Synthesis of high-efficient g-C3N4/polydopamine/CdS nanophotocatalyst based on bioinspired adhesion and chelation
Source abstract
Abstract
Abstract By utilizing the bioinspired adhesion and metal chelation of polydopamine (PDA), a kind of ternary nanocomposites that consist of the graphitic carbon nitride nanosheet (CNNS), PDA layer and cadmium sulfide (CdS) nanocrystals were synthesized. In the resultant CNNS/PDA/CdS nanocomposites, CdS nanocrystals about 5−10 nm in diameter are scattered on the CNNS surface in the presence of the PDA layer. Due to the energy band matching, CNNS constructs a type II heterostructure with CdS nanoparticles via the mediation of the electroconductive PDA layer, thus enhancing the photocatalytic activity. Compared with pristine CdS and CNNS, the CNNS/PDA/CdS nanocomposite conspicuously shows superior photocatalytic performance under visible light above 420 nm, which can degrade 97 % Rhodamine B (RhB) molecules within 80 min. The introduction of a PDA layer between CNNS and CdS not only promotes the photon energy absorption but also facilitates the separation of photoinduced electron-hole pairs.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · 2D Materials and Applications · Quantum Dots Synthesis And Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (65)
Show source-provided references
1. Visible-light photocatalysis in nitrogen-doped titanium oxides10.1126/science.1061051 ↗
2. Synthesis of visible light responsive iodine-doped mesoporous TiO2 by using biological renewable lignin as template for degradation of toxic organic pollutants10.1016/j.apcatb.2019.04.034 ↗
3. Metal-free efficient photocatalyst for stable visible water splitting via a two-electron pathway10.1126/science.aaa3145 ↗
4. Photocatalytic hydrogen production with conjugated polymers as photosensitizers10.1021/acsami.7b18917 ↗
5. In situ synthesis of C-doped TiO2@g-C3N4 core-shell hollow nanospheres with enhanced visible-light photocatalytic activity for H2 evolution10.1016/j.cej.2017.04.056 ↗
6. Self-assembled reduced graphene oxide-TiO2 nanocomposites: synthesis, DFTB plus calculations, and enhanced photocatalytic reduction of CO2 to methanol10.1016/j.carbon.2019.03.019 ↗
7. Ag loaded on layered perovskite H2SrTa2O7 to enhance the selectivity of photocatalytic CO2 reduction with H2O10.1016/j.jallcom.2019.01.325 ↗
8. A metal-free polymeric photocatalyst for hydrogen production from water under visible light10.1038/nmat2317 ↗
9. Photodegradation performance of g-C3N4 fabricated by directly heating melamine10.1021/la900923z ↗
10. Polymer semiconductors for artificial photosynthesis: hydrogen evolution by mesoporous graphitic carbon nitride with visible light10.1021/ja809307s ↗
11. A simple and efficient strategy for the synthesis of a chemically tailored g-C3N4 material10.1039/C4TA02781G ↗
12. Graphene oxide as a structure-directing agent for the two-dimensional interface engineering of sandwich-like graphene-g-C3N4 hybrid nanostructures with enhanced visible-light photoreduction of CO2 to methane10.1039/C4CC08996K ↗
13. Polycondensation of thiourea into carbon nitride semiconductors as visible light photocatalysts10.1039/c2jm00097k ↗
14. In situ construction of g-C3N4/g-C3N4 metal-free heterojunction for enhanced visible-light photocatalysis10.1021/am403653a ↗
15. Thylakoid-inspired multishell g-C3N4 nanocapsules with enhanced visible-light harvesting and electron transfer properties for high-efficiency photocatalysis10.1021/acsnano.6b08251 ↗
16. Biomimetic design of hollow flower-like g-C3N4@PDA organic framework nanospheres for realizing an efficient photoreactivity
