One-pot synthesis of C-dots modified TiO2 nanosheets/UiO-66-NH2 with improved photocatalytic activity under visible light
Source abstract
Abstract
Abstract A simple one-pot method was employed to synthesize C-dots modified TiO2 nanosheets (NS)/UiO-66-NH2 for enhancing photocatalytic activity. Anatase TiO2 NS and UiO-66-NH2 were closely combined and C-dots were well modified on their surfaces. The photocatalytic activities of catalysts were assessed through photodegrading ketoprofen (10 mg/L) under visible light. C-dots/TiO2 NS/UiO-66-NH2 degraded 90% of ketoprofen in 80 min, and owned the higher kinetic rate than TiO2 NS (24 times) or TiO2 NS/UiO-66-NH2 (2.1 times). The results indicated that C-dots/TiO2 NS/UiO-66-NH2 exhibited the most superb visible-light photocatalytic activity. Besides, C-dots/TiO2 NS/UiO-66-NH2 showed good stability and reusability in four runs of degrading ketoprofen. The improved photocatalytic performance was caused by the heterostructure of TiO2 NS and UiO-66-NH2 and photoelectrical performance of C-dots, effectively absorbing visible light and promoting photoelectrons transfer.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Advanced Nanomaterials in Catalysis · TiO2 Photocatalysis and Solar Cells
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (55)
Show source-provided references
1. Revisiting one-dimensional TiO2 based hybrid heterostructures for heterogeneous photocatalysis: a critical review10.1039/C6QM00141F ↗
2. One-pot solvothermal synthesis of carbon dots/Ag nanoparticles/TiO2 nanocomposites with enhanced photocatalytic performance10.1016/j.ceramint.2018.09.017 ↗
3. A review on graphene-TiO2 and doped graphene-TiO2 nanocomposite photocatalyst for water and wastewater treatment10.1080/21622515.2016.1264489 ↗
4. Understanding TiO2 photocatalysis: mechanisms and materials10.1021/cr5001892 ↗
5. Highly efficient TiO2 single-crystal photocatalyst with spatially separated Ag and F-bi-cocatalysts: orientation transfer of photogenerated charges and their rapid interfacial reaction10.1039/C6TA02039A ↗
6. Effective photocatalysis of functional nanocomposites based on carbon and TiO2 nanoparticles10.1039/c3nr01033c ↗
7. Enhanced photocatalytic H2-production activity of graphene-modified titania nanosheets10.1039/c1nr10610d ↗
8. Boosting up the low catalytic activity of silver for H2 production on Ag/TiO2 photocatalyst: thiocyanate as a selective modifier10.1021/acscatal.5b02376 ↗
9. Construction of heterostructured g-C3N4/Ag/TiO2 microspheres with enhanced photocatalysis performance under visible-light irradiation10.1021/am503674e ↗
10. Tailored visible-light driven anatase TiO2 photocatalysts based on controllable metal ion doping and ordered mesoporous structure10.1039/c2jm15965a ↗
11. Synthesis and enhanced photocatalytic activity of black porous Zr-doped TiO2 monoliths10.1142/S1793292016500685 ↗
12. Enhanced H2 production activity under solar irradiation over N-doped TiO2 prepared using pyridine as a precursor: a typical sample of N-doped TiO2 series10.1080/10667857.2015.1118587 ↗
13. Hybridizing TiO2 with nitrogen-doped carbon: a new route to A highly visible light-active photocatalyst10.1002/slct.201700017 ↗
14. TiO2-ZnO composite sphere decorated with ZnO clusters for effective charge isolation in photocatalysis10.1021/acs.iecr.5b01471 ↗
15. Hierarchical CuO-TiO2 hollow microspheres for highly efficient photodriven reduction of CO2 to CH410.1021/acssuschemeng.5b00724 ↗
16. Photoelectrochemical response and corrosion behavior of CdS/TiO2 nanocomposite films in an aerated 0.5 M NaCl solution10.1016/j.apsusc.2017.05.093 ↗
17. Chemical modification of TiO2 nanotube arrays for label-free optical biosensing applications10.1016/j.apsusc.2017.05.029 ↗
18. Enhanced photocatalytic H2-production activity of anatase TiO2 nanosheet by selectively depositing dual-cocatalysts on {101} and {001} facets10.1016/j.apcatb.2016.05.074 ↗
19. Facile preparation of exposed {001} facet TiO2 nanobelts coated by monolayer carbon and its high-performance photocatalytic activity10.1007/s10853-017-1446-2 ↗
20. Synthesis and improved photocatalytic activity of ultrathin TiO2 nanosheets with nearly 100% exposed (001) facets10.1016/j.ceramint.2014.07.050 ↗
21. 2D/2D/2D heterojunction of Ti3C2 MXene/MoS2 nanosheets/TiO2 nanosheets with exposed (001) facets toward enhanced photocatalytic hydrogen production activity10.1016/j.apcatb.2019.01.051 ↗
22. Construction of novel Z-scheme nitrogen-doped carbon dots/{0 0 1} TiO2 nanosheet photocatalysts for broad-spectrum-driven diclofenac degradation: mechanism insight, products and effects of natural water matrices10.1016/j.cej.2018.09.092 ↗
23. In-situ deposition of Ag3PO4 on TiO2 nanosheets dominated by (001) facets for enhanced photocatalytic activities and recyclability10.1016/j.ceramint.2017.05.178 ↗
