Synthesis of fluorine-doped titania-coated activated carbon under low temperature with high photocatalytic activity under visible light

Xu, Jun; Ao, Yanhui; Fu, Degang; Chen, Yuan

doi:10.1016/j.jpcs.2008.03.017

Cited by 49 publications

(18 citation statements)

References 26 publications

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“…Any F-doping should not reduce the band gap since the F 2p-bands are far below the vbm as shown in Figure 4(e). This is borne out by several experimental investigations that show essentially no change in the optical adsorption edge upon F-doping [152][153][154][155]. As shown in Table 4, F-doping also has no appreciable effect on the crystal structure, a result that is also consistent with some experiments [154], but it has been proposed that enhancements in photocatalytic activity of titania upon Fdoping are due to improved crystallinity of the material [156].…”

Section: Halogen Dopingsupporting

confidence: 76%

Doping of TiO₂ Polymorphs for Altered Optical and Photocatalytic Properties

Nie

Zhuo

Maeng

et al. 2009

International Journal of Photoenergy

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This paper reviews recent investigations of the influence of dopants on the optical properties ofTiO2polymorphs. The common undoped polymorphs ofTiO2are discussed and compared. The results of recent doping efforts are tabulated, and discussed in the context of doping by elements of the same chemical group. Dopant effects on the band gap and photocatalytic activity are interpreted with reference to a simple qualitative picture of theTiO2electronic structure, which is supported with first-principles calculations.

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Section: Halogen Dopingsupporting

confidence: 76%

Doping of TiO₂ Polymorphs for Altered Optical and Photocatalytic Properties

Nie

Zhuo

Maeng

et al. 2009

International Journal of Photoenergy

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“…On the other hand, fluorine was reported that it has no effect on the changes of band gap width [80]. Xu et al [81] reported that the fluorine-doped TiO 2 prepared by hydrolysis process can improve the crystallinity as well as inhibit the grain growth of photocatalyst. Instead of this, fluorine doping can enhance the formation of hydroxyl groups on the titania surface, and thus, increase the phenol photodegradation rate.…”

Section: Effect Of Metalloid and Halogen Dopingmentioning

confidence: 99%

An Overview on the Photocatalytic Activity of Nano-Doped-TiO2 in the Degradation of Organic Pollutants

Tan

Wong

Mohamed

2011

ISRN Materials Science

112

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This paper aims to review and summarize the recent works on the photocatalytic degradation of various organic pollutants in the presence of nano-doped-TiO 2 photocatalysts. In this regard, three main aspects are examined: (a) the presence of various dopants (metal dopants, nonmetal dopants, halogen dopants, metalloid dopants, and codopants) in the formation of nano-doped-TiO 2 photocatalysts, (b) the effect of the presence of dopants on the photocatalytic degradation of organic pollutants, and (c) the effects of various operating parameters on the photocatalytic degradation of organic pollutants in the presence of nano-doped-TiO 2 photocatalysts. Reports resulted suggest that the formation of a high percentage of the anatase phase, small crystallite size, and high specific surface area of the nano-doped-TiO 2 photocatalysts depends on the presence of various dopants in the photocatalysts. The majority of the dopants have the potential to improve the photocatalytic efficiency of nano-doped-TiO 2 in the degradation of organic pollutants. The photocatalytic degradation of organic compounds depends on the calcination temperature of the prepared doped TiO 2 , initial reactant concentration, dosage of doped TiO 2 , and dopant doping concentration.

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“…The modification of TiO 2 on activated carbon showed high adsorption capacity and highly improved photocatalytic efficiency since the activated carbon can help to enrich the local pollutant concentration of the catalyst and subsequently promote the pollutant transfer process. Moreover, the synergistic effect between adsorption and photocatalytic decomposition is very important in the carbon‐based TiO 2 composite . Matos et al confirmed the synergistic effect of activated carbon (surface area: 775 m 2 g −1 )‐based TiO 2 .…”

Section: Simultaneous Adsorption and Degradationmentioning

confidence: 99%

Micro–Nanocomposites in Environmental Management

et al. 2016

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Water pollution, a worldwide issue for the human society, has raised global concerns on environmental sustainability, calling for high-performance materials for effective treatments. Since the traditional techniques have inherent limitations in treatment speed and efficiency, nanotechnology is subsequently used as an environmental technology to remove pollutants through a rapid adsorption and degradation process. Therefore, here, various adsorbent and photodegradation composite materials leading to effective water remediation are summarized and predicted. Notably, recent advances in simultaneous adsorption and photodegradation micro-nanocomposites are outlined. Such materials can not only completely adsorb and remove contaminants, but the micro-nanocomposites can also be directly reused without further treatment. Finally, the future development of this unique system is discussed.

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Synthesis of fluorine-doped titania-coated activated carbon under low temperature with high photocatalytic activity under visible light

Cited by 49 publications

References 26 publications

Doping of TiO₂ Polymorphs for Altered Optical and Photocatalytic Properties

Doping of TiO₂ Polymorphs for Altered Optical and Photocatalytic Properties

An Overview on the Photocatalytic Activity of Nano-Doped-TiO2 in the Degradation of Organic Pollutants

Micro–Nanocomposites in Environmental Management

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Synthesis of fluorine-doped titania-coated activated carbon under low temperature with high photocatalytic activity under visible light

Cited by 49 publications

References 26 publications

Doping of TiO2 Polymorphs for Altered Optical and Photocatalytic Properties

Doping of TiO2 Polymorphs for Altered Optical and Photocatalytic Properties

An Overview on the Photocatalytic Activity of Nano-Doped-TiO2 in the Degradation of Organic Pollutants

Micro–Nanocomposites in Environmental Management

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Product

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Doping of TiO₂ Polymorphs for Altered Optical and Photocatalytic Properties

Doping of TiO₂ Polymorphs for Altered Optical and Photocatalytic Properties