17. Mn-doped g-C3N4 nanoribbon for efficient visible-light photocatalytic water splitting coupling with methylene blue degradation10.1021/acssuschemeng.8b01093 ↗
18. Biomimetic fabrication of g-C3N4/TiO2 nanosheets with enhanced photocatalytic activity toward organic pollutant degradation10.1016/j.cej.2014.08.072 ↗
19. Construction of MnO2/Monolayer g-C3N4 with Mn vacancies for Z-scheme overall water splitting10.1016/j.apcatb.2018.08.073 ↗
20. Biomimetic synthesis of C3N4/TiO2/Ag nanosheet composites with high visible-light photocatalytic performance10.1039/C5RA06980G ↗
21. Seed-induced growing various TiO2 nanostructures on g-C3N4 nanosheets with much enhanced photocatalytic activity under visible light10.1016/j.jhazmat.2015.03.006 ↗
22. In-situ growth of CdS quantum dots on g-C3N4 nanosheets for highly efficient photocatalytic hydrogen generation under visible light irradiation10.1016/j.ijhydene.2012.10.116 ↗
23. In situ photochemical fabrication of CdS/g-C3N4 nanocomposites with high performance for hydrogen evolution under visible light10.1016/j.apcatb.2019.117848 ↗
24. Porous double-shell CdS@C3N4 octahedron derived by in situ supramolecular self-assembly for enhanced photocatalytic activity10.1016/j.apcatb.2019.04.006 ↗
25. Highly efficient heterojunction photocatalyst based on nanoporous g-C3N4 sheets modified by Ag3PO4nanoparticles: Synthesis and enhanced photocatalytic activity10.1016/j.jcis.2013.11.042 ↗
26. A graphitic-C3N4-hybridized Ag3PO4 tetrahedron with reactive {111} facets to enhance the visible-light photocatalytic activity10.1039/C5RA18096A ↗
27. Enhanced photocatalytic performance of direct Z-scheme BiOCl-g-C3N4 photocatalysts10.1039/c4ra01629g ↗
28. Facets coupling of BiOBr-g-C3N4 composite photocatalyst for enhanced visible-light-driven photocatalytic activity
29. Self-assembly synthesis of BiVO4/Polydopamine/g-C3N4 with enhanced visible light photocatalytic performance10.1016/j.materresbull.2017.10.016 ↗
30. Facile structure design based on C3N4 for mediator-free Z-scheme water splitting under visible light10.1039/C5CY00379B ↗
31. Tubular g-C3N4 isotype heterojunction: enhanced visible-light photocatalytic activity through cooperative manipulation of oriented electron and hole transfer10.1002/smll.201601660 ↗
32. A facile band alignment of polymeric carbon nitride semiconductors to construct isotype heterojunctions10.1002/anie.201205333 ↗
33. Hierarchical nanocomposites of polyaniline nanorods arrays on graphitic carbon nitride sheets with synergistic effect for photocatalysis10.1016/j.cattod.2013.12.008 ↗
34. Robust wide visible-light-responsive photoactivity for H2 production over a polymer/polymer heterojunction photocatalyst: the significance of sacrificial reagent10.1021/acssuschemeng.5b00211 ↗
35. Graphitic carbon nitride (g-C3N4)-based photocatalysts for artificial photosynthesis and environmental remediation: are we a step closer to achieving sustainability?10.1021/acs.chemrev.6b00075 ↗
36. Mussel-inspired surface chemistry for multifunctional coatings10.1126/science.1147241 ↗
37. o-Benzosemiquinone and its metal chelates. Electron spin resonance investigation of radicals from the photolysis of catechol in the presence of complexing metal ions10.1021/ja00370a018 ↗
38. Non-novalent self-assembly and covalent polymerization co-contribute to polydopamine formation10.1002/adfm.201201156 ↗
39. Perspectives on poly(dopamine)10.1039/c3sc51501j ↗
40. Polydopamine and eumelanin molecular structures investigated with ab initio calculations10.1039/C6SC04692D ↗
41. Eumelanin broadband absorption develops from aggregation-modulated chromophore interactions under structural and redox control10.1038/srep41532 ↗
