Synergistic effect of catalyst for oxidation removal of toluene

Zhu, Tao; Li, Jian; Liang, Wenjun; Jin, Yuquan

doi:10.1016/j.jhazmat.2008.10.085

Cited by 36 publications

(20 citation statements)

References 5 publications

(7 reference statements)

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“…The byproducts such as aldehyde, alcohols, amide, hydroxybenzene and polymerization products, etc, were identified by Gas chromatography mass spectrometry (GC-MS) (manufactured by American Thermo Finnegan Co.) and FT-IR (model Vertex 70, manufactured by Germany). Ozone concentration was measured by a chemical titration method of iodine (Zhu et al, 2009b).…”

Section: Methodsmentioning

confidence: 99%

“…The selected catalyst of MnO 2 was well known for high potential to decompose ozone. In the experiment, the prepared MnO 2 /γ-Al 2 O 3 was used as catalyst to reduce the byproducts and toluene concentrations (Zhu et al, 2009b) also justified about 10 wt %. The objective of this study was to use a combination of catalysts (MnO 2 /γ-Al 2 O 3 coupled with modified ferroelectric of nano-Ba 0.8 Sr 0.2 Zr 0.1 Ti 0.9 O 3 ) in the NTP process for toluene decomposition in order to enhance toluene decomposition efficiency and increase energy efficiency and reduce byproducts for commercial applications.…”

Section: Introductionmentioning

confidence: 99%

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Volatile organic compounds decomposition using nonthermal plasma coupled with a combination of catalysts

Zhu

Wan

et al. 2011

Int. J. Environ. Sci. Technol.

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A series of experiments were performed for toluene decomposition from a gaseous influent at normal temperature and atmospheric pressure by nonthermal plasma coupled with a combination of catalysts technology. Nonthermal plasma was generated by dielectric barrier discharge. γ-Al 2 O 3 was used to be a sorbent and a catalyst carrier. Nanocatalysts were MnO 2 /γ-Al 2 O 3 coupled with modified ferroelectric of nano-Ba 0.8 Sr 0.2 Zr 0.1 Ti 0.9 O 3 . γ-Al 2 O 3 played an important role in prolonging reaction time of nonthermal plasma with volatile organic compounds molecules. MnO 2 /γ-Al 2 O 3 has an advantage for ozone removal, while nano-Ba 0.8 Sr 0.2 Zr 0.1 Ti 0.9 O 3 is a kind of good ferroelectric material for improving energy efficiency. Thus these packed materials were incorporated together to strengthen nonthermal plasma power for volatile organic compounds decomposition. The results showed the synergistic technology resulted in greater enhancement of toluene removal and energy efficiencies and a better inhibition for ozone formation in the gas exhaust. Based on the data analysis of the Fourier transforms infrared spectrum, the reaction process of toluene decomposition and the mechanism of synergistic effect are discussed. The results showed in a complex oxidation mechanism of toluene via several pathways, producing either ringretaining or ringopening products. The final products were carbon dioxide and water.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Volatile organic compounds decomposition using nonthermal plasma coupled with a combination of catalysts

Zhu

Wan

et al. 2011

Int. J. Environ. Sci. Technol.

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“…Toluene is an irritant to the skin and mucous membrane, and can act as an anesthetic to the central nervous system [32,33]. Thus, one of the challenges in the field of photocatalytic air treatment systems is the development of photoactive materials activated by low powered and low cost irradiation sources (such as LEDs) to remove VOCs, such as toluene.…”

Section: Introductionmentioning

confidence: 99%

Noble metal modified TiO2 microspheres: Surface properties and photocatalytic activity under UV–vis and visible light

Grabowska

Marchelek

Klimczuk

et al. 2016

Journal of Molecular Catalysis A: Chemical

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“…As one of the typical VOCs, toluene effluents come from many industries, such as paints, paint thinners, fingernail polish, lacquers, adhesives, rubber, and some printing and leather tanning processes. As an emerging technology for VOCs emission control, there has been extensive A c c e p t e d M a n u s c r i p t research on using non-thermal plasma (NTP) over the past twenty years [2][3][4][5][6][7]. The major advantages of NTP technology include the moderate operation conditions (normal temperature and atmospheric pressure), moderate capital cost, compact system, easy operations and short residence times compared to the conventional technologies [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Volatile organic compounds emission control in industrial pollution source using plasma technology coupled with F-TiO₂/γ-Al₂O₃

Zhu

Chen

Xia

et al. 2015

Environmental Technology

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Volatile organic compounds' (VOCs) effluents, which come from many industries, are triggering serious environmental problems. As an emerging technology, non-thermal plasma (NTP) technology is a potential technology for VOCs emission control. NTP coupled with F-TiO2/γ-Al2O3 is used for toluene removal from a gaseous influent at normal temperature and atmospheric pressure. NTP is generated by dielectric barrier discharge, and F-TiO2/γ-Al2O3 can be prepared by sol-gel method in the laboratory. In the experiment, the different packed materials were packed into the plasma reactor, including γ-Al2O3, TiO2/γ-Al2O3 and F-TiO2/γ-Al2O3. Through a series of characterization methods such as X-ray diffraction, scanning electronic microscopy and Brunner-Emmet-Teller measurements, the results show that the particle size distribution of F-TiO2 is relatively smaller than that of TiO2, and the pore distribution of F-TiO2 is more uniformly distributed than that of TiO2. The relationships among toluene removal efficiency, reactor input energy density, and the equivalent capacitances of air gap and dielectric barrier layer were investigated. The results show that the synergistic technology NTP with F-TiO2/γ-Al2O3 resulted in greater enhancement of toluene removal efficiency and energy efficiency. Especially, when packing with F-TiO2/γ-Al2O3 in NTP reactor, toluene removal efficiency reaches 99% and higher. Based on the data analysis of Fourier Transform Infrared Spectroscopy, the experimental results showed that NTP reactor packed with F-TiO2/γ-Al2O3 resulted in a better inhibition for by-products formation effectively in the gas exhaust.

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Synergistic effect of catalyst for oxidation removal of toluene

Cited by 36 publications

References 5 publications

Volatile organic compounds decomposition using nonthermal plasma coupled with a combination of catalysts

Volatile organic compounds decomposition using nonthermal plasma coupled with a combination of catalysts

Noble metal modified TiO2 microspheres: Surface properties and photocatalytic activity under UV–vis and visible light

Volatile organic compounds emission control in industrial pollution source using plasma technology coupled with F-TiO₂/γ-Al₂O₃

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Synergistic effect of catalyst for oxidation removal of toluene

Cited by 36 publications

References 5 publications

Volatile organic compounds decomposition using nonthermal plasma coupled with a combination of catalysts

Volatile organic compounds decomposition using nonthermal plasma coupled with a combination of catalysts

Noble metal modified TiO2 microspheres: Surface properties and photocatalytic activity under UV–vis and visible light

Volatile organic compounds emission control in industrial pollution source using plasma technology coupled with F-TiO2/γ-Al2O3

Contact Info

Product

Resources

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Volatile organic compounds emission control in industrial pollution source using plasma technology coupled with F-TiO₂/γ-Al₂O₃