Morphology, size control, and photocatalytic activities of titanium dioxide nanoparticles synthetized by microemulsion method
Source abstract
Abstract
In the present work, we successfully synthesized titanium dioxide nanoparticles (TiO2-NPs) by reverse microemulsion method using cyclohexane, aqueous ammonia materials, and various ratios of surfactants. Using this method, nanoparticles of various morphologies, such as filamentous, sheet, and spherical morphologies, were synthesized. In addition, NPs in very small size (i.e., 4–7 nm for spherical morphology) were obtained. The as-prepared samples showed light absorption in the range of 200–300 nm, indicating their potential application as an UV light induced photocatalyst. The obtained TiO2-NPs were amorphous and can be converted to anatase by heating at 600–750 °C and to rutile by heating above 900 °C. In addition, TiO2-NPs with sheet morphology showed the highest activity on photocatalytic decomposition of methyl orange relative to spherical and filamentous morphologies. We also showed that doping of tin (Sn) atoms in TiO2-NPs causes a significant increase in the photocatalytic activity of NPs and the time needed for photocatalytic decomposition decreases to around one-fifth of the time needed for nondoped NPs. The results of the present research indicated that the microemulsion process is an effective/potential method for the synthesis of some new functional materials.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: TiO2 Photocatalysis and Solar Cells · Advanced Photocatalysis Techniques · Copper-based nanomaterials and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics, Iran University of Science and Technology 1 , Tehran 16844, Iran
Department of Chemistry, University of Zanjan 2 , Zanjan 45195-313, Iran
Department of Basic Sciences, Birjand University of Technology 3 , Birjand, Iran
References (55)
Show source-provided references
1. Room temperature synthesis of titanium dioxide nanoparticles of different phases in water in oil microemulsion10.1016/j.colsurfa.2010.08.001 ↗
2. TiO2 pigment technology: A review10.1016/0033-0655(92)80001-d ↗
3. Angle-dependent optical effects deriving from submicron structures of films and pigments10.1021/cr970075u ↗
4. Mechanisms of photocatalytic degradation of Victoria Blue R using nano-TiO210.1016/j.seppur.2008.02.006 ↗
5. Physical properties of titanium oxide thin films prepared by DC magnetron sputtering: Influence substrate temperature and O2/Ar in the gas mixture10.1007/s10894-013-9626-9 ↗
6. ZnO, Cu-doped ZnO, Al-doped ZnO and Cu-Al doped ZnO thin films: Advanced micro-morphology, crystalline structures and optical properties10.1016/j.rinp.2023.106209 ↗
7. The effect of Brij® surfactants in sol–gel processing for the production of TiO2 thin films10.1016/j.poly.2014.08.050 ↗
8. Green synthesis of Au/TiO2 for effective dye degradation in aqueous system10.1016/j.cej.2013.06.053 ↗
9. Titanium oxide based photocatalytic materials development and their role of in the air pollutants degradation: Overview and forecast10.1016/j.envint.2019.01.015 ↗
10. Synthesis of nanostructured titania templated by anionic surfactant in acidic conditions10.1023/a:1020966016542 ↗
11. Synthesis of nanometer-sized TiO2 particles by a microemulsion method10.1016/s0965-9773(99)00354-2 ↗
12. Silver-doped TiO2 prepared by microemulsion method: Surface properties, bio- and photoactivity10.1016/j.seppur.2010.03.002 ↗
13. Kinetics of titanium dioxide precipitation by thermal hydrolysis10.1016/0021-9797(86)90005-6 ↗
14. Morphology evolution of TiO2 facets and vital influences on photocatalytic activity10.1021/am201800j ↗
15. Fabrication of spherical multi-hollow TiO2 nanostructures for photoanode film with enhanced light-scattering performance10.1021/ie202049j ↗
16. Sonochemical synthesis of TiO2 nanoparticles on graphene for use as photocatalyst10.1016/j.ultsonch.2011.03.021 ↗
17. Sonochemical preparation of TiO2 nanoparticles10.1016/j.matlet.2007.02.051 ↗
18. Preparation of mesoporous titania by surfactant-assisted sol–gel processing of acetaldoxime-modified titanium alkoxides10.1016/j.jnoncrysol.2010.04.035 ↗
19. A review on nano-TiO2 sol–gel type syntheses and its applications10.1007/s10853-011-5378-y ↗
20. Synthesis of nanocrystalline TiO2 with high photoactivity and large specific surface area by sol–gel method10.1016/j.materresbull.2004.11.001 ↗
21. Morphology control of TiO2 nanoparticle in microemulsion and its photocatalytic property10.1021/sc400328u ↗
