Enhanced photocatalytic activity of fluorine doped TiO2 by loaded with Ag for degradation of organic pollutants

Lin, Xingyi; Fei, Rong; Fu, Degang; Chen, Yuan

doi:10.1016/j.powtec.2011.12.037

Cited by 100 publications

(67 citation statements)

References 35 publications

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“…[1][2][3] However, the relatively large bandgap of TiO 2 allows it to absorb UV light only with wavelength less than 387 nm, which considerably limits the utilization of natural solar light. 2,3 To sensitize TiO 2 to absorb visible light, many e®orts have been made, such as metal doping, [3][4][5] nonmetal doping [6][7][8] and so forth. Among these, metal doping has been reported to be an effective way to form a localized state slightly above the valence band in the bandgap, causing band narrowing, which is energetically favorable for the enhancement of visible light absorption.…”

Section: Introductionmentioning

confidence: 99%

Cr-Doped TiO₂ Core–Shell Nanospheres with Enhanced Photocatalytic Activity and Lithium Storage Capacity

2016

NANO

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Cr-doped TiO 2 core-shell nanospheres have been prepared by a facile one-pot hydrothermal process. The as-prepared Cr-TiO 2 nanospheres exhibit not only a high visible light activity, but also an excellent lithium storage capacity. Various characterization methods indicate that Cr 3þ ions are uniformly distributed into the TiO 2 lattice and a doping level emerges in the bandgap of TiO 2 , which leads to a prominent photocatalytic activity. When the Cr-TiO 2 nanospheres are employed as lithium battery electrodes, the high lithium storage capacity of Cr 2 O 3 and the p-type conductivity of TiO 2 due to doping may be bene¯cial to improve the electrochemical performances of these electrodes.

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Section: Introductionmentioning

confidence: 99%

Cr-Doped TiO₂ Core–Shell Nanospheres with Enhanced Photocatalytic Activity and Lithium Storage Capacity

2016

NANO

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“…In the F 1 s spectrum (Fig. 4e), the peak located at 684.0 eV is ascribed to the Na-F bond [23]. No signal of Ti-F (BE ¼ 688.5 eV) is detected, which can be ascribed to the complete removal of the lattice substitutional F atoms during heat treatment at 700 8C [24].…”

Section: Chemical Structure and Compositionmentioning

confidence: 91%

Preparation and characterization of F-modified C-TiO₂and its photocatalytic properties

Deng

Liu

et al. 2015

Phys. Status Solidi A

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Phone/Fax: þ86 28 86291132 F-modified C-doped TiO 2 composites (CF-TiO 2 ) were synthesized via a simple sol-gel method by using NaF as the fluorine source followed by heat treatment at 700 8C in nitrogen atmosphere. The as-prepared CF-TiO 2 composites were characterized via transmission electron microscopy, Xray diffraction, N 2 sorption, X-ray photoelectron spectroscopy, UV-Vis diffuse reflectance spectroscopy, and photoluminescence. Carbon was doped into the anatase titania lattice, and the surface of C-doped TiO 2 were modified by fluorine species. The CF-TiO 2 composite showed excellent photocatalytic activity in degrading methylene blue under sunlight and simulated sunlight irradiation.

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“…Co-doping with metals has also been reported (Lin et al 2012;Yang et al 2012). Ag/F-TiO 2 powders were prepared using a two-step procedure: sol-gel and photoreduction (Lin et al 2012).…”

Section: Fluorine-doped Titanium Dioxide Materialsmentioning

confidence: 97%

“…Ag/F-TiO 2 powders were prepared using a two-step procedure: sol-gel and photoreduction (Lin et al 2012). The co-doped material showed good activity for the degradation of phenol under visible light.…”

Section: Fluorine-doped Titanium Dioxide Materialsmentioning

confidence: 99%

Semiconducting Materials

Hernández-Ramírez¹,

Medina-Ramírez²

2014

Photocatalytic Semiconductors

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Semiconducting materials are of great technological importance in electronics industry and environmental remediation due to their ability to generate charge carriers when activated with certain energy. The favorable combination of electronic structure, light absorption properties, charge transport characteristics, and excited lifetimes of some semiconductors has made possible its application as photocatalyst. Although many publications define the fundamental aspects of the semiconductors from different points of view, in this chapter the definition of photocatalytic semiconductor, its structural characteristics, and the requirements to be used as photocatalyst are briefly recalled. In addition, the classification of photocatalytic materials and the mechanism of the photocatalytic process are also reviewed. The advantages and disadvantages of the most used photocatalyst TiO 2 and the second-generation TiO 2 -based materials are also addressed.

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Enhanced photocatalytic activity of fluorine doped TiO2 by loaded with Ag for degradation of organic pollutants

Cited by 100 publications

References 35 publications

Cr-Doped TiO₂ Core–Shell Nanospheres with Enhanced Photocatalytic Activity and Lithium Storage Capacity

Cr-Doped TiO₂ Core–Shell Nanospheres with Enhanced Photocatalytic Activity and Lithium Storage Capacity

Preparation and characterization of F-modified C-TiO₂and its photocatalytic properties

Semiconducting Materials

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Enhanced photocatalytic activity of fluorine doped TiO2 by loaded with Ag for degradation of organic pollutants

Cited by 100 publications

References 35 publications

Cr-Doped TiO2 Core–Shell Nanospheres with Enhanced Photocatalytic Activity and Lithium Storage Capacity

Cr-Doped TiO2 Core–Shell Nanospheres with Enhanced Photocatalytic Activity and Lithium Storage Capacity

Preparation and characterization of F-modified C-TiO2and its photocatalytic properties

Semiconducting Materials

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Product

Resources

About

Cr-Doped TiO₂ Core–Shell Nanospheres with Enhanced Photocatalytic Activity and Lithium Storage Capacity

Cr-Doped TiO₂ Core–Shell Nanospheres with Enhanced Photocatalytic Activity and Lithium Storage Capacity

Preparation and characterization of F-modified C-TiO₂and its photocatalytic properties