi metal for efficient visible-light photocatalysis10.1016/j.jcat.2017.04.025 ↗
43. Double Z-scheme ZnO/ZnS/g-C3N4 ternary structure for efficient photocatalytic H2 production10.1016/j.apsusc.2017.07.186 ↗
44. Construction of CdS quantum dots modified g-C3N4/ZnO heterostructured photoanode for efficient photoelectrochemical water splitting10.1016/j.jphotochem.2018.11.008 ↗
45. Synthesis of novel p-n heterojunction m-Bi2O4 /BiOCl nanocomposite with excellent photocatalytic activity through ion-etching method
46. A Ag nanoparticle functionalized g-C3N4/Bi2O3 2D nanohybrid: a promising visible light harnessing photocatalyst towards degradation of rhodamine B and tetracycline10.1039/C9NA00172G ↗
47. Fabrication of composite photocatalyst g-C3N4-ZnO and enhancement of photocatalytic activity under visible light10.1039/c2dt12474b ↗
48. Enhanced visible-light-driven photocatalytic H2 production and Cr(vi) reduction of a ZnIn2S4/MoS2 heterojunction synthesized by the biomolecule-assisted microwave heating method10.1039/D0CY00234H ↗
49. Visible light photocatalytic degradation of dyes by bismuth: oxide-reduced graphene oxide composites prepared via: microwave-assisted method10.1016/j.jcis.2013.07.045 ↗
50. Fabrication of ZnS-Bi-TiO2 composites and investigation of their sunlight photocatalytic performance
51. Template-free fabrication of α- and β-Bi2O3 hollow spheres and their visible light photocatalytic activity for water purification10.1016/j.jallcom.2014.03.111 ↗
52. Fabrication of a β-Bi2O3/BiOI heterojunction and its efficient photocatalysis for organic dye removal