Preparation of anatase powders from fluorine-complexed titanium(iv) aqueous solution using microwave irradiation

Ayllón, José A.; Peiró, Ana M.; Saadoun, L.; Vigil, Elena; Domènech, Xavier; Peral, José

doi:10.1039/b002723p

Cited by 32 publications

(18 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Large area scanning electron microscopy (SEM) images (Fig. 3b and 3c) reveal a smooth morphology, indicating that the films are dense and continuous unlike the loosely bound particles which have been shown previously45. Further characterization with atomic force microscopy (AFM) confirms the STEM findings that the microwave-grown TiO 2 films are comprised of 100–200 nm self-sintered grains that are aggregates of smaller crystallites (Fig.…”

Section: Resultssupporting

confidence: 68%

See 1 more Smart Citation

Microwave-assisted Low-temperature Growth of Thin Films in Solution

Reeja‐Jayan

Harrison

Yang

et al. 2012

Sci Rep

View full text Add to dashboard Cite

Thin films find a variety of technological applications. Assembling thin films from atoms in the liquid phase is intrinsically a non-equilibrium phenomenon, controlled by the competition between thermodynamics and kinetics. We demonstrate here that microwave energy can assist in assembling atoms into thin films directly on a substrate at significantly lower temperatures than conventional processes, potentially enabling plastic-based electronics. Both experimental and electromagnetic simulation results show microwave fields can selectively interact with a conducting layer on the substrate despite the discrepancy between the substrate size and the microwave wavelength. The microwave interaction leads to localized energy absorption, heating, and subsequent nucleation and growth of the desired films. Electromagnetic simulations show remarkable agreement with experiments and are employed to understand the physics of the microwave interaction and identify conditions to improve uniformity of the films. The films can be patterned and grown on various substrates, enabling their use in widespread applications.

show abstract

Section: Resultssupporting

confidence: 68%

“…While particles generally initiate in embryonic nuclei within a solution (“homogeneous nucleation”), thin film growth requires preferential nucleation at interfaces (“heterogeneous nucleation”). Earlier work has shown that microwave radiation can initiate favorable kinetics for thin film growth 4 5 .…”

mentioning

confidence: 99%

Microwave-assisted Low-temperature Growth of Thin Films in Solution

Reeja‐Jayan

Harrison

Yang

et al. 2012

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The anatase powder was synthesized by microwave method which allows the synthesis of anatase TiO 2 powder at very low temperature, under atmospheric pressure and in a short time. The microwave synthesis of anatase has advantages of quite faster, simpler and very energy efficient [13]. In microwave method, stock solution of 0.67 M TiO(OH) 2 was heated by microwave irradiation which was operated at 2.45 GHz for 10 min.…”

Section: Methodsmentioning

confidence: 99%

Synthesis and photocatalytic property of a mixture of anatase and rutile TiO2 doped with Fe by mechanical alloying process

Jho

Kim

et al. 2008

Journal of Alloys and Compounds

View full text Add to dashboard Cite

“…They confirmed that fluorine enhances the photocatalytic activity of TiO 2 powders for the photodecomposition of phenol in aqueous solution. Ayllón prepared anatase powders from fluorine-complexed titanium (IV) aqueous solution using microwave irradiation [18]. Yamaki et al [19,20] demonstrated the effects of F implantation in TiO 2 rutile single crystals followed by thermal annealing.…”

Section: Introductionmentioning

confidence: 99%

Preparation, Characterization and Photocatalytic Activities of F-doped TiO2Nanotubes

Yu¹,

Wu²,

Zhu³

et al. 2007

Catal Lett

View full text Add to dashboard Cite

F-doped TiO 2 nanotubes were prepared by impregnation method. The prepared catalysts were characterized by XRD, TEM, and XPS. The photocatalytic activity of F-doped TiO 2 nanotubes was evaluated through the photodegradation of aqueous methyl orange. The experiments demonstrated that the F-doped TiO 2 nanotubes calcined at 300°C possessed the best photocatalytic activity. Compared with pure TiO 2 nanotubes, the doping with F -significantly enhanced the photocatalytic efficiency. The high photocatalytic activity was ascribed to several beneficial effects produced by F-doping: creation of oxygen vacancies, presence of Ti 3+ , and so on.

show abstract

Preparation of anatase powders from fluorine-complexed titanium(iv) aqueous solution using microwave irradiation

Cited by 32 publications

References 17 publications

Microwave-assisted Low-temperature Growth of Thin Films in Solution

Microwave-assisted Low-temperature Growth of Thin Films in Solution

Synthesis and photocatalytic property of a mixture of anatase and rutile TiO2 doped with Fe by mechanical alloying process

Preparation, Characterization and Photocatalytic Activities of F-doped TiO2Nanotubes

Contact Info

Product

Resources

About