Photo-oxidation of gas-phase cyclohexane species over nanostructured TiO2 fabricated by different strategies

Zheng, Chunli; Li, Xinyong; Zhao, Qidong; Qu, Zhenping; Quan, Xie

doi:10.1016/j.seppur.2009.03.043

Cited by 11 publications

(3 citation statements)

References 22 publications

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“…To compare the photocatalytic performance of ZnAl 2 O 4 samples with anatase phase TiO 2 nanoballs and Degussa TiO 2 samples, in situ FT-IR spectra were collected with the Fourier Transform Infrared Spectrophotometer (BRUKER VERTEX 70 Optics) and a self-made in situ IR quartz photoreaction cell [38]. The cell had a path length of 10 cm and tubular diameter of 4 cm.…”

Section: In Situ Ft-ir Studies On the Photocatalytic Performance Of Zmentioning

confidence: 99%

Photocatalytic degradation of gaseous toluene over ZnAl2O4 prepared by different methods: A comparative study

Zhu

Zhao

et al. 2011

Journal of Hazardous Materials

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122

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Section: In Situ Ft-ir Studies On the Photocatalytic Performance Of Zmentioning

confidence: 99%

Photocatalytic degradation of gaseous toluene over ZnAl2O4 prepared by different methods: A comparative study

Zhu

Zhao

et al. 2011

Journal of Hazardous Materials

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122

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“…1260 and 1730 cm −1 with high intensity, which can be assigned to the C-C key stretching vibration and aldehyde group, respectively [ 79 , 81 ]. In addition, increased intensity of FT-IR signals were also observed at 2860 and 2930 cm −1 , which can be indexed to the cyclohexane bands [ 82 ]. These results are in good agreement with the benzaldehyde ( m / z = 106) and dimethylcyclohexane ( m / z = 112) products recorded by GC-MS ( Table 3 ) [ 83 ].…”

Section: Resultsmentioning

confidence: 99%

Carbon Quantum Dots Bridged TiO2/CdIn2S4 toward Photocatalytic Upgrading of Polycyclic Aromatic Hydrocarbons to Benzaldehyde

et al. 2022

Molecules

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Conversion of hazardous compounds to value-added chemicals using clean energy possesses massive industrial interest. This applies especially to the hazardous compounds that are frequently released in daily life. In this work, a S-scheme photocatalyst is optimized by rational loading of carbon quantum dots (CQDs) during the synthetic process. As a bridge, the presence of CQDs between TiO2 and CdIn2S4 improves the electron extraction from TiO2 and supports the charge transport in S-scheme. Thanks to this, the TiO2/CQDs/CdIn2S4 presents outstanding photoactivity in converting the polycyclic aromatic hydrocarbons (PAHs) released by cigarette to value-added benzaldehyde. The optimized photocatalyst performs 87.79% conversion rate and 72.76% selectivity in 1 h reaction under a simulated solar source, as confirmed by FT-IR and GC-MS. A combination of experiments and theoretical calculations are conducted to demonstrate the role of CQDs in TiO2/CQDs/CdIn2S4 toward photocatalysis.

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“…In the case of cyclohexane leakage to the air it is important to quickly degrade target pollutants. Zheng et al [14] carried out an experiment on photodegradation efficiency of gas-phase cyclohexane in the presence of various TiO 2 nanostructures. The results demonstrate that titania-based photocatalysts can oxidize gaseous cyclohexane within 6 hours, with 96% degradation efficiency.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytical Degradation of Toluene and Cyclohexane Using LED Illumination

Mioduska¹,

Zielińska‐Jurek²,

Hupka³

2017

Pol. J. Environ. Stud.

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A sol-gel process followed by hydrothermal reaction was used to prepare coupled WO 3 -TiO 2 photocatalysts with varying amounts of WO 3 in respect to TiO 2 (3 mol% and 5 mol% respectively). Additionally, photocatalysts have been subjected to different calcination temperatures of 400ºC and 800ºC, which allowed us to compare how these affect photodegradation efficiency. Photocatalysts were characterized under a scanning electron microscope, x-ray diffraction, and by measuring BET surface area. Photocatalytic tests have been carried out following the degradation of toluene and cyclohexane in the gas phase under LED UV light (375 nm). Elevated calcination temperature turned to enhance photocatalytical efficiency of coupled WO 3 -TiO 2 while degrading the model pollutant cyclohexane. It was demonstrated that light emitting diodes (LEDs) can be used effectively as a source of illumination in photoreactors, sufficient to obtain 90% compound elimination from the air during 15 minutes of illumination while applying a wellmatched photocatalyst.

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Photo-oxidation of gas-phase cyclohexane species over nanostructured TiO2 fabricated by different strategies

Cited by 11 publications

References 22 publications

Photocatalytic degradation of gaseous toluene over ZnAl2O4 prepared by different methods: A comparative study

Photocatalytic degradation of gaseous toluene over ZnAl2O4 prepared by different methods: A comparative study

Carbon Quantum Dots Bridged TiO2/CdIn2S4 toward Photocatalytic Upgrading of Polycyclic Aromatic Hydrocarbons to Benzaldehyde

Photocatalytical Degradation of Toluene and Cyclohexane Using LED Illumination

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