Solar light-activated photocatalytic degradation of gas phase diethylsulfide on WO3-modified TiO2 nanotubes

Grandcolas, Mathieu; Cottineau, Thomas; Louvet, Alain; Keller, Nicolas; Keller, Valérie

doi:10.1016/j.apcatb.2013.02.041

Cited by 55 publications

(49 citation statements)

References 64 publications

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“…6C can be fitted well with doublet peaks cantered at 529.8 eV and 532.8 eV. The former is indexed to O Ti bonds in TiO 2 network [44] and the later positioned at 532.8 eV is assigned to Si O Si bonds in SBA-15 matrix [45]. No peaks originating from O W bonds are undetectable, which is mainly due to the low content of tungsten oxide species.…”

Section: Resultsmentioning

confidence: 78%

Enhanced visible-light-driven photocatalytic performance of mesoporous W-Ti-SBA-15 prepared through a facile hydrothermal route

Chang

Wang

Luo

et al. 2016

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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h i g h l i g h t s• A series of tungsten-titaniumcocontained SBA15 composites were fabricated by a simple synthetic route.• These samples showed enhanced catalytic performance in comparison to those comprising bare tungsten or titanium component.• The enhancement of photocatalytic behavior under visible-light irradiation was discussed. t r a c tA facile and one-step hydrothermal procedure was adopted to fabricate a series of W-Ti-SBA15 composites (WTS). These as-prepared composites were systematically characterized by a collection of analytic and spectroscopic techniques. It was found that dual phases of titanium and tungsten species coexisted in mesoporous structures of p6 mm hexagonal symmetry. In addition, these composites were visible-light responsive and exhibited enhanced photocatalytic capability toward degradation of Rhodamine B (RhB) and 2,4-dichlorophenol (2,4-DCP) upon visible-light irradiation in comparison to samples containing single component of titanium or tungsten species. Specifically, the best candidate, sample 8%WTS0.7, had the largest apparent reaction rate constant that was nearly 1.2, 2.1, 2.2, and 5.7 times as high as those of 8%WS, TS0.7, WO 3 /TiO 2 , and N-TiO 2 , respectively. The enhancement of photocatalytic performance was mainly attributed to the well-matched band structures of both components and strengthened visiblelight adsorption ability, originating from the combination of titania with highly acidic WO 3 in SBA15 matrix with large specific surface areas. Active radical species were detected by trapping experiments and a possible photocatalytic mechanism was thus proposed.

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Section: Resultsmentioning

confidence: 78%

Enhanced visible-light-driven photocatalytic performance of mesoporous W-Ti-SBA-15 prepared through a facile hydrothermal route

Chang

Wang

Luo

et al. 2016

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…In addition, DMDS is produced through CH3S• radical self-recombination in the direct splitting of the C-S bond [43,44]. Further oxidation by •OH radical can result in the formation of SO2 [45]. [38,44].…”

Section: Photodegradation Products and Byproductsmentioning

confidence: 99%

The visible light-driven photodegradation of dimethyl sulfide on S-doped TiO 2 : Characterization, kinetics, and reaction pathways

Lin

Hsueh

Chang

et al. 2016

Applied Catalysis B: Environmental

114

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“…Hydrothermal nanotubes are mostly modified by surface adsorption or ion exchange at their surfaces [406][407][408][409][410] . Nanotube arrays (and other type of nanotubes that consist of several nm thick TiO 2 walls) can be additionally modified by techniques used for nanopowders.…”

Section: Modification Of Tio 2 Nanotubesmentioning

confidence: 99%

One-Dimensional Titanium Dioxide Nanomaterials: Nanotubes

2014

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Solar light-activated photocatalytic degradation of gas phase diethylsulfide on WO3-modified TiO2 nanotubes

Cited by 55 publications

References 64 publications

Enhanced visible-light-driven photocatalytic performance of mesoporous W-Ti-SBA-15 prepared through a facile hydrothermal route

Enhanced visible-light-driven photocatalytic performance of mesoporous W-Ti-SBA-15 prepared through a facile hydrothermal route

The visible light-driven photodegradation of dimethyl sulfide on S-doped TiO 2 : Characterization, kinetics, and reaction pathways

One-Dimensional Titanium Dioxide Nanomaterials: Nanotubes

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