Preparation of TiO2 Ultrathin Film by Newly Developed Two-Dimensional Sol-Gel Process

Moriguchi, Isamu; Maeda, H.; Teraoka, Yasutake; Kagawa, Shuichi

doi:10.1021/ja00108a035

Cited by 94 publications

(61 citation statements)

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“…2 shows the UV-vis spectra of pristine TiO 2 , TiO 2 -Cl, TiO 2 -POEM and TiO 2 -PSSA nanoparticles dispersed in ethanol. The pristine TiO 2 nanoparticles exhibited a strong UV absorption at 320 nm, assigned to the typical absorption edge of TiO 2 [29,30]. Upon the modification with chlorine atoms, a maximum peak of UV absorption was blue-shifted to 283 nm, indicating the successful modification.…”

Section: Resultsmentioning

confidence: 99%

Surface-initiated atom transfer radical polymerization from TiO2 nanoparticles

Park

Koh

et al. 2009

Applied Surface Science

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Section: Resultsmentioning

confidence: 99%

Surface-initiated atom transfer radical polymerization from TiO2 nanoparticles

Park

Koh

et al. 2009

Applied Surface Science

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“…These absorption onsets are close to the thresholds of crystalline titanium dioxides (anatase, 387 nm; rutile, 413 nm). [37] The ca. 5 nm red-shift of the anatase titania tube sample may result from the existence of the crystalline defects in the sample which may be formed during the calcination process.…”

Section: Pure Titania Tube Formationmentioning

confidence: 99%

Tubular Titania Nanostructures via Layer‐by‐Layer Self‐Assembly

Yu¹,

Lu²,

Drennan³

et al. 2007

Adv Funct Materials

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Nanostructured titania‐polyelectrolyte composite and pure anatase and rutile titania tubes were successfully prepared by layer‐by‐layer (LbL) deposition of a water‐soluble titania precursor, titanium(IV) bis(ammonium lactato) dihydroxide (TALH) and the oppositely charged poly(ethylenimine) (PEI) to form multilayer films. The tube structure was produced by depositing inside the cylindrical pores of a polycarbonate (PC) membrane template, followed by calcination at various temperatures. The morphology, structure and crystal phase of the titania tubes were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X‐ray diffraction (XRD) and UV‐vis absorbance measurements. The as‐prepared anatase titania tubes exhibit very promising photocatalytic properties, demonstrated by the degradation of the azodye methyl orange (MO) as a model molecule. They are also easily separated from the reaction system by simple filtration or centrifugation, allowing for straightforward recycling. The reported strategy provides a simple and versatile technique to fabricate titania based tubular nanostructures, which could easily be extended to prepare tubular structures of other materials and may find application in catalysis, chemical sensing, and nanodevices.

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“…In the past decade, the Langmuir-Blodgett LB technique, which is usually used in the preparation of highly ordered multilayer fi lms of various long-chain amphiphiles, has been used to obtain ultrathin TiO 2 fi lms. This technique has significant advantages, including excellent control of fi lm thickness and fi lm uniformity over large areas [3][4][5][6] . For example, ultrathin TiO 2 fi lms have been synthesized from titanium alkoxides by a two-dimensional sol-gel process 4 .…”

Section: Introductionmentioning

confidence: 99%