Surface hydroxylation of graphitic carbon nitride: Enhanced visible light photocatalytic activity
Source abstract
Abstract
Abstract To improve the photocatalytic activity of graphitic carbon nitride (g-C 3 N 4 ), surface hydroxylation was employed as an efficient modification method. Characterizations were conducted to examine the formation of surface hydroxyl groups, including Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and diffuse-reflection spectroscopy (DRS). The improvement of photocatalytic activity brought by the surface hydroxylation modification was examined by measuring the degradation of Rhodamine B under visible light irradiation. Both theoretical and experimental explanations were given concerning the formation of photo-generated active radicals. This study sheds light on the benefits of surface hydroxylation modification, as well as on the differences in the roles of active radical species.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells · Catalytic Processes in Materials Science
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (72)
Show source-provided references
1. Synthesis of transportation fuels from biomass: chemistry, catalysts, and engineering10.1021/cr068360d ↗
2. Gold catalysts: towards sustainable chemistry10.1002/anie.200701622 ↗
3. Polymeric graphitic carbon nitride as a heterogeneous organocatalyst: from photochemistry to multipurpose catalysis to sustainable chemistry10.1002/anie.201101182 ↗
4. Amorphous carbon nitride films as a candidate for low dielectric constant materials
5. Carbon nitride and other speculative superhard materials10.1016/0254-0584(95)01607-V ↗
6. Low-compressibility carbon nitrides10.1126/science.271.5245.53 ↗
7. A metal-free polymeric photocatalyst for hydrogen production from water under visible light10.1038/nmat2317 ↗
8. Novel group 14 nitrides10.1016/j.ccr.2004.02.001 ↗
9. CaTaO2NCaZrO3 solid solution: band-structure engineering and visible-light-driven photocatalytic hydrogen production10.1016/j.ijhydene.2012.02.143 ↗
10. Structure defects in g-C3N4 limit visible light driven hydrogen evolution and photovoltage10.1039/C4TA04100C ↗
11. Prediction of new low compressibility solids10.1126/science.245.4920.841 ↗
12. Calculation of bulk moduli of diamond and zinc-blende solids10.1103/PhysRevB.32.7988 ↗
13. A fantastic graphitic carbon nitride (g-C3N4) material: electronic structure, photocatalytic and photoelectronic properties10.1016/j.jphotochemrev.2014.04.002 ↗
14. Two-dimensional hexagonally-ordered mesoporous carbon nitrides with tunable pore diameter, surface area and nitrogen content10.1002/adfm.200700783 ↗
15. Hydrogen-storage characteristics of hydrogenated amorphous carbon nitrides10.1016/j.tsf.2007.11.030 ↗
16. The phase diagram and hardness of carbon nitrides
17. Role of lone-pair interactions and local disorder in determining the interdependency of optical constants of a- C N: H thin films10.1103/PhysRevB.66.195415 ↗
18. Brand new P-doped g-C3N4: enhanced photocatalytic activity for H2 evolution and Rhodamine B degradation under visible light10.1039/C4TA05292G ↗
19. Carbon self-doping induced high electronic conductivity and photoreactivity of g-C3N410.1039/c2cc32181e ↗
20. A strategy of enhancing the photoactivity of g-C3N4 via doping of nonmetal elements: a first-Principles study10.1021/jp308334x ↗
21. Synthesis of transition metal-modified carbon nitride polymers for selective hydrocarbon oxidation10.1002/cssc.201000149 ↗
22. Template synthesis of carbon self-doped g-C3N4 with enhanced visible to near-infrared absorption and photocatalytic performance10.1039/C5RA03433G ↗
23. A facile approach to synthesize novel oxygen-doped g-C3N4 with superior visible-light photoreactivity10.1039/c2cc35862j ↗
24. Fabrication, characterization and photocatalytic activity of g-C3N4 coupled with FeVO4 nanorods10.1039/C5RA01484K ↗
25. Facile fabrication of highly efficient g-C3N4/BiFeO3 nanocomposites with enhanced visible light photocatalytic activities10.1016/j.jcis.2015.01.090 ↗
26. Facile synthesis of organic–inorganic layered nanojunctions of g-C3N4/(BiO)2CO3 as efficient visible light photocatalyst10.1039/C4DT00513A ↗
27. A flake-tube structured BiOBr–TiO2 nanotube array heterojunction with enhanced visible light photocatalytic activity10.1039/C4NJ00024B ↗
28. Preparation of β-Bi2O3/g-C3N4 nanosheet p–n junction for enhanced photocatalytic ability under visible light illumination10.1007/s11051-014-2808-1 ↗
29. A simple large-scale method for preparation of g-C3N4/SnO2 nanocomposite as visible-light-driven photocatalyst for degradation of an organic pollutant10.1166/mex.2015.1242 ↗
30. Synthesis of bulk and nanoporous carbon nitride polymers from ammonium thiocyanate for photocatalytic hydrogen evolution10.1039/c1jm11961c ↗
31. Mesoporous g-C3N4 nanorods as multifunctional supports of ultrafine metal nanoparticles: hydrogen generation from water and reduction of nitrophenol with tandem catalysis in one step10.1039/c2sc20289a ↗
32. Condensed graphitic carbon nitride nanorods by nanoconfinement: promotion of crystallinity on photocatalytic conversion10.1021/cm201688v ↗
