Photocatalytic oxidation of propene at low concentration

Lillo-Ródenas, M.A.; Bouazza, N.; Berenguer-Murcia, Ángel; Linares-Salinas, J.J.; Soto, Pablo C.; Linares-Solano, Á.

doi:10.1016/j.apcatb.2006.10.004

Cited by 31 publications

(32 citation statements)

References 36 publications

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“…Titanium (IV) oxide (TiO 2 ) has attracted much attention mainly in expection of being applied to environmental photocatalytic processes [1][2][3][4][5] . For the realization of its application, development of highly active TiO 2 photocatalyst is desired.…”

mentioning

confidence: 99%

Photocatalytic oxidation of gaseous benzene over nanosized TiO2 prepared by solvothermal method

Zhao

et al. 2007

Chin. Sci. Bull.

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Nanosized TiO 2 particles were prepared by solvothermal method using tetrabutyl titanate as precursor, ethanol and water as solvents, and a facile immobilization method of nanosized TiO 2 particles on woven glass fabric was developed. The samples obtained under various preparation conditions were characterized by means of thermo gravimetric analysis (TG) and differential scanning calorimetry (DSC), X-ray diffraction (XRD), transmission electron microscopy (TEM), high resolution-transmission electron microscopy (HR-TEM), and Brunauer-Emmett-Teller (BET). The results show that the cube-shape of TiO 2 prepared by solvothermal method has good crystallinity of (101) surface, higher thermal stability and large specific surface area. Scanning electron microscopy (SEM) images confirmed that the immobilized TiO 2 film was uniformly distributed and clung to the substrate firmly. The photocatalytic activity of the catalysts was tested using photocatalytic oxidation of gaseous benzene. The results show that the TiO 2 calcined after solvothermal treatment suffers from lower specific surface area, and hence decreases its photocatalytic activity. The photocatalytic activities of the TiO 2 by solvothermal treatment with or without calcination in degradation 400 mg/m 3 benzene are 3.7 and 4.1 times as high as catalyst without solvothermal treatment, respectively.

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confidence: 99%

Photocatalytic oxidation of gaseous benzene over nanosized TiO2 prepared by solvothermal method

Zhao

et al. 2007

Chin. Sci. Bull.

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“…The photocatalytic performance of the P25 incorporated in the microfluidic chips (microreactor) or in a conventional reactor, prepared for comparison purposes, was studied using two different experimental systems designed in our laboratory [18,40].…”

Section: Catalytic Testsmentioning

confidence: 99%

“…The total reactor height is 50 mm and the catalytic bed is placed in a section of the reactor with 20 mm of diameter. This system uses a commercial UV lamp (Philips) with a power of 1 W with its radiation peak appearing at 365 nm [40]. This lamp is used for the conventional reactor and the irradiation using in this configuration is also unaffected due to the proximity between the light source and the reactor (1 cm).…”

Section: Catalytic Testsmentioning

confidence: 99%

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Photo-microfluidic chip reactors for propene complete oxidation with TiO2 photocalyst using UV-LED light

Fernández-Català

Garrigós-Pastor

Berenguer-Murcia

et al. 2019

Journal of Environmental Chemical Engineering

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In this study, we present a photo-microreactor illuminated with a low power LED light as a highly efficient system to achieve the total oxidation of propene using a TiO2 photocatalyst. This abatement system (photo-microreactor) consists in an immobilized benchmark photocatalyst (TiO2, P25) inside a commercial glass microchannel chip (UV transparent microfluidic chips, internal volume of 9.5 μL) using a packed-bed configuration without any previous treatment. The P25 inside the microreactor shows a nearly homogenous filling of the particles resulting in a low pressure drop throughout the system. In terms of propene abatement (Catalytic activity), the P25 inside the commercial microreactor reaches total propene conversion (100%) under flow conditions at low concentrations (100 ppmv) due to shorter diffusion distances, large surface-to-volume ratios, efficient heat transfer , and the improved light penetration inside the microchannel.Moreover, the prepared microreactor uses a low consumption power (LED), low residence time and presents a relatively low pressure drop making this device (P25 inside a commercial microreactor) very interesting for the abatement of volatile organic compounds at low concentration for example at indoor ambient due to its small size (45 x 15 mm).

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“…The remaining peeks are due to the rutile structure. The integrated intensities of the strongest peak of both anatase (I a,101 at 25.4˚) and rutile (I r,110 27.5˚) were used to calculate the percentage of rutile and anatase according to the formulas: W r (%) = I r /(0.8844xI a + I r ) × 100 and W a (%) = 100 − W r (%) [65]. The values indicate a composition of 78.8 % anatase and 21.2% rutile.…”

Section: Characterization Of P25mentioning

confidence: 99%

Anatase Titanium Dioxide Coated Single Wall Carbon Nanotubes Manufactured by Sonochemical-Hydrothermal Technique

Clemens¹,

Wei²,

Wilson³

et al. 2013

OJCM

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A novel, cost effective, sonochemical-hydrothermal technique was used for the deposition of nanosized anatase titanium dioxide (TiO 2 ) onto single wall carbon nanotubes (SWCNTs). This technique is described and the characterization of the synthesized TiO 2 -SWCNTs is reported. The characterization techniques employed include scanning electron microscopy (SEM), Raman spectroscopy, and X-ray diffraction (XRD). From the characterization the size and morphology of the synthesized TiO 2 nanoparticles (deposited on the SWCNTs) are reported. Furthermore, it is demonstrated that the created TiO 2 nanoparticles are chemically attached to the SWCNTs. Also, an important correlation between calculated TiO 2 crystal size and the red shifts in the lowest Raman TiO 2 (E. g. ) predominate peak is reported. The synthesized TiO 2 -SWCNTs have potential for large scale production and application in a variety of new technologies such as clean energy power generation devices, electrical storage devices, photocatalysts, and sensors.

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Photocatalytic oxidation of propene at low concentration

Cited by 31 publications

References 36 publications

Photocatalytic oxidation of gaseous benzene over nanosized TiO2 prepared by solvothermal method

Photocatalytic oxidation of gaseous benzene over nanosized TiO2 prepared by solvothermal method

Photo-microfluidic chip reactors for propene complete oxidation with TiO2 photocalyst using UV-LED light

Anatase Titanium Dioxide Coated Single Wall Carbon Nanotubes Manufactured by Sonochemical-Hydrothermal Technique

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