Enhanced carriers separation efficiency in g-C3N4 modified with sulfonic groups for efficient photocatalytic Cr(VI) reduction
Source abstract
Abstract
Abstract Rapid carrier transport and high carrier separation efficiency are key factors in improving photocatalytic performance. Herein, a novel sulfonic groups modified g-C3N4 photocatalyst was constructed by solution impregnation and evaporation method. The strong electronegativity of the sulfonic acid group provides a guide for the migration of electrons to the surface, thereby promoting the transport and separation of photogenerated carriers. In addition to that, the sulfonic acid group can also achieve spatial separation of carriers on the surface and serve as an active site. Based on the above merits, the sulfonic-acid-modified g-C3N4 exhibited a significantly enhanced visible light reduction Cr(VI) activity which is 2.9 times higher than that of pure g-C3N4.The resent work provides a new strategy for the surface modification of photocatalysts, which contributes to construct high performance photocatalysts.
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Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Perovskite Materials and Applications · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (51)
Show source-provided references
1. Metal-free g-C3N4 photocatalysis of organic micropollutants in urban wastewater under visible light10.1016/j.apcatb.2019.02.001 ↗
2. Magnetic nanomaterials: chemical design, synthesis, and potential applications10.1021/acs.accounts.7b00407 ↗
3. Improved fluorescence test of chromium (VI) in aqueous solution with g-C3N4 nanosheet and mechanisms10.1016/j.materresbull.2018.11.038 ↗
4. In-situ, microwave-assisted heating synthesis of a high-performance g-C3N4/carbon nanotubes composite photocatalyst with good contact interfaces10.1016/j.materresbull.2018.06.004 ↗
5. Synthesis of flower-like Bi2Sn2O7/Bi2WO6 hierarchical composites with enhanced visible light photocatalytic performance10.1016/j.jallcom.2019.01.241 ↗
6. Self-powered electrostatic filter with enhanced photocatalytic degradation of formaldehyde based on built-in triboelectric nanogenerators10.1021/acsnano.7b06451 ↗
7. Unveiling the role of defects on oxygen activation and photodegradation of organic pollutants10.1021/acs.est.8b03558 ↗
8. Fluid eddy induced piezo-promoted photodegradation of organic dye pollutants in wastewater on ZnO nanorod arrays/3D Ni foam10.1016/j.mattod.2017.08.027 ↗
9. High-efficiency “working-in-tandem” nitrogen photofixation achieved by assembling plasmonic gold nanocrystals on ultrathin titania nanosheets10.1021/jacs.8b03537 ↗
10. Direct functionalization of methane into ethanol over copper modified polymeric carbon nitride via photocatalysis10.1038/s41467-019-08454-0 ↗
11. Phosphorus and sulfur codoped g-C3N4 as an efficient metal-free photocatalyst10.1016/j.carbon.2017.11.019 ↗
12. Photocatalytic dye and Cr(VI) degradation using a metal-free polymeric g-C3N4 synthesized from solvent-treated urea10.3390/polym11010182 ↗
13. Recyclable nanoscale zero valent Iron doped g-C3N4/MoS2 for efficient photocatalysis of RhB and Cr(VI) driven by visible light10.1021/acssuschemeng.6b01024 ↗
14. Electrochemical photolysis of water at a semiconductor electrode10.1038/238037a0 ↗
15. Engineering design of hierarchical g-C3N4@ Bi/BiOBr ternary heterojunction with Z-scheme system for efficient visible-light photocatalytic performance10.1016/j.jallcom.2019.05.303 ↗
16. Bismuth-rich bismuth oxyhalides for environmental and energy photocatalysis10.1016/j.ccr.2017.08.010 ↗
17. High-efficiency Fe-Mediated Bi2MoO6 nitrogen-fixing photocatalyst: reduced surface work function and ameliorated surface reaction10.1016/j.apcatb.2019.117781 ↗
18. Unprecedented effect of CO2 calcination atmosphere on photocatalytic H2 production activity from water using g-C3N4 synthesized from triazole polymerization10.1016/j.apcatb.2018.09.023 ↗
19. Microstructure and photocatalytic performance of BiVO4 prepared by hydrothermal method10.1016/j.jallcom.2018.12.071 ↗
20. Plasmonic resonance enhanced photoelectrochemical aptasensors based on g-C3N4/Bi2MoO610.1039/C8CC04211J ↗
21. Synthesis of efficient nanosized rutile TiO2 and its main factors determining its photodegradation activity: roles of residual chloride and adsorbed oxygen10.1021/jp305142j ↗
