Study of butyraldehyde degradation and by-products formation by using a surface plasma discharge in pilot scale: Process modeling and simulation of relative humidity effect

Costa, Guilherme V. da; Assadi, Aymen Amine; Ghaida, Sara Gharib-Abou; Bouzaza, Abdelkrim; Wolbert, Dominique

doi:10.1016/j.cej.2016.07.099

Cited by 27 publications

(15 citation statements)

References 23 publications

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“…There was an obvious broad absorption band in the range of 200–800 nm, indicating the WS 2 had good light absorption capacity, which would be beneficial to photocatalysis (Figure a). According to Tauc formula

{(α h v)}^{2} = C^{'} (h v - E_{g})

, the extrapolated band gap of WS 2 was about 1.5 eV (Figure b), which was consistent with the band gap of the single‐layer WS 2 nanosheets reported in the literature . Figure c showed photoluminescence spectrum of WS 2 nanosheets, and the maximum emission wavelength was 405 nm using 260 nm as the excitation light with broadening peak shape.…”

Section: Resultssupporting

confidence: 85%

Synthesis of Textured Tungsten Disulfide Nanosheets and their Catalysis for Benzylamine Coupling Reaction

2019

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Tungsten disulfide (WS 2 ) has a graphite-like structure with the properties of strippable and indirect/direct band gap conversion, which makes it have important applications in the fields of optoelectronics, catalysis and lubrication. Here, ultra-thin WS 2 nanosheets with texture on the surface were obtained by colloid synthesis method, and its phase, morphology and valence state were characterized. TEM images displayed that the obtained sample had flower-like morphology composed of "petal" nanosheets with several stripes on the surface. Interestingly, the fabricated WS 2 nanosheets exhibited excellent catalytic performance for the conversion of benzylamine with the yield reaching 97.9 % and excellent catalytic activity still being retained after 5 cycles of catalysis, and the WS 2 nanosheets also had good catalytic activity for coupling reactions of benzylamine homologues to synthesize corresponding imines. Besides, the coupling reaction could be done in natural light without the need for additional light and oxygen atmosphere at certain temperature. Further research showed that in our reaction system, the benzylamine oxidative coupling reaction was a photothermal co-catalytic process with thermal catalysis being dominant role and photocatalysis further improving the yield.

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{(α h v)}^{2} = C^{'} (h v - E_{g})

Section: Resultssupporting

confidence: 85%

Synthesis of Textured Tungsten Disulfide Nanosheets and their Catalysis for Benzylamine Coupling Reaction

2019

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“…DBD plasma was created by applying high voltage power via a signal generator (BFi OPTILAS (SRS) reference DS 335/1). The applied voltage, as a sinusoidal waveform of 10V, was then amplified to 30 kV by an amplifier (TREK 30A/40) [20,[22][23][24][25]. This amplifier is connected to the reactor outer/inner electrodes, in a copper and Al grid form for the outer and inner electrodes, respectively.…”

Section: Methodsmentioning

confidence: 99%

Integrated process for the removal of indoor VOCs from food industry manufacturing: Elimination of Butane-2,3-dione and Heptan-2-one by cold plasma-photocatalysis combination

Saoud

Assadi

Kane

et al. 2020

Journal of Photochemistry and Photobiology A: Chemistry

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“…The polluted air flow was generated continuously by means of a syringe pump system (Kd Scientific Model 100, USA) in order to obtain a stable VOC concentration during the experiment (from 5 to 20 mg.m -3 ). To create a VOCs/air mixture, two similar injection systems are used for each pollutant [29][30][31]. A static mixer at upstream ensures a proper mixing of air .…”

Section: Polluted-contaminated Air Generationmentioning

confidence: 99%

Innovative photocatalytic reactor for the degradation of VOCs and microorganism under simulated indoor air conditions: Cu-Ag/TiO2-based optical fibers at a pilot scale

Saoud

Kane

Cann

et al. 2021

Chemical Engineering Journal

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Study of butyraldehyde degradation and by-products formation by using a surface plasma discharge in pilot scale: Process modeling and simulation of relative humidity effect

Cited by 27 publications

References 23 publications

Synthesis of Textured Tungsten Disulfide Nanosheets and their Catalysis for Benzylamine Coupling Reaction

Synthesis of Textured Tungsten Disulfide Nanosheets and their Catalysis for Benzylamine Coupling Reaction

Integrated process for the removal of indoor VOCs from food industry manufacturing: Elimination of Butane-2,3-dione and Heptan-2-one by cold plasma-photocatalysis combination

Innovative photocatalytic reactor for the degradation of VOCs and microorganism under simulated indoor air conditions: Cu-Ag/TiO2-based optical fibers at a pilot scale

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