Formation Mechanism of TiO<sub>2</sub>-Derived Titanate Nanotubes Prepared by the Hydrothermal Process

Nakahira, Atsushi; Kubo, Takashi; Numako, Chiya

doi:10.1021/ic9025816

Cited by 137 publications

(80 citation statements)

References 47 publications

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“…In addition, the absorption bands at 3404 and 1608 cm −1 indicates the O-H stretching mode and H-O-H bending mode, respectively. These results highlight the presence of water molecules in a interstitial position, and also the stretching vibration of water molecules produces another broad peak at 3635 cm −1 which further confirm that the samples are hydrated [40,43,45]. We have compared the current density and the peak potential changes of bare and CoHCF@TNT-modified electrodes on electrocatalytic oxidation of hydrazine, and the resulting cyclic voltammograms are shown in Figure 6.…”

Section: Ft-ir Spectral Studies For Tnt Andsupporting

confidence: 57%

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Cobalt Hexacyanoferrate-Decorated Titania Nanotube: CoHCF@TNT Modified GCE as an Electron Transfer Mediator for the Determination of Hydrazine in Water Samples

Sophia

Devi

Pandian

2012

ISRN Analytical Chemistry

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The cobalt hexacyanoferrate-decorated titania nanotube (CoHCF@TNT) was prepared by dispersing 100 mg of titania nanotube (TNT) to a solution of an equimolar concentration of CoCl 2 · 6H 2 O and K 3 [Fe(CN) 6 ] containing 0.05 M KCl solution (35 mL). The TNT was synthesized by hydrothermal method using Degussa P-25 TiO 2 in 2 M NaOH as reported in the literature. The CoHCF@TNT was isolated and characterized by DRS-UV, FE-SEM, FT-IR, and XRD analysis. The electrochemical behavior of the CoHCF@TNT was carried out in 0.1 M phosphate buffer. The CoHCF@TNT modified system showed an excellent electron transfer mediator for the oxidation of hydrazine at +0.5 V versus Ag wire. The proposed method can be utilized for the amperometry detection of hydrazine from environmental samples. A calibration plot was constructed by plotting the concentration of hydrazine against the peak current. The current response was linear in the ranges of the hydrazine concentration from 5 × 10 −4 M to 2.5 × 10 −3 M with a slope of 72.8 μAmM −1 and the linear correlation coefficient of 0.9972. The detection limit was found to be 1 × 10 −3 M.

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Section: Ft-ir Spectral Studies For Tnt Andsupporting

confidence: 57%

“…On the contrary, after acid treatment with a 0.1 M HCl aqueous solution, only a trace amount of sodium could be detected in this sample by EDX analysis (Figure 2(b)). This has been ascribed to the decrease of Na/Ti ratio of TiO 2 -derived TNT caused by the replacement of Na + with H + during the acid treatment with dil.HCl [40].…”

Section: Synthesis Of Tntmentioning

confidence: 99%

Cobalt Hexacyanoferrate-Decorated Titania Nanotube: CoHCF@TNT Modified GCE as an Electron Transfer Mediator for the Determination of Hydrazine in Water Samples

Sophia

Devi

Pandian

2012

ISRN Analytical Chemistry

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“…12 While TiO 2 nanoparticles can be obtained by using various techniques, hydrothermal method for the preparation of TiO 2 nanoparticle has some intrinsic advantages over other methods in producing TiO 2 nanoparticle of high degree of crystallinity, desired sizes and shapes with homogeneity in composition. 13 It favors a decrease in agglomeration among particles, narrow particle size distribution, phase homogeneity, and controlled particle morphology. 14 In a recent research, it is found that wool fabrics modified with TiO 2 nanoparticles on the surface then subsequently dyed with C. I. Reactive Blue 69 have both improved anti-felting property and better colour fastness to light.…”

Section: ·-mentioning

confidence: 99%

Functional Modification with TiO₂ Nanoparticles and Simultaneously Dyeing of Wool Fibers in a One-Pot Hydrothermal Process

Zhang

Yan

Mao

2014

Ind. Eng. Chem. Res.