42. The physical and chemical properties of eumelanin10.1111/j.1600-0749.2006.00345.x ↗
43. Nature-mimic method to fabricate polydopamine/graphitic carbon nitride for enhancing photocatalytic degradation performance10.1021/acssuschemeng.7b01313 ↗
44. Synthesis of g-C3N4 nanosheet/TiO2 heterojunctions inspired by bioadhesion and biomineralization mechanism10.1021/acs.iecr.9b00184 ↗
45. A g-C3N4-CdS composite catalyst with high visible-light-driven catalytic activity and photostability for methylene blue degradation10.1016/j.apsusc.2014.01.022 ↗
46. Synthetic melanin hybrid patchy nanoparticle photocatalysts10.1021/acs.jpcc.8b10469 ↗
47. Graphene-like carbon nitride nanosheets for improved photocatalytic activities10.1002/adfm.201200922 ↗
48. Core/shell structured CdS/polydopamine/TiO2 ternary hybrids as highly active visible-light photocatalysis10.1016/j.jcis.2019.02.080 ↗
49. Controlled architecture of hybrid polymer nanocapsules with tunable morphologies by manipulating surface-initiated ARGET ATRP from hydrothermally modified polydopamine10.1021/acs.chemmater.7b04319 ↗
50. In situ self-transformation synthesis of g-C3N4-modified CdS heterostructure with enhanced photocatalytic activity10.1016/j.apsusc.2015.06.074 ↗
51. Novel visible-light-driven direct Z-scheme CdS/CuInS2 nanoplates for excellent photocatalytic degradation performance and highly-efficient Cr (VI) reduction10.1016/j.cej.2018.10.176 ↗
52. Heterojunctions in g-C3N4/TiO2(B) nanofibres with exposed (001) plane and enhanced visible-light photoactivity10.1039/C3TA14047D ↗
53. Fabrication of nanoplate-like g-C3N4/Bi12TiO20 heterojunction with enhanced visible-light photocatalytic’ activity10.1016/j.materresbull.2017.04.024 ↗
54. Characterization of carbonized polydopamine nanoparticles suggests ordered supramolecular structure of polydopamine10.1021/la500225v ↗
55. Correlation between CdS photoanodic behaviour and electrode chemical modifications: an X-ray photoelectron spectroscopic study10.1002/sia.740070403 ↗
56. Ozone treatment of graphitic carbon nitride with enhanced photocatalytic activity under visible light irradiation10.1016/j.jcis.2017.06.082 ↗
57. Fabrication of a novel p-n heterojunction photocatalyst n-BiVO4@p-MoS2 with core-shell structure and its excellent visible-light photocatalytic reduction and oxidation activities10.1016/j.apcatb.2015.12.023 ↗
58. Two-step self-assembly CdS/g-C3N4 heterostructure composites with higher photocatalytic performance under visible light irradiation10.1002/pssa.201800978 ↗
59. Ultrasound exfoliation of g-C3N4 with assistance of cadmium ions and synthesis of CdS/g-C3N4 ultrathin nanosheets with efficient photocatalytic activity10.1016/j.jtice.2015.11.013 ↗
60. Superior nanoporous graphitic carbon nitride photocatalyst coupled with CdS quantum dots for photodegradation of RhB10.1016/j.cattod.2015.08.006 ↗
61. Visible light active 2D C3N4-CdS hetero-junction photocatalyst for effective removal of azo dye by photodegradation10.1088/2053-1591/aab0ee ↗
62. Ultra-low-temperature growth of CdS quantum dots on g-C3N4 nanosheets and their photocatalytic performance10.1039/C7DT04355D ↗
63. In situ self-assembly of 3D hierarchical 2D/2D CdS/g-C3N4 hereojunction with excellent photocatalytic performance10.1016/j.mssp.2019.104734 ↗
64. Distinctive ternary CdS/Ni2P/g-C3N4 composite for overall water splitting: Ni2P accelerating separation of photocarriers10.1016/j.apcatb.2019.02.055 ↗
65. Probing supramolecular assembly and charge carrier dynamics toward enhanced photocatalytic hydrogen evolution in 2D graphitic carbon nitride nanosheets10.1016/j.apcatb.2019.117867 ↗