24. A sandwich-like heterostructure of TiO2 nanosheets with MIL-100(Fe): a platform for efficient visible-light-driven photocatalysis10.1016/j.apcatb.2017.02.073 ↗
25. CO2 capture and photocatalytic reduction using bifunctional TiO2/MOF nanocomposites under UV–vis irradiation10.1016/j.apcatb.2017.03.039 ↗
26. Improving photocatalytic hydrogen production of metal-organic framework UiO-66 octahedrons by dye-sensitization10.1016/j.apcatb.2014.11.007 ↗
27. Fe-based metal-organic frameworks for highly selective photocatalytic benzene hydroxylation to phenol10.1021/acscatal.5b01949 ↗
28. Boosting photocatalytic hydrogen production of a metal-organic framework decorated with platinum nanoparticles: the platinum location matters10.1002/anie.201603990 ↗
29. Sonocrystallization of ZIF-8 on electrostatic spinning TiO2 nanofibers surface with enhanced photocatalysis property through synergistic effect10.1021/acsami.6b05746 ↗
30. Flower-like BiOBr/UiO-66-NH2 nanosphere with improved photocatalytic property for norfloxacin removal10.1016/j.chemosphere.2018.12.086 ↗
31. Construction of CdS@UIO-66-NH2 core-shell nanorods for enhanced photocatalytic activity with excellent photostability10.1016/j.jcis.2018.03.114 ↗
32. Preparation of a novel ternary composite of TiO2/UiO-66-NH2/graphene oxide with enhanced photocatalytic activities10.1007/s10562-018-2353-0 ↗
33. Enhanced photocatalytic degradation of ciprofloxacin using novel C-dot@Nitrogen deficient g-C3N4: synergistic effect of nitrogen defects and C-dots10.1016/j.apsusc.2018.09.183 ↗
34. Light-induced synthesis of photoluminescent carbon nanoparticles for Fe3+ sensing and photocatalytic hydrogen evolution10.1039/C4TA05155F ↗
35. Carbon quantum dots serving as spectral converters through broadband upconversion of near-infrared photons for photoelectrochemical hydrogen generation10.1039/c3ta12568h ↗
36. Step-by-Step improving photocatalytic hydrogen evolution activity of NH2-UiO-66 by constructing heterojunction and encapsulating carbon nanodots10.1021/acssuschemeng.8b01740 ↗
37. Enhanced photocatalytic H2-production activity of C-dots modified g-C3N4/TiO2 nanosheets composites10.1016/j.jcis.2017.12.002 ↗
38. Preparation of coal-based C-Dots/TiO2 and its visible-light photocatalytic characteristics for degradation of pulping black liquor10.1016/j.jphotochem.2017.05.031 ↗
39. Carbon quantum dots/TiO2 composites for efficient photocatalytic hydrogen evolution10.1039/c3ta14108j ↗
40. High quantum yield graphene quantum dots decorated TiO2 nanotubes for enhancing photocatalytic activity10.1016/j.apsusc.2016.03.077 ↗
41. Preparation and visible light photocatalytic activity of carbon quantum dots/TiO2 nanosheet composites10.1016/j.carbon.2013.11.053 ↗
42. Carbon quantum dots/hydrogenated TiO2 nanobelt heterostructures and their broad spectrum photocatalytic properties under UV, visible, and near-infrared irradiation10.1016/j.nanoen.2014.10.025 ↗
43. Hydrothermal synthesis of NH2-UiO-66 and its application for adsorptive removal of dye10.1016/j.apt.2018.07.010 ↗
44. Comparison of Pd-UiO-66 and Pd-UiO-66-NH2 catalysts performance for phenol hydrogenation in aqueous medium10.1016/j.fuel.2017.05.029 ↗
45. Surface heterojunction between (001) and (101) facets of ultrafine anatase TiO2 nanocrystals for highly efficient photoreduction CO2 to CH410.1016/j.apcatb.2016.05.071 ↗
46. TiO2 encapsulated in Salicylaldehyde-NH2-MIL-101(Cr) for enhanced visible light-driven photodegradation of MB10.1016/j.apcatb.2016.03.034 ↗
47. Synthesis and characterization of porous TiO2-NS/Pt/GO aerogel: a novel three-dimensional composite with enhanced visible-light photoactivity in degradation of chlortetracycline10.1016/j.jphotochem.2017.05.036 ↗
48. Degradation of aqueous ketoprofen by heterogeneous photocatalysis using Bi2S3/TiO2-Montmorillonite nanocomposites under simulated solar irradiation10.1016/j.clay.2018.09.008 ↗
49. TiO2-graphene nanocomposite supported on floating autoclaved cellular concrete for photocatalytic removal of organic compounds10.1016/j.jece.2017.06.028 ↗
50. A novel Ag-BiOBr-rGO photocatalyst for enhanced ketoprofen degradation: kinetics and mechanisms10.1016/j.scitotenv.2019.04.418 ↗
51. Mechanism of degradation of ketoprofen by heterogeneous photocatalysis in aqueous solution10.1016/j.apcatb.2013.05.018 ↗
52. Synthesis of Au@UiO-66(NH2) structures by small molecule-assisted nucleation for plasmon-enhanced photocatalytic activity10.1039/C5CC07042B ↗
53. Band alignment of rutile and anatase TiO210.1038/nmat3697 ↗
54. CdS-decorated UiO-66(NH2) nanocomposites fabricated by a facile photodeposition process: an efficient and stable visible-light-driven photocatalyst for selective oxidation of alcohols10.1039/c3ta12645e ↗
55. Fabrication of the ternary heterojunction Cd0.5Zn0.5S@UIO-66@g-C3N4 for enhanced visible-light photocatalytic hydrogen evolution and degradation of organic pollutants10.1039/C7QI00638A ↗