22. Eco-friendly synthesis of rutile TiO2 nanostructures with controlled morphology for efficient lithium-ion batteries10.1016/j.cej.2016.06.051 ↗
23. Photoactivity and phase stability of ZrO2-doped anatase-type TiO2 directly formed as nanometer-sized particles by hydrolysis under hydrothermal conditions10.1016/s0022-4596(02)00013-0 ↗
24. Effect of surfactants on preparation of nanometer TiO2 by pyrohydrolysis10.1016/s1003-6326(07)60068-5 ↗
25. Solvothermal synthesis of well-defined TiO2 mesoporous nanotubes with enhanced photocatalytic activity10.1039/c0cc02998j ↗
26. Comparative study on nano-crystalline titanium dioxide catalyzed photocatalytic degradation of aromatic carboxylic acids in aqueous medium10.1016/j.jiec.2011.02.035 ↗
27. Preparations of nanosized TiO2 in reverse microemulsion and their photocatalytic activity10.1016/j.solmat.2004.11.010 ↗
28. Reverse micelles for nanoparticle synthesis and biomolecule separation
29. Titanium dioxide nanomaterials: Synthesis, properties, modifications, and applications10.1021/cr0500535 ↗
30. 1999
31. 2019 · 47
32. Photocatalytic reaction and degradation of methylene blue on TiO2 nano-sized particles10.1016/j.ijleo.2016.04.026 ↗
33. A review on the visible light active titanium dioxide photocatalysts for environmental applications10.1016/j.apcatb.2012.05.036 ↗
34. Modified TiO2 for environmental photocatalytic applications: A review10.1021/ie303468t ↗
35. Preparation of nanosized TiO2/ZnO composite catalyst and its photocatalytic activity for degradation of methyl orange10.1016/j.jphotochem.2007.07.008 ↗
36. Optimization of photocatalytic degradation conditions of Direct Red 23 using nano-Ag doped TiO210.1016/j.seppur.2008.03.002 ↗
37. Preparation and characterization of TiO2 photocatalysts by Fe3+ doping together with Au deposition for the degradation of organic pollutants10.1016/j.apcatb.2008.10.008 ↗
38. Recent progress in the synthesis of spherical titania nanostructures and their applications10.1002/adfm.201201880 ↗
39. Phase and morphological transitions of titania/titanate nanostructures from an acid to an alkali hydrothermal environment10.1039/c2ta00755j ↗
40. Highly efficient and stable Ag–AgBr/TiO2 composites for destruction of Escherichia coli under visible light irradiation10.1016/j.watres.2012.11.057 ↗
41. Role of surface/interfacial Cu2+ sites in the photocatalytic activity of coupled CuO–TiO2 nanocomposites10.1021/jp8068392 ↗
42. Intermediate state created by dopant ions (Mn, Co and Zr) into TiO2 nanoparticles for degradation of dyes under visible light10.1016/j.molliq.2016.08.105 ↗
43. Photocatalytic degradation of 2,4-dichlorophenol with V2O5-TiO2 catalysts: Effect of catalyst support and surfactant additives10.1016/s1872-2067(15)61035-x ↗
44. The optical properties of aluminum-doped zinc oxide thin films (AZO): New methods for estimating gap states10.1007/s10948-018-4828-z ↗
45. The effect of geometry characterizations and annealing processing on dissipation electrical energy in ZnO films10.1007/s10765-019-2536-y ↗
46. Effects of surfactants on microstructure and photocatalytic activity of TiO2 nanoparticles prepared by the hydrothermal method10.1016/j.mssp.2011.05.007 ↗
47. Photocatalysis on TiO2 surfaces: Principles, mechanisms, and selected results10.1021/cr00035a013 ↗
48. Zirconium doped mesoporous TiO2 multilayer thin films: Influence of the zirconium content on the photodegradation of organic pollutants10.1016/j.cattod.2019.01.043 ↗
49. A facile synthesis of rutile-rich titanium oxide nanoparticles using reverse micelle method and their photocatalytic applications10.1016/j.jiec.2015.10.020 ↗
50. Photocatalytic enhancement of TiO2 by B and Zr co-doping and modulation of microstructure10.1016/j.apsusc.2016.03.192 ↗
51. Carbon films embedded by nickel nanoparticles: Fluctuation in hopping rate and variable-range hopping with respect to annealing temperature10.1007/s00339-016-0074-z ↗
52. Electronic structure and x-ray spectroscopy of Cu2MnAl1–xGax10.1063/1.4996650 ↗
53. Correlation between the multifractal structure, crystalline and photoluminescence properties of engineered CZO thin films10.1016/j.ijhydene.2017.04.045 ↗
54. Anatase TiO2 nanoparticles synthesis via simple hydrothermal route: Degradation of orange II, methyl orange and rhodamine B10.1016/j.molcata.2012.06.013 ↗
55. Atomic weights of the elements 2013 (IUPAC Technical Report)10.1515/pac-2015-0305 ↗