33. Nitrogen-rich carbon nitride hollow vessels: synthesis, characterization, and their properties10.1021/jp103729c ↗
34. Properties of disorder-engineered black titanium dioxide nanoparticles through hydrogenation
35. Hydroxylation of the rutile TiO2(110) surface enhancing its reducing power for photocatalysis10.1021/jp510427v ↗
36. Surface hydroxylation of TiO2 yields notable visible-light photocatalytic activity to decompose rhodamine B in aqueous solution10.1016/j.jpcs.2013.03.013 ↗
37. Catalytic role of surface oxygens in TiO2 photooxidation reactions: aqueous benzene photooxidation with Ti18O2 under anaerobic conditions10.1021/jz400580b ↗
38. Relationship between surface hydroxyl groups and liquid-phase photocatalytic activity of titanium dioxide10.1016/j.jcis.2014.12.052 ↗
39. A simple chemical method of opening and filling carbon nanotubes10.1038/372159a0 ↗
40. Opening and purification of carbon nanotubes in high yields10.1002/adma.19950070304 ↗
41. Carbon-nanotube metal-matrix composites prepared by electroless plating10.1016/S0266-3538(99)00127-X ↗
42. Preparation and characterization of platinum-Based electrocatalysts on multiwalled carbon nanotubes for proton exchange membrane fuel cells10.1021/la0116903 ↗
43. Effect of chemical oxidation on the structure of single-walled carbon nanotubes10.1021/jp027500u ↗
44. Graphitic carbon nitride materials: variation of structure and morphology and their use as metal-free catalysts10.1039/b800274f ↗
45. Graphene-like carbon nitride nanosheets for improved photocatalytic activities10.1002/adfm.201200922 ↗
46. Enhanced photoresponsive ultrathin graphitic-phase C3N4 nanosheets for bioimaging10.1021/ja308249k ↗
47. The amphoteric properties of gC 3N 4 nanosheets and fabrication of their relevant heterostructure photocatalysts by an electrostatic re-assembly route10.1039/C5CC01035G ↗
48. Sol processing of conjugated carbon nitride powders for thin-film fabrication10.1002/ange.201501001 ↗
49. Chemical exfoliation of graphitic carbon nitride for efficient heterogeneous photocatalysis10.1039/c3ta13188b ↗
50. Ionothermal synthesis of crystalline, condensed, graphitic carbon nitride10.1002/chem.200800190 ↗
51. Preparation and characterization of graphene oxide nanosheets10.1016/j.proeng.2012.02.009 ↗
52. Chemical analysis of graphene oxide films after heat and chemical treatments by X-ray photoelectron and Micro-Raman spectroscopy10.1016/j.carbon.2008.09.045 ↗
53. Structural characterization of N-containing activated carbon fibers prepared from a low softening point petroleum pitch and a melamine resin10.1016/S0008-6223(01)00155-5 ↗
54. Black hydroxylated titanium dioxide prepared via ultrasonication with enhanced photocatalytic activity
55. Hydrogen-treated TiO2 nanowire arrays for photoelectrochemical water splitting10.1021/nl201766h ↗
56. Hierarchical 3D NiO-CdS heteroarchitecture for efficient visible light photocatalytic hydrogen generation10.1039/c2jm31148h ↗
57. Graphene/gC 3N 4 bilayer: considerable band gap opening and effective band structure engineering10.1039/c3cp54592j ↗
58. Silicon nanowire band gap modification10.1021/nl061888d ↗
59. Kisch · 2015
60. Critical review of rate constants for reactions of hydrated electrons, hydrogen atoms and hydroxyl radicals (OH/O- in aqueous solution10.1063/1.555805 ↗
61. Formation and identification of intermediates in the visible-light-assisted photodegradation of sulforhodamine-B dye in aqueous TiO2 dispersion10.1021/es0205434 ↗
62. Photocatalysis through excitation of adsorbates: 1. Highly efficient N-deethylation of rhodamine B adsorbed to cadmium sulfide10.1021/j100534a012 ↗
63. Photocatalytic degradation of organic water contaminants: mechanisms involving hydroxyl radical attack10.1016/0021-9517(90)90269-P ↗
64. Photoassisted degradation of dye pollutants. V. self-photosensitized oxidative transformation of rhodamine B under visible light irradiation in aqueous TiO2 dispersions10.1021/jp980922c ↗
65. Design of a direct Z-scheme photocatalyst: preparation and characterization of Bi2O3/g-C3N4 with high visible light activity10.1016/j.jhazmat.2014.08.055 ↗
66. Microwave synthesis of znxCd1-xS nanorods and their photocatalytic activity under visible light10.1021/jp9066247 ↗
67. Photocatalytic reduction of nitrate ions on TiO2 by oxalic acid10.1016/S1010-6030(97)00293-1 ↗
68. Fast kinetic spectroscopy, decoloration and production of H2O2 induced by visible light in oxygenated solutions of the azo dye Orange II10.1039/a902425e ↗
69. Laser flash photokinetic studies of rose benagl sensitized photodynamic interactions of nucleotides and DNA10.1111/j.1751-1097.1987.tb08407.x ↗
70. Role of primary active species and TiO2 surface characteristic in UV-illuminated photodegradation of Acid Orange 710.1016/j.jphotochem.2004.11.006 ↗
71. A study on the degradation of carbamazepine and ibuprofen by TiO 2 & ZnO photocatalysis upon UV/Visible-Light irradiation
72. On the electronic structures and electron affinities of the m-benzoquinone (BQ) diradical and the o-, p-BQ molecules: a synergetic photoelectron spectroscopic and theoretical study10.1021/jp1120542 ↗