Metakaolin-based nano-structuring of polymeric carbon nitride and synchronous composite construction for superior photocatalytic H2 evolution
Source abstract
Abstract
Abstract Nanostructure-tailoring and composite-construction are two effective strategies to optimize polymeric carbon nitride (PCN) for advanced photocatalysis. Herein, a vapor deposition process was adopted to grow PCN nanosheets on the surface of the cheap mineral metakaolin, achieving both the nano-structuring of PCN and the synchronous construction of metakaolin/nano-PCN composite. It showed a substantially improved photocatalytic H2 evolution activity 3.8 times higher than the traditional bulk PCN under visible light. Performance gains benefit from the natural electronegativity of metakaolin and the nanosizing of PCN, which synergistically facilitate the separation and utilization of photoinduced charge carriers. This work may inspire not only the utilization of various clay minerals but also the nano-tailoring and composite-construction of PCN.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Covalent Organic Framework Applications · Copper-based nanomaterials and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (57)
Show source-provided references
1. Surface chemistry and rheology of slurries of kaolinite and montmorillonite from different sources10.14356/kona.2016007 ↗
2. Trace-level phosphorus and sodium co-doping of g-C3N4 for enhanced photocatalytic H2 production10.1016/j.jpowsour.2017.03.089 ↗
3. Influence of defects on the photocatalytic activity of ZnO10.1021/jp5033349 ↗
4. Fabrication of BiOI/graphene Hydrogel/FTO photoelectrode with 3D porous architecture for the enhanced photoelectrocatalytic performance10.1016/j.apcatb.2018.04.004 ↗
5. Functional nanohybrid materials derived from kaolinite10.1016/j.clay.2016.01.010 ↗
6. The influence of thermal treatment on properties of kaolin10.2298/HEMIND150720066E ↗
7. Improved photocatalytic activity of g-C3N4 derived from cyanamide-urea solution10.1039/C4RA16362A ↗
8. Enhanced photochemical oxidation ability of carbon nitride by π–π stacking interactions with graphene10.1016/S1872-2067(16)62561-5 ↗
9. Template-free precursor-surface-etching route to porous, thin g-C3N4 nanosheets for enhancing photocatalytic reduction and oxidation activity10.1039/C7TA04639A ↗
10. Highly efficient visible-light-driven mesoporous graphitic carbon nitride/ZnO nanocomposite photocatalysts10.1016/j.apcatb.2016.07.027 ↗
11. Facile synthesis of g-C3N4/montmorillonite composite with enhanced visible light photodegradation of rhodamine B and tetracycline10.1016/j.jtice.2016.06.014 ↗
12. Nanotube-confinement induced size-controllable g-C3N4 quantum dots modified single-crystalline TiO2 nanotube arrays for stable synergetic photoelectrocatalysis10.1016/j.nanoen.2015.10.011 ↗
13. Synthesis of dark orange montmorillonite/g-C3N4 composites and their applications in the environment10.1016/j.jpcs.2017.03.023 ↗
14. Efficient photocatalytic fixation of N2 by KOH-treated g-C3N410.1039/C7TA09762J ↗
15. Tri-s-triazine-based crystalline graphitic carbon nitrides for highly efficient hydrogen evolution photocatalysis10.1021/acscatal.6b00922 ↗
16. Efficient photocatalytic hydrogen evolution on N-deficient g-C3N4 achieved by a molten salt post-treatment approach10.1016/j.apcatb.2018.07.021 ↗
17. Nanocomposite of exfoliated bentonite/g-C3N4/Ag3PO4 for enhanced visible-light photocatalytic decomposition of Rhodamine B10.1016/j.chemosphere.2016.07.089 ↗
18. Water-assisted ions in situ intercalation for porous polymeric graphitic carbon nitride nanosheets with superior photocatalytic hydrogen evolution performance10.1016/j.apcatb.2016.03.002 ↗
19. Highly efficient visible-light photocatalytic activity of graphitic carbon nitride prepared from melamine-thiourea molecular composite10.1016/j.jece.2016.09.029 ↗
20. Novel TiO2/C3N4 photocatalysts for photocatalytic reduction of CO2 and for photocatalytic decomposition of N2O10.1021/acs.jpca.6b07236 ↗
21. Effect of metakaolin on natural volcanic pozzolan-based geopolymer cement10.1016/j.clay.2016.07.020 ↗
22. Template-free preparation of mesoporous silica and alumina from natural kaolinite and their application in methylene blue adsorption10.1016/j.clay.2014.10.006 ↗
23. Nanoporous g-C3N4 nanosheets: facile synthesis and excellent visible-light photocatalytic H2 evolution performance10.1016/j.jallcom.2018.03.019 ↗
24. A green one-pot approach for mesoporous g-C3N4 nanosheets with in situ sodium doping for enhanced photocatalytic hydrogen evolution10.1016/j.ijhydene.2018.11.025 ↗
25. Sposito · 1989 · 277
