The Photocatalytic Property of Nitrogen-Doped TiO<sub>2</sub>Nanoball Film

Wang, Haiying; Hu, Yanchun

doi:10.1155/2013/179427

Cited by 14 publications

(8 citation statements)

References 44 publications

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“…The red shift is thought to be C, N, and S doping to TiO 2 matrix, narrowing the band gap energy of the TiO 2 due to the occurrence of the hybridized states located in the band gap [31] or tetracyine as photosensitizer. The photoluminescence (PL) is widely used to study the recombination of photo- Journal of Nanomaterials induced electron/hole pairs.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of C-N-S-Tridoped TiO₂ from Vietnam Ilmenite Ore and Its Visible Light-Driven-Photocatalytic Activity for Tetracyline Degradation

Lan

Anh

et al. 2020

Journal of Nanomaterials

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In this study, C-N-S-tridoped TiO 2 composite was fabricated from TiO 2 prepared from ilmenite ore and thiourea by means of hydrothermal method. The obtained material was characterized by X-ray diffraction, Raman scattering spectroscopy, UV-Vis diffuse reflectance spectroscopy, nitrogen adsorption-desorption isotherms, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). It was found that C-N-S-tridoped TiO 2 material has a large specific surface area, showing good photocatalytic activity on the degradation of antibiotic tetracycline in visible light region. The study on the mechanism of tetracycline photodegradation using the liquid chromatography with mass spectrometry was performed. It was found that tetracycline has been degraded over C-N-S-tridoped TiO 2 catalyst into many different intermediates which can eventually be converted into CO 2 and H 2 O. The kinetics of photocatalytic decomposition of tetracycline were investigated. In addition, the obtained material could catalyze well the degradation of other antibiotics (ciprofloxacin and chloramphenicol) and dyes (rhodamine-B, methylene blue, and organe red). The catalyst was stable after five recycles with slight loss of catalytic activity, which indicates great potential for practical application of C-N-S-tridoped TiO 2 catalyst in treatment of wastewater containing tetracycline in particular or antibiotics in general.

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Section: Resultsmentioning

confidence: 99%

Synthesis of C-N-S-Tridoped TiO₂ from Vietnam Ilmenite Ore and Its Visible Light-Driven-Photocatalytic Activity for Tetracyline Degradation

Lan

Anh

et al. 2020

Journal of Nanomaterials

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“…N 1s XPS peaks at a binding energy in the range of ~396-400 eV showed different oxidative states of the N species. By the combination of the DFT calculations [31], it was identified that the N 1s XPS peaks at ~396-397 eV are due to the substitution of N with the lattice O of TiO2 [13,34], while those at ~399-400 eV are due to the interstitial N in the form of NOx or NHx [13,31,35,36]. [34], and (b) N-doped TiO2 prepared by the sol-gel method [36].…”

Section: Xps Spectramentioning

confidence: 99%

“…XPS [I] and UV-vis absorption spectra [II] of (a) N-doped TiO 2 nanoball film[34], and (b) N-doped TiO 2 prepared by the sol-gel method[36].…”

mentioning

confidence: 99%

Titanium-Dioxide-Based Visible-Light-Sensitive Photocatalysis: Mechanistic Insight and Applications

Higashimoto

2019

Catalysts

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Titanium dioxide (TiO2) is one of the most practical and prevalent photo-functional materials. Many researchers have endeavored to design several types of visible-light-responsive photocatalysts. In particular, TiO2-based photocatalysts operating under visible light should be urgently designed and developed, in order to take advantage of the unlimited solar light available. Herein, we review recent advances of TiO2-based visible-light-sensitive photocatalysts, classified by the origins of charge separation photo-induced in (1) bulk impurity (N-doping), (2) hetero-junction of metal (Au NPs), and (3) interfacial surface complexes (ISC) and their related photocatalysts. These photocatalysts have demonstrated useful applications, such as photocatalytic mineralization of toxic agents in the polluted atmosphere and water, photocatalytic organic synthesis, and artificial photosynthesis. We wish to provide comprehension and enlightenment of modification strategies and mechanistic insight, and to inspire future work.

