Walnut-like ZnO@Zn2TiO4 multicore-shell submicron spheres with a thin carbon layer: Fine synthesis, facile structural control and solar light photocatalytic application
Source abstract
Abstract
Abstract In this study, we propose a fine fabrication method of walnut-like ZnO@Zn2TiO4 multicore-shell submicron spheres for the solar light-responsive photocatalysis. Poly(methacrylic acid/ethylene glycol dimethacrylate) [poly(MAA/EGDMA)] microspheres were used as sacrificial template to create the hierarchically-structured hybrid metal oxide spheres with a thin carbon layer. Heterogeneous multicore-shell structure like a walnut depends on the monomer ratio of poly(MAA/EGDMA) microspheres. The thin carbon layer formed on the surface of ZnO nano-grains can cause visible light response and effectively impede the recombination of photo-generated electron-hole. When the walnut-like ZnO@Zn2TiO4 multicore-shell submicron spheres with a thin carbon layer are tested as photocatalysts under solar light, the photodegradation of organic dye of above 93% is exhibited for 1 h due to the multiple light scattering originated from the unique structure and a coexistence of ZnO and Zn2TIO4.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells · Transition Metal Oxide Nanomaterials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (56)
Show source-provided references
1. Metal nanoparticles or metal oxide nanoparticles, an efficient and promising family of novel heterogeneous catalysts in organic synthesis10.1039/b913539a ↗
2. Semiconducting metal oxide sensor array for the selective detection of combustion gases10.1016/S0925-4005(03)00240-5 ↗
3. Semiconducting metal oxide based sensors for selective gas pollutant detection10.3390/s91008158 ↗
4. Nano-sized transition-metal oxides as negative-electrode materials for lithium-ion batteries10.1038/35035045 ↗
5. Recent advances in metal oxide-based electrode architecture design for electrochemical energy storage10.1002/adma.201202146 ↗
6. Role of graphene/metal oxide composites as photocatalysts, adsorbents and disinfectants in water treatment: a review10.1039/C3RA45013A ↗
7. Transition metal oxide alloys as potential solar energy conversion materials10.1039/c2ta00816e ↗
8. Photocatalysis on TiO2 surfaces: principles, mechanisms, and selected results10.1021/cr00035a013 ↗
9. A review of TiO2 nanoparticles
10. Cost-effective large-scale synthesis of ZnO photocatalyst with excellent performance for dye photodegradation10.1039/c2cc16434e ↗
11. The design and development of highly reactive titanium oxide photocatalysts operating under visible light irradiation10.1016/S0021-9517(02)00104-5 ↗
12. Solar photocatalytic oxidation of NO by electronspun TiO2/ZnO composite nanofiber mat for enhancing indoor air quality10.1002/jctb.4506 ↗
13. Nanostructures of zinc oxide10.1504/IJNT.2009.022917 ↗
14. A VOx/meso-TiO 2 catalyst for methanol oxidation to dimethoxymethane10.1016/j.catcom.2009.07.029 ↗
15. A novel method for metal oxide nanowire synthesis10.1088/0957-4484/20/16/165603 ↗
16. Facile fabrication of 3D-ordered macroporous nanocrystalline iron oxide films with highly efficient visible light induced photocatalytic activity10.1021/jp102525y ↗
17. Controlled synthesis and visible light photocatalytic activity of Bi12GeO20 uniform microcrystals10.1038/srep06298 ↗
18. Biotemplated hierarchical nanostructure of layered double hydroxides with improved photocatalysis performance10.1021/nn901055d ↗
19. Non-metal doping of transition metal oxides for visible-light photocatalysis10.1016/j.cattod.2013.10.088 ↗
20. Development of modified N doped TiO2 photocatalyst with metals, nonmetals and metal oxides10.1039/b927575d ↗
21. Photocatalytic activity of metal-doped titanium oxide films prepared by sol-gel process10.1088/1742-6596/61/1/151 ↗
22. Enhanced photocatalytic behavior and excellent electrochemical performance of hierarchically structured NiO microspheres10.1039/C4RA04688A ↗
23. Synthesis of hierarchically structured metal oxides and their application in heavy metal ion removal10.1002/adma.200800623 ↗
24. Synthesis of 3D micro-and nano-hierarchical structure InVO4 porous microspheres with improved visible-light photocatalytic activities10.1007/s10853-013-7573-5 ↗