26. Novel visible light active graphitic C3N4-TiO2 composite photocatalyst: synergistic synthesis, growth and photocatalytic treatment of hazardous pollutants10.1016/j.apcatb.2013.05.077 ↗
27. Bioinspired hollow semiconductor nanospheres as photosynthetic nanoparticles10.1038/ncomms2152 ↗
28. One-step in situ calcination synthesis of g-C3N4/N-TiO2 hybrids with enhanced photoactivity10.1039/C5RA26700E ↗
29. Enhanced visible-light photocatalytic activity of kaolinite/g-C3N4 composite synthesized via mechanochemical treatment10.1016/j.clay.2016.04.003 ↗
30. Fabrication of novel cyanuric acid modified g-C3N4/kaolinite composite with enhanced visible light-driven photocatalytic activity10.3390/min8100437 ↗
31. Suraj · Appl. Clay Sci. · 1998 · 13 · 29310.1016/S0169-1317(98)00043-X ↗
32. One-step synthesis of nanostructured g-C3N4/TiO2 composite for highly enhanced visible-light photocatalytic H2 evolution10.1016/j.apcatb.2018.02.056 ↗
33. Synergistic effects of kaolin clay on intumescent fire retardant coating composition for fire protection of structural steel substrate10.1016/j.polymdegradstab.2014.08.017 ↗
34. A metal-free polymeric photocatalyst for hydrogen production from water under visible light10.1038/nmat2317 ↗
35. Environment-friendly preparation of porous graphite-phase polymeric carbon nitride using calcium carbonate as templates, and enhanced photoelectrochemical activity10.1039/C4TA06778A ↗
36. One-pot synthesis of metakaolin/g-C3N4 composite for improved visible-light photocatalytic H2 evolution10.1016/j.clay.2018.09.014 ↗
37. Synthesis of potassium-modified graphitic carbon nitride with high photocatalytic activity for hydrogen evolution10.1002/cssc.201402180 ↗
38. Facile alkali-assisted synthesis of g-C3N4 materials and their high-performance catalytic application in solvent-free cycloaddition of CO2 to epoxides10.1039/C6RA10509B ↗
39. Enhancing visible light photocatalytic activity of nitrogen-deficient g-C3N4 via thermal polymerization of acetic acid-treated melamine10.1016/j.jcis.2017.01.111 ↗
40. In situ structural modification of graphitic carbon nitride by alkali halides and influence on photocatalytic activity10.1039/C7RA05555B ↗
41. Solid salt confinement effect: an effective strategy to fabricate high crystalline polymer carbon nitride for enhanced photocatalytic hydrogen evolution10.1016/j.apcatb.2019.01.069 ↗
42. Impact of doped metals on urea-derived g-C3N4 for photocatalytic degradation of antibiotics: Structure, photoactivity and degradation mechanisms10.1016/j.apcatb.2018.11.069 ↗
43. Well-designed 3D ZnIn2S4 nanosheets/TiO2 nanobelts as direct Z-scheme photocatalysts for CO2 photoreduction into renewable hydrocarbon fuel with high efficiency10.1016/j.apcatb.2017.08.016 ↗
44. 3D-3D porous Bi2WO6/graphene hydrogel composite with excellent synergistic effect of adsorption-enrichment and photocatalytic degradation10.1016/j.apcatb.2016.12.035 ↗
45. Properties and applications of halloysite nanotubes: recent research advances and future prospects10.1016/j.clay.2015.05.001 ↗
46. Graphene quantum dots decorated graphitic carbon nitride nanorods for photocatalytic removal of antibiotics10.1016/j.jcis.2019.04.027 ↗
47. Two dimensional conjugated polymers with enhanced optical absorption and charge separation for photocatalytic hydrogen evolution10.1039/c3ee44189j ↗
48. Dispersion of kaolin powders in silica sols10.1016/j.clay.2010.04.001 ↗
49. Synthesis of carbon nitride semiconductors in sulfur flux for water photoredox catalysis10.1021/cs300167b ↗
50. An optimized and general synthetic strategy for fabrication of polymeric carbon nitride nanoarchitectures10.1002/adfm.201203287 ↗
51. Optimizing optical absorption, exciton dissociation, and charge transfer of a polymeric carbon nitride with ultrahigh solar hydrogen production activity10.1002/anie.201706870 ↗
52. Tailoring the grain boundary chemistry of polymeric carbon nitride for enhanced solar hydrogen production and CO2 reduction10.1002/anie.201811938 ↗
53. Fabrication of atomic single layer graphitic-C3N4 and its high performance of photocatalytic disinfection under visible light irradiation10.1016/j.apcatb.2014.01.023 ↗
54. Facile synthesis of graphitic C3N4 nanoporous-tube with high enhancement of visible-light photocatalytic activity10.1088/1361-6528/aa929a ↗
55. Preparation and photocatalytic performance of g-C3N4/kaolinite composite10.15541/jim20160004 ↗
56. Ultrathin CdS shell-sensitized hollow S-doped CeO2 spheres for efficient visible-light photocatalysis10.1039/C8CY02206B ↗
57. Carbon-doped ZnO hybridized homogeneously with graphitic carbon nitride nanocomposites for photocatalysis10.1021/jp502677h ↗