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ABSTRACT:Wool fibres are treated with titanate tetrabutyl in the presence of C. I. Reactive Blue 69 dye in one-pot process under hydrothermal conditions. The structural changes of wool fibres before and after treatments as well as the remaining particles are characterized by small-spot Micro X-ray fluorescence (µ-XRF), field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), thermal gravimetric analysis (TGA), and differential scanning calorimetry (DSC) techniques. The properties of percentage of exhaustion, K/S value, colour fastness to light, tension, photocatalytic activity, and diffuse reflectance spectrum (DRS) are also investigated. The experimental results indicate that after treatment with titanate tetrabutyl and C. I. Reactive Blue 69, wool fibres are evenly immobilized with a thin layer of anatase phase TiO 2 nanoparticles with an average grain size of less than 10 nm. The TiO 2 nanocrystals are synthesized and simultaneously grafted onto wool fibres via the C-Ti 4+ , S-Ti 4+ (Ti 2+ ), and N-Ti 4+ bonds. The thermal stability of wool fibres changes a little. The capability of wool fibres to protect against ultraviolet radiation is improved. The tensile properties decrease to some degree. The photocatalytic activity to decolourize methylene blue dye is endowed. A high degree of percentage of exhaustion and K/S value are obtained by adding a certain amount of acetic acid in the precursor solution, which can well be matched with the custom dip dyeing technique.

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“…Hydrothermal synthesis is an environmentally friendly methodology used to synthesize nanostructured materials [9]. Furthermore, the hydrothermal technique is typically done using an autoclave with Teflon liners under controlled temperature and/or pressure in aqueous solutions [10].…”

Section: Introductionmentioning

confidence: 99%

Effect shapes of nanorods, nanowires and nanobelts TiO₂ on the degradation of MB photo catalyst.

Aziz

Sabry

Jarallah

2018

J. Phys.: Conf. Ser.

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Abstract. Titanium dioxide (TiO 2 ) was prepared using hydrothermal method. The crystallite structure was characterized by X-ray diffraction (XRD), which showed the TiO 2 have two phases anatase and rutile. Field-emission scanning electron microscopy (FE-SEM) used to investigate the morphology of TiO 2 , such the images showed that the product have nanorods hexagonal, nanobelts, and nanowires. The different shapes of nanotitanum dioxide on Photocatalyst were studied on degradation of methylene blue dye under UV irradiation , optimum degradation revealed with nanowires shape compare with nanobelts and nanorod shapes.

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Formation Mechanism of TiO₂-Derived Titanate Nanotubes Prepared by the Hydrothermal Process

Cited by 137 publications

References 47 publications

Cobalt Hexacyanoferrate-Decorated Titania Nanotube: CoHCF@TNT Modified GCE as an Electron Transfer Mediator for the Determination of Hydrazine in Water Samples

Cobalt Hexacyanoferrate-Decorated Titania Nanotube: CoHCF@TNT Modified GCE as an Electron Transfer Mediator for the Determination of Hydrazine in Water Samples

Functional Modification with TiO₂ Nanoparticles and Simultaneously Dyeing of Wool Fibers in a One-Pot Hydrothermal Process

Effect shapes of nanorods, nanowires and nanobelts TiO₂ on the degradation of MB photo catalyst.

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Formation Mechanism of TiO2-Derived Titanate Nanotubes Prepared by the Hydrothermal Process

Cited by 137 publications

References 47 publications

Cobalt Hexacyanoferrate-Decorated Titania Nanotube: CoHCF@TNT Modified GCE as an Electron Transfer Mediator for the Determination of Hydrazine in Water Samples

Cobalt Hexacyanoferrate-Decorated Titania Nanotube: CoHCF@TNT Modified GCE as an Electron Transfer Mediator for the Determination of Hydrazine in Water Samples

Functional Modification with TiO2 Nanoparticles and Simultaneously Dyeing of Wool Fibers in a One-Pot Hydrothermal Process

Effect shapes of nanorods, nanowires and nanobelts TiO2 on the degradation of MB photo catalyst.

Contact Info

Product

Resources

About

Formation Mechanism of TiO₂-Derived Titanate Nanotubes Prepared by the Hydrothermal Process

Functional Modification with TiO₂ Nanoparticles and Simultaneously Dyeing of Wool Fibers in a One-Pot Hydrothermal Process

Effect shapes of nanorods, nanowires and nanobelts TiO₂ on the degradation of MB photo catalyst.