Template-free formation of vertically oriented TiO2 nanorods with uniform distribution for organics-sensing application

Mu, Qinghui; Li, Yaogang; Zhang, Qinghong; Wang, Hongzhi

doi:10.1016/j.jhazmat.2011.01.125

Cited by 28 publications

(9 citation statements)

References 46 publications

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“…Wu and Qi reported the synthesis of titania nanorods with the help of precursors [27]. Recent studies have shown that it is possible to detect some organic molecules by using the photocatalytic properties of nanostructured titania, synthesized in hydrogen peroxide [28,29]. All these findings have revealed the possibility of fabricating biocompatible titania-based organic sensors in near future.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Nanoporous TiO2 with the Use of Diluted Hydrogen Peroxide Solution and Its Application in Gas Sensing

et al. 2019

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The chemical routes of metal oxidation in presence of hydrogen peroxide solutions are tailor-made for the synthesis of biocompatible metal oxide surfaces with clean intermediate and end products, such as oxides, hydroxides, hydrogen and water. The hydrolysis of titanium in hydrogen peroxide solutions is particularly interesting for medical applications, forming micro- and nanoscale titania surfaces. In this paper, the content of the hydrolysis solution is revised, allowing the fabrication of gas sensor devices based on nanoporous titania. Nanopore and microcrack formations were discussed in detail by monitoring the structural changes on the thin film surface with field-emission scanning electron microscopy (FE-SEM). A stable rutile crystalline phase was detected by glancing incidence X-ray diffraction (GI-XRD) measurement after repetitive hydrothermal processes. Electrical conductance measurements were carried out at high temperatures (400–600 °C) under humid airflow (40% RH@20 °C) with the injection of various concentrations of a wide set of test compounds (C2H3N, CO, H2, NO2, C2H6O), to observe the sensing capabilities of the material. Furthermore, the humidity effects on the sensing properties toward H2, CO, and C2H6O have been discussed.

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Section: Introductionmentioning

confidence: 99%

Synthesis of Nanoporous TiO2 with the Use of Diluted Hydrogen Peroxide Solution and Its Application in Gas Sensing

et al. 2019

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“…[57][58][59] In general, sensing materials with low-dimensional structures should have a large surface area, which could not only provide more adsorption sites for the oxygen species and the tested gases but also facilitate the interaction between the oxide surfaces and gas molecules. 60 This induces a more significant degree of electron transfer, and hence more pronounced output of electric signal, which is detected by the electric circuit.…”

mentioning

confidence: 99%

Microwave-assisted synthesis of SnO2 nanorods for oxygen gas sensing at room temperature

Azam¹,

Habib²,

Salah³

2013

IJN

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“…Moreover, compared with the nanosized powder photocatalysts, the prepared TiO 2 is easier to be separated from aqueous solutions after PCO process due to its long structure, and it also possesses higher photocatalytic activity. In addition, the photocatalytic activity of TiO 2 nanorods can be further improved via a thermal treatment because of the enhanced crystallization [27].…”

Section: Tio 2 Nanorodsmentioning

confidence: 99%

One-Dimensional Nanostructured TiO₂for Photocatalytic Degradation of Organic Pollutants in Wastewater

Feng¹,

Feng²,

Yan³

et al. 2014

International Journal of Photoenergy

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The present paper reviews the progress in the synthesis of one-dimensional (1D) TiO2nanostructures and their environmental applications in the removal of organic pollutants. According to the shape, 1D TiO2nanostructures can be divided into nanorods, nanotubes, nanowires/nanofibers, and nanobelts. Each of them can be synthesized via different technologies, such as sol-gel template method, chemical vapor deposition, and hydrothermal method. These methods are discussed in this paper, and the recent development of the synthesis technologies is also presented. Furthermore, the organic pollutants, degradation using the synthesized 1D TiO2nanostructures is studied as an important application of photocatalytic oxidation (PCO). The 1D nanostructured TiO2exhibited excellent photocatalytic activity in a PCO process, and the mechanism of photocatalytic degradation of organic pollutants is also discussed. Moreover, the modification of 1D TiO2nanostructures using metal ions, metal oxide, or inorganic element can further enhance the photocatalytic activity of the photocatalyst. This phenomenon can be explained by the suppression of e−-h+pairs recombination rate, increased specific surface area, and reduction of band gap. In addition, 1D nanostructured TiO2can be further constructed as a film or membrane, which may extend its practical applications.

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Template-free formation of vertically oriented TiO2 nanorods with uniform distribution for organics-sensing application

Cited by 28 publications

References 46 publications

Synthesis of Nanoporous TiO2 with the Use of Diluted Hydrogen Peroxide Solution and Its Application in Gas Sensing

Synthesis of Nanoporous TiO2 with the Use of Diluted Hydrogen Peroxide Solution and Its Application in Gas Sensing

Microwave-assisted synthesis of SnO2 nanorods for oxygen gas sensing at room temperature

One-Dimensional Nanostructured TiO₂for Photocatalytic Degradation of Organic Pollutants in Wastewater

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Template-free formation of vertically oriented TiO2 nanorods with uniform distribution for organics-sensing application

Cited by 28 publications

References 46 publications

Synthesis of Nanoporous TiO2 with the Use of Diluted Hydrogen Peroxide Solution and Its Application in Gas Sensing

Synthesis of Nanoporous TiO2 with the Use of Diluted Hydrogen Peroxide Solution and Its Application in Gas Sensing

Microwave-assisted synthesis of SnO2 nanorods for oxygen gas sensing at room temperature

One-Dimensional Nanostructured TiO2for Photocatalytic Degradation of Organic Pollutants in Wastewater

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One-Dimensional Nanostructured TiO₂for Photocatalytic Degradation of Organic Pollutants in Wastewater