22. Effects of inorganic acid modification on photocatalytic performance of TiO2 and its activity-enhanced mechanism related to adsorbed O210.1002/cplu.201300285 ↗
23. Adsorption and reactions of O2 on anatase TiO210.1021/ar400312t ↗
24. A new method to determine the generation of hydroxyl radicals in illuminated TiO2 suspensions10.1021/jp971315c ↗
25. Facile fabrication and tuning of TiO2 nanoarchitectured morphology using magnetron sputtering and its applications to photocatalysis10.1016/j.ceramint.2014.07.025 ↗
26. Ag-AgI/Bi3O4Cl for efficient visible light photocatalytic degradation of methyl orange: the surface plasmon resonance effect of Ag and mechanism insight10.1016/j.apcatb.2019.01.060 ↗
27. Graphene quantum dots decorated graphitic carbon nitride nanorods for photocatalytic removal of antibiotics10.1016/j.jcis.2019.04.027 ↗
28. Surface functionalization of grown-on-tip ZnO nanopyramids: from fabrication to light-triggered applications10.1021/acsami.8b22744 ↗
29. Intermittent microwave heating-promoted rapid fabrication of sheet-like Ag assemblies and small-sized Ag particles and their use as co-catalyst of ZnO for enhanced photocatalysis10.1039/c3ta13635c ↗
30. Highly active oxide photocathode for photoelectrochemical water reduction10.1038/nmat3017 ↗
31. ZnO-dotted porous ZnS cluster microspheres for high efficient, Pt-free photocatalytic hydrogen evolution10.1038/srep08858 ↗
32. Enhanced photocatalytic activity of Cl-residual rutile TiO2 nanorods after targeted co-modification with phosphoric and boric acids10.1039/C5CP02084K ↗
33. Exfoliated graphitic carbon nitride nanosheets as efficient catalysts for hydrogen evolution under visible light10.1002/adma.201204453 ↗
34. Co-monomer control of carbon nitride semiconductors to optimize hydrogen evolution with visible light10.1002/anie.201106656 ↗
35. Protonated graphitic carbon nitride with surface attached molecule as hole relay for efficient photocatalytic O2 evolution10.1021/acscatal.6b02664 ↗
36. New application of Z-scheme Ag3PO4/g-C3N4 composite in converting CO2 to fuel10.1021/es5046309 ↗
37. NH2SO3H-SiO2 as a new water-compatible, recyclable heterogeneous catalyst for the synthesis of novel (α, β-unsaturated) β-amino ketones via aza-Michael reaction10.1002/aoc.3031 ↗
38. Synthesis of sulfamic acid supported on Cr-MIL-101 as a heterogeneous acid catalyst and efficient adsorbent for methyl orange dye10.1039/C8RA02941E ↗
39. Construction of network-like and flower-like 2H-MoSe2 nanostructures coupled with porous g-C3N4 for noble-metal-free photocatalytic H2 evolution under visible light10.1016/j.apcatb.2018.03.102 ↗
40. Enhanced hydrogen production from water on Pt/g-C3N4 by room temperature electron reduction10.1016/j.materresbull.2018.03.044 ↗
41. Enhanced visible-light-driven photocatalytic activities of Bi2Fe4O9/g-C3N4 composite photocatalysts10.1016/j.materresbull.2018.04.013 ↗
42. A Graphitic-C3N4 “Seaweed” architecture for enhanced hydrogen evolution10.1002/anie.201504985 ↗
43. Fluorescein-sensitized Au/g-C3N4 nanocomposite for enhanced photocatalytic hydrogen evolution under visible light10.1016/j.materresbull.2018.02.056 ↗
44. The preparation and characterization of sulfamic acid-intercalated layered double hydroxide10.1016/j.matlet.2014.12.096 ↗
45. Preparation of polydopamine sulfamic acid-functionalized silica gel as heterogeneous and recyclable nanocatalyst for acetylation of alcohols and amines under solvent-free conditions10.1007/s10562-018-2486-1 ↗
46. Integrating both homojunction and heterojunction in QDs self-decorated Bi2MoO6/BCN composites to achieve an efficient photocatalyst for Cr (VI) reduction10.1016/j.cej.2017.07.134 ↗
47. Metal-free 2D/2D phosphorene/g-C3N4 Van der Waals heterojunction for highly enhanced visible-light photocatalytic H2 production10.1002/adma.201800128 ↗
48. Remarkable enhancement in visible-light absorption and electron transfer of carbon nitride nanosheets with 1% tungstate dopant
49. Drastic enhancementof photocatalytic activities over phosphoric acid protonated porous g-C3N4 nanosheets under visible light10.1002/smll.201601668 ↗
50. Enhanced driving force and charge separation efficiency of protonated g-C3N4 for photocatalytic O2 evolution10.1021/acscatal.5b02185 ↗
51. A novel 2D/2D carbonized poly-(furfural alcohol)/g-C3N4 nanocomposites with enhanced charge carrier separation for photocatalytic H2 evolution10.1016/j.carbon.2017.01.045 ↗