MoS2-coated microspheres of self-sensitized carbon nitride for efficient photocatalytic hydrogen generation under visible light irradiation
Source abstract
Abstract
Abstract We have successfully coated the self-sensitized carbon nitride (SSCN) microspheres with a layer of MoS2 through a facile one-pot hydrothermal method by using (NH4)2MoS4 as the precursor. The resulted MoS2-coated SSCN photocatalyst appears as a core-shell structure and exhibits enhanced visible-light activities for photocatalytic H2 generation as compared to the un-coated SSCN and the standard g-C3N4 reference with MoS2 coating. The photocatalytic test results suggest that the oligomeric s-triazine dyes on the SSCN surface can provide additional light-harvesting capability and photogenerated charge carriers, and the coated MoS2 layer can serve as active sites for proton reduction towards H2 evolution. This synergistic effect of surface triazine dyes and MoS2 coating greatly promotes the activity of carbon nitride microspheres for vishible-light-driven H2 generation. This work provides a new way of future development of low-cost noble-metal-free photocatalysts for efficient solar-driven hydrogen production.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Gas Sensing Nanomaterials and Sensors · Covalent Organic Framework Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (46)
Show source-provided references
1. Semiconductor-based photocatalytic hydrogen generation10.1021/cr1001645 ↗
2. Constructing Ru/TiO2 heteronanostructures toward enhanced photocatalytic water splitting via RuO2/TiO2 heterojunction and Ru/TiO2 Schottky junction10.1002/admi.201500631 ↗
3. Titanium dioxide-based nanomaterials for photocatalytic fuel generations10.1021/cr500008u ↗
4. Recent advances in semiconductors for photocatalytic and photoelectrochemical water splitting10.1039/C3CS60378D ↗
5. Heterogeneous photocatalyst materials for water splitting10.1039/B800489G ↗
6. Hetero-nanostructured suspended photocatalysts for solar-to-fuel conversion10.1039/C4EE02914C ↗
7. Surface modification and enhanced photocatalytic CO2 reduction performance of TiO2: a review10.1016/j.apsusc.2016.09.093 ↗
8. Modification of g-C3N4 nanosheets by carbon quantum dots for highly efficient photocatalytic generation of hydrogen10.1016/j.apsusc.2016.03.025 ↗
9. 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 ↗
10. Microwave-Assisted heating synthesis: a general and rapid strategy for large-Scale production of high crystalline g-C3N4 with enhanced photocatalytic H2 production10.1039/C4GC01517G ↗
11. Large impact of heating time on physical properties and photocatalytic H2 production of g-C3N4 nanosheets synthesized through urea polymerization in Ar atmosphere10.1016/j.ijhydene.2013.07.104 ↗
12. Polymeric graphitic carbon nitride as a heterogeneous organocatalyst: from photochemistry to multipurpose catalysis to sustainable chemistry10.1002/anie.201101182 ↗
13. In situ bond modulation of graphitic carbon nitride to construct p-n homojunctions for enhanced photocatalytic hydrogen production10.1002/adfm.201602779 ↗
14. Temperature-controlled morphology evolution of graphitic carbon nitride nanostructures and their photocatalytic activities under visible light10.1039/C5RA07284K ↗
15. Carbon-based H2-production photocatalytic materials10.1016/j.jphotochemrev.2016.04.002 ↗
16. A review on g-C3N4 for photocatalytic water splitting and CO2 reduction10.1016/j.apsusc.2015.08.173 ↗
17. Enhanced visible light photocatalytic H2 production activity of g-C3N4 via carbon fiber10.1016/j.apsusc.2015.08.089 ↗
18. In situ self-transformation synthesis of g-C3N4-modified CdS heterostructure with enhanced photocatalytic activity10.1016/j.apsusc.2015.06.074 ↗
19. A review on g-C3N4-based photocatalysts10.1016/j.apsusc.2016.07.030 ↗
20. Efficient visible-light photocatalytic hydrogen evolution and enhanced photostability of core@shell Cu2O@g-C3N4 octahedra10.1016/j.apsusc.2015.06.119 ↗