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“…Moreover, the samples TiNO/10 and TiO/20 present a preferential texture along the <004> plane. On the other hand, the peaks at 37.80°, 43.30°, and 62.80° visible in the diffractogram of the TiO 2 film deposited in CH 4 (TiC/5 film) could be related to <004>, <002>, and <202> planes of TiO phase indicating the formation of a substoichiometric compound [53] or even Ti crystalline phase [29,54,55]. It is obvious that pure methane used in PLD prevents anatase formation providing oxygen atoms deficiency.…”

Section: Nitrogen-doped Tio 2 Filmsmentioning

confidence: 99%

Pulsed Laser-Deposited TiO2-based Films: Synthesis, Electronic Structure and Photocatalytic Activity

Linnik¹,

Chorna²,

Смирнова³

et al. 2016

Semiconductor Photocatalysis - Materials, Mechanisms and Applications

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Abstract"ctive under visible light, photocatalysts based on doped titania were obtained via pulsed laser deposition PLD method. To find out the crystalline structure, optical properties, and electronic structure, the following techniques such as X-ray diffraction, electronic spectroscopy, electrical conductivity measurements, and X-ray photoelectron spectroscopy XPS are used. Photocatalytic activity is monitored by applying the photoreduction of dichromate ions under UV and visible light. The influence of zirconium ions and its content and synthesis conditions on the efficiency of nitrogen incorporation into titania structure that, in turn, determines the electronic structure and photocatalytic ability of the semiconductive materials are discussed. " substitutional nitrogen Ti N rather than an interstitial one Ti O N is mainly responsible for the observed photoactivity. It is pointed that substitutional nitrogen is responsible for bandgap narrowing or formation of intragap localized states within semiconductor bandgap. The bandgap energy values are sharply decreased, while the relative intensity of substitutional nitrogen XPS peaks is increased. Pulsed laser synthesis of TiO films in N /CH atmosphere not only leads to nitrogen incorporation but also to the formation of defects including oxygen vacancies and Ti + states which are all contributing to light absorption. "n appropriate ratio of gas mixture, optimum zirconia content, suitable pressure, and temperature during synthesis was found for the synthesis of highly active semiconductive films. The highest photocatalytic conversion yields are obtained for nitrogen-doped % ZrO /TiO synthesized in N CH = at Pa and at °C under both UV and visible light.

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The Photocatalytic Property of Nitrogen-Doped TiO₂Nanoball Film

Cited by 14 publications

References 44 publications

Synthesis of C-N-S-Tridoped TiO₂ from Vietnam Ilmenite Ore and Its Visible Light-Driven-Photocatalytic Activity for Tetracyline Degradation

Synthesis of C-N-S-Tridoped TiO₂ from Vietnam Ilmenite Ore and Its Visible Light-Driven-Photocatalytic Activity for Tetracyline Degradation

Titanium-Dioxide-Based Visible-Light-Sensitive Photocatalysis: Mechanistic Insight and Applications

Pulsed Laser-Deposited TiO2-based Films: Synthesis, Electronic Structure and Photocatalytic Activity

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The Photocatalytic Property of Nitrogen-Doped TiO2Nanoball Film

Cited by 14 publications

References 44 publications

Synthesis of C-N-S-Tridoped TiO2 from Vietnam Ilmenite Ore and Its Visible Light-Driven-Photocatalytic Activity for Tetracyline Degradation

Synthesis of C-N-S-Tridoped TiO2 from Vietnam Ilmenite Ore and Its Visible Light-Driven-Photocatalytic Activity for Tetracyline Degradation

Titanium-Dioxide-Based Visible-Light-Sensitive Photocatalysis: Mechanistic Insight and Applications

Pulsed Laser-Deposited TiO2-based Films: Synthesis, Electronic Structure and Photocatalytic Activity

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Product

Resources

About

The Photocatalytic Property of Nitrogen-Doped TiO₂Nanoball Film

Synthesis of C-N-S-Tridoped TiO₂ from Vietnam Ilmenite Ore and Its Visible Light-Driven-Photocatalytic Activity for Tetracyline Degradation

Synthesis of C-N-S-Tridoped TiO₂ from Vietnam Ilmenite Ore and Its Visible Light-Driven-Photocatalytic Activity for Tetracyline Degradation