25. Hierarchical WO3 hollow shells: dendrite, sphere, dumbbell, and their photocatalytic properties10.1002/adfm.200701468 ↗
26. Template-free synthesis and photocatalytic activity of hierarchical porous titania with controlled texture and crystalline structure10.1016/j.apcata.2010.08.041 ↗
27. Hierarchical porous TiO2 templated from natural Artemia cyst shells for photocatalysis applications10.1039/C4RA01192A ↗
28. Hierarchical ZnO microarchitectures assembled by ultrathin nanosheets: hydrothermal synthesis and enhanced photocatalytic activity10.1039/c0jm03390a ↗
29. Hydrothermal synthesis, characterization and photocatalytic properties of Cu2PO4OH with hierarchical morphologies10.1166/jnn.2010.1844 ↗
30. High performance Cu2O/ZnO core-shell nanorod arrays synthesized using a nanoimprint GaN template by the hydrothermal growth technique10.1364/OME.4.001473 ↗
31. Interface engineering for efficient charge collection in Cu2O/ZnO heterojunction solar cells with ordered ZnO cavity-like nanopatterns10.1016/j.solmat.2013.04.021 ↗
32. Enhanced photocatalytic performance of TiO2-ZnO hybrid nanostructures10.1038/srep04181 ↗
33. CdS embedded TiO2 hybrid nanospheres for visible light photocatalysis10.1016/j.molcata.2014.02.020 ↗
34. Bi2S3/TiO2 and CdS/TiO2 heterojunctions as an available configuration for photocatalytic degradation of organic pollutant10.1016/j.jphotochem.2004.02.006 ↗
35. Low-temperature synthesis of CdS/TiO2 composite photocatalysts: influence of synthetic procedure on photocatalytic activity under visible light10.1016/j.molcata.2012.01.001 ↗
36. Photocatalytic degradation of gaseous benzene with CdS-sensitized TiO2 film coated on fiberglass cloth10.1016/j.molcata.2012.06.004 ↗
37. Zn2TiO4− ZnO nanowire axial heterostructures formed by unilateral diffusion10.1021/jp107513a ↗
38. Significant enhancement in the photocatalytic activity of N, W co-doped TiO2 nanomaterials for promising environmental applications10.1088/0957-4484/23/47/475706 ↗
39. Novel multi-layer cross-linked TiO2/C nanosheets and their photocatalytic properties10.1039/c3nj01342a ↗
40. Highly ordered hollow oxide nanostructures: the kirkendall effect at the nanoscale10.1002/smll.201202824 ↗
41. Rattle type α-Fe2O3 submicron spheres with a thin carbon layer for lithium-ion battery anodes10.1039/c3ta11852e ↗
42. Synthesis and characterization of pH-and temperature-sensitive poly (methacrylic acid)/poly (N-isopropylacrylamide) interpenetrating polymeric networks10.1021/ma991398q ↗
43. Synthesis of carbon-doped photocatalytic TiO2 nano-powders by AFD process10.1016/j.jiec.2010.07.012 ↗
44. Carbon-doped TiO2 photocatalyst synthesized without using an external carbon precursor and the visible light activity10.1016/j.apcatb.2009.06.001 ↗
45. Preparation of ZnO-Zn2TiO4 sol composite films and its photocatalytic activities
46. Flower-like hierarchical h-MoO3: new finding of efficient visible light driven nano photocatalyst for methylene blue degradation10.1039/c3cy20764a ↗
47. Doping copper into ZIF-67 for enhancing gas uptake capacity and visible-light driven photocatalytic degradation of organic dye10.1039/c2jm35602c ↗
48. Carbon-coated ZnO submicron spheres functionalized with carboxylate groups and effect of dispersion stability in the colloidal system for high photocatalytic activity10.1039/C5RA21265K ↗
49. One-pot controlled synthesis of sea-urchin shaped Bi2S3/CdS hierarchical heterostructures with excellent visible light photocatalytic activity10.1039/C4DT01176G ↗
50. Research advances in photocatalysis of inorganic hollow spheres10.4236/wjnse.2014.44015 ↗
51. Optical and structrual properties of ZnO + Zn2TiO4 thin films prepared by the sol-gel method10.1007/s10854-007-9267-8 ↗
52. Preparation and properties of uniform-coated colloidal particles. 6. Titania on zinc oxide10.1021/la00060a008 ↗
53. Remarkable decrease in threshold for electrically pumped random ultraviolet lasing from ZnO film by incorporation of Zn2TiO4 nanoparticles10.1364/OE.19.008662 ↗
54. Enhanced visible light photocatalytic activity of novel polymeric g-C3N4 loaded with Ag nanoparticles10.1016/j.apcata.2011.10.006 ↗
55. Carbon coating of anatase-type TiO2 and photoactivity10.1039/b201942f ↗
56. The effects of activated carbon supports on the structure and properties of TiO2 nanoparticles prepared by a sol-gel method10.1016/j.apsusc.2007.05.057 ↗