Photocatalytic Degradation of Triethylamine on Titanium Oxide Thin Films

Huang, Aimin; Cao, Lixin; Chen, Jie; Spiess, Franz Josef; Suib, Steven L.; Obee, Timothy N.; Hay, Steve O.; Freihaut, James D.

doi:10.1006/jcat.1999.2617

Cited by 56 publications

(32 citation statements)

References 26 publications

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“…This can be ascribed to the bigger surface area of the doped samples, which have bigger adsorption ability to the smaller molecules compared to pure TiO 2 . And as a result most of the active positions are blocked [14]. Table 3 shows the degradation results investigated by gas chromatography and Fig.…”

Section: Resultsmentioning

confidence: 97%

Preparation and photocatalytic properties of Zr4+-doped TiO2 nanocrystals

Wang

Liu

Lü

et al. 2004

Journal of Molecular Catalysis A: Chemical

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Section: Resultsmentioning

confidence: 97%

Preparation and photocatalytic properties of Zr4+-doped TiO2 nanocrystals

Wang

Liu

Lü

et al. 2004

Journal of Molecular Catalysis A: Chemical

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“…Published work indicate that heterogeneous photocatalytic process involves at least five separate reaction steps [19] and include (1) diffusion of reactants to the surface of semiconductor, (2) adsorption of reactants onto the surface of semiconductor, (3) reaction on the surface of semiconductor, (4) desorption of products from the surface of the semiconductor and (5) diffusion of products from the surface of the semiconductor. There are two routes through which OH radicals can be formed-the reaction of the valence-band holes with either adsorbed H 2 O or with the surface OH groups on the TiO 2 particle.…”

Section: Mechanism Of Semiconductor Catalysismentioning

confidence: 99%

Heterogeneous Photocatalysis: Recent Advances and Applications

2013

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Semiconductor heterogeneous photocatalysis, the subject of this review, is a versatile, low-cost and environmentally benign treatment technology for a host of pollutants. These may be of biological, organic and inorganic in origin within water and air. The efficient and successful application of photocatalysis demands that the pollutant, the catalyst and source of illumination are in close proximity or contact with each other. The ability of advanced oxidation technology to remove low levels of persistent organic pollutants as well as microorganisms in water has been widely demonstrated and, progressively, the technology is now being commercialized in many areas of the world including developing nations. This review considers recent developments in the research and application of heterogeneous semiconductor photocatalysis for the treatment of low-level concentrations of pollutants in water and air using titanium dioxide as a "model" semiconductor. The review considers charge transport characteristics on the semiconductor surface, photocatalyst reactor design and organic degradation mechanistic pathways. The effects of photoreactor operating parameters on the photocatalytic process are discussed in addition to mineralization and disinfection kinetics.

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“…Nitrogen-containing phenols are also of great concern not only because they cause severe health problems but also acts as poisons for catalysts [15]. San et al [16], studied the photocatalytic degradation of 4-nitrophenol in aqueous TiO 2 suspensions.…”

Section: Introductionmentioning

confidence: 99%