Preparation and nitrogen-doping of three-dimensionally ordered macroporous TiO2 with enhanced photocatalytic activity
Source abstract
Abstract
Three-dimensionally ordered macroporous titanium dioxide (3DOM TiO2) was synthesized through a colloidal crystal template method using self-made poly-(methyl methacrylate) (PMMA) microspheres as a hard template. Nitrogen-doped 3DOM TiO2 (N-3DOM TiO2) samples were also prepared by an impregnation method. The samples were characterized by techniques such as SEM, EDX, XRD, TGA, and UV–visible spectroscopy. The photocatalytic activities of these catalysts were tested by degradation of methyl orange (MO) under UV–visible light and visible light respectively. The experimental results show that the 3DOM TiO2 and N-3DOM TiO2 exhibited improved optical absorption and subsequently enhanced photodegradation efficiency of MO compared to TiO2 particles. & 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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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 (30)
Show source-provided references
1. Friedel–Crafts alkylation properties of aluminosilica SBA-15 meso/macroporous monoliths and mesoporous powders10.1016/j.jcat.2003.09.005 ↗
2. Directing zeolite structures into hierarchically nanoporous architectures10.1126/science.1204452 ↗
3. Hierarchically ordered oxides10.1126/science.282.5397.2244 ↗
4. High electroactivity of polyaniline in supercapacitors by using a hierarchically porous carbon monolith as a support10.1002/adfm.200700518 ↗
5. Colloidal crystal templating of three-dimensionally ordered macroporous solids: materials for photonics and beyond10.1016/S1359-0286(01)00022-5 ↗
6. Morphological control in colloidal crystal templating of inverse opals, hierarchical structures, and shaped particles10.1021/cm702107n ↗
7. Three-dimensionally ordered macroporous titania with structural and photonic effects for enhanced photocatalytic efficiency10.1002/cssc.201100082 ↗
8. Amplified photochemistry with slow photons10.1002/adma.200600588 ↗
9. Structured porous materials via colloidal crystal templating: from inorganic oxides to metals10.1002/(SICI)1521-4095(200004)12:7<531::AID-ADMA531>3.0.CO;2-S ↗
10. Optimizing sol−gel infiltration and processing methods for the fabrication of high-quality planar titania inverse opals10.1021/cm800072j ↗
11. Preparation and catalytic evaluation of macroporous crystalline sulfated zirconium dioxide templated with colloidal crystals10.1021/cm030019b ↗
12. Direct synthesis of ordered macroporous silica materials functionalized with polyoxometalate clusters10.1021/cm000830b ↗
13. Hierarchically ordered meso/macroporous γ-alumina for enhanced hydrodesulfurization performance10.1016/j.micromeso.2012.03.022 ↗
14. Increasing the conversion efficiency of dye-sensitized TiO2 photoelectrochemical cells by coupling to photonic crystals10.1021/jp044228a ↗
15. Formation of efficient dye-sensitized solar cells by introducing an interfacial layer of hierarchically ordered macro-mesoporous TiO2 film10.1007/s11426-011-4288-9 ↗
16. One-step solvothermal synthesis of hierarchically porous nanostructured CdS/TiO2 heterojunction with higher visible light photocatalytic activity10.1016/j.apsusc.2013.06.122 ↗
17. Degradation of methylene blue by three-dimensionally ordered macroporous titania10.1021/es070160b ↗
18. Electrochemical photolysis of water at a semiconductor electrode10.1038/238037a0 ↗
19. A novel aqueous process for preparation of crystal form-controlled and highly crystalline BiVO4 powder from layered vanadates at room temperature and its photocatalytic and photophysical properties10.1021/ja992541y ↗
20. Electrochemical behavior and photocatalytic performance of nitrogen-doped TiO2 nanotubes arrays powders prepared by combining anodization with solvothermal process10.1016/j.ceramint.2012.12.068 ↗
21. Enhanced visible-light activity of F-N co-doped TiO2 nanocrystals via nonmetal impurity, Ti3+ ions and oxygen vacancies10.1016/j.apsusc.2013.09.094 ↗
22. Simple fabrication and photocatalytic activity of S-doped TiO2 under low power LED visible light irradiation10.1016/j.ceramint.2009.04.021 ↗
23. Synthesis and characterization of carbon-doped TiO2 nanostructures with enhanced visible light response10.1021/cm071244m ↗
24. Low-temperature synthesis of visible-light active fluorine/sulfur Co-doped mesoporous TiO2 microspheres10.1002/chem.201001676 ↗
25. Study on the photocatalysis of F–S co-doped TiO2 prepared using solvothermal method10.1016/j.apcatb.2010.03.004 ↗
26. Preparation of highly visible-light active N-doped TiO2 photocatalyst10.1039/c0jm00376j ↗
27. Synthesis of macroporous minerals with highly ordered three-dimensional arrays of spheroidal voids10.1126/science.281.5376.538 ↗
28. Synthesis of highly ordered, three-dimensional, macroporous structures of amorphous or crystalline inorganic oxides, phosphates, and hybrid composites10.1021/cm980666g ↗
29. A simple method to prepare N-doped titania hollow spheres with high photocatalytic activity under visible light10.1016/j.jhazmat.2008.12.139 ↗
30. Enhanced photoconductivity in thin-film semiconductors optically coupled to photonic crystals10.1002/adma.200700564 ↗