21. Self-sensitized carbon nitride microspheres for long-lasting visible-light-driven hydrogen generation10.1002/smll.201600181 ↗
22. Homogenous boron-doping in self-sensitized carbon nitride for enhanced visible-light photocatalytic activity10.1002/asia.201601201 ↗
23. MoS2/TiO2 edge-on heterostructure for efficient photocatalytic hydrogen evolution10.1002/aenm.201600464 ↗
24. In situ photo-assisted deposition of MoS2 electrocatalyst onto zinc cadmium sulphide nanoparticle surfaces to construct an efficient photocatalyst for hydrogen generation10.1039/c2nr34037b ↗
25. MoS2-graphene/ZnIn2S4 hierarchical microarchitectures with an electron transport bridge between light-harvesting semiconductor and cocatalyst: a highly efficient photocatalyst for solar hydrogen generation10.1016/j.apcatb.2016.01.061 ↗
26. Synergetic effect of MoS2 and graphene as cocatalysts for enhanced photocatalytic H2 production activity of TiO2 nanoparticles10.1021/ja302846n ↗
27. Synthesis and characterization of composite visible light active photocatalysts MoS2–g-C3N4 with enhanced hydrogen evolution activity10.1016/j.ijhydene.2013.04.006 ↗
28. Importance of hydrophilic pretreatment in the hydrothermal growth of amorphous molybdenum sulfide for hydrogen evolution catalysis10.1021/acs.langmuir.5b00205 ↗
29. MoS2/graphene cocatalyst for efficient photocatalytic H2 evolution under visible light irradiation10.1021/nn5019945 ↗
30. Amorphous molybdenum sulfide films as catalysts for electrochemical hydrogen production in water10.1039/C1SC00117E ↗
31. Synthesis of MoS2 nanosheet supported Z-scheme TiO2/g-C3N4 photocatalysts for the enhanced photocatalytic degradation of organic water pollutants10.1039/C5RA24676H ↗
32. Polymeric photocatalysts based on graphitic carbon nitride10.1002/adma.201500033 ↗
33. An amorphous carbon nitride photocatalyst with greatly extended visible-light-responsive range for photocatalytic hydrogen generation10.1002/adma.201501939 ↗
34. A graphitic-C3N4 seaweed architecture for enhanced hydrogen evolution10.1002/anie.201504985 ↗
35. Template-free synthesis of porous graphitic carbon nitride microspheres for enhanced photocatalytic hydrogen generation with high stability10.1016/j.apcatb.2014.10.045 ↗
36. The effect of the pore-wall structure of carbon nitride on photocatalytic CO2 reduction under visible light10.1039/C4TA03128H ↗
37. High-rate and high-energy-density lithium-ion battery anode containing 2D MoS2 nanowall and cellulose binder10.1021/am3022015 ↗
38. Constructing 2D porous graphitic C3N4 nanosheets/nitrogen-doped graphene/layered MoS2 ternary nanojunction with enhanced photoelectrochemical activity10.1002/adma.201303116 ↗
39. A two-dimensional hybrid with molybdenum disulfide nanocrystals strongly coupled on nitrogen-enriched graphene via mild temperature pyrolysis for high performance lithium storage10.1039/C4NR05519E ↗
40. MoS2/reduced graphene oxide hybrid with CdS nanoparticles as a visible light-driven photocatalyst for the reduction of 4-nitrophenol10.1016/j.jhazmat.2016.02.021 ↗
41. Liquid-exfoliation of layered MoS2 for enhancingphotocatalytic activity of TiO2/g-C3N4 photocatalyst and DFT study10.1016/j.apsusc.2016.07.154 ↗
42. Fabrication and enhanced photoelectrochemical performance of MoS2/S-doped g-C3N4 heterojunction film10.1021/acsami.5b11326 ↗
43. XPS investigation of preferential sputtering of S from MoS2 and determination of MoSx stoichiometry from Mo and S peak positions10.1016/S0169-4332(99)00253-6 ↗
44. Silicon decorated with amorphous cobalt molybdenum sulfide catalyst as an efficient photocathode for solar hydrogen generation10.1021/nn506819m ↗
45. Synthesis of MoS2/g-C3N4 nanosheets as 2D heterojunction photocatalysts with enhanced visible light activity10.1016/j.apsusc.2015.12.236 ↗
46. Enhanced visible light photocatalytic H2-production of g-C3N4/WS2 composite heterostructures10.1016/j.apsusc.2015.08.250 ↗