Efficient toluene abatement in indoor air by a plasma catalytic hybrid system

Durme, Jim Van; Dewulf, Jo; Sysmans, W.; Leys, Christophe; Langenhove, Herman Van

doi:10.1016/j.apcatb.2007.02.006

Cited by 166 publications

(85 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…These authors concluded that, for the single-stage combination (i.e., the one-stage arrangement), the ozone decomposition property of the catalysts was not important. Similarly, Van Durme et al [34] found that when MnO2-CuO/TiO2 was subjected to a plasma, it resulted in a low toluene removal efficiency compared to TiO2, which does not have the ability to decompose ozone. However, a positive effect was observed for the in-plasma supported MnOx catalyst when dealing with acetone, a persistent compound [16,30], in which case the formation of ozone-induced atomic oxygen therefore becomes important.…”

Section: Dee Decomposition In a One-stage Reactormentioning

confidence: 96%

Non-Thermal Plasma Combined with Cordierite-Supported Mn and Fe Based Catalysts for the Decomposition of Diethylether

Trinh

Mok

2015

Catalysts

View full text Add to dashboard Cite

Abstract:The removal of dilute diethylether (DEE, concentration: 150 ppm) from an air stream (flow rate: 1.0 L min −1 ) using non-thermal plasma combined with different cordierite-supported catalysts, including Mn, Fe, and mixed Mn-Fe oxides, was investigated. The experimental results showed that the decomposition of DEE occurred in a one-stage reactor without the positive synergy of plasma and supported catalysts, by which ca. 96% of DEE was removed at a specific input energy (SIE) of ca. 600 J L −1 , except when the mixed Mn-Fe/cordierite was used. Among the catalysts that were examined, Mn-Fe/cordierite, the catalyst that was the most efficient at decomposing ozone was found to negatively affect the decomposition of DEE in the one-stage reactor. However, when it was utilized as a catalyst in the post-plasma stage of a two-part hybrid reactor, in which Mn/cordierite was directly exposed to the plasma, the reactor performance in terms of DEE decomposition efficiency was improved by more than 10% at low values of SIE compared to the efficiency that was achieved without Mn-Fe/cordierite. The ozone that was formed during the plasma stage and its subsequent catalytic dissociation during the post-plasma stage to produce atomic oxygen therefore played important roles in the removal of DEE.

show abstract

Section: Dee Decomposition In a One-stage Reactormentioning

confidence: 96%

Non-Thermal Plasma Combined with Cordierite-Supported Mn and Fe Based Catalysts for the Decomposition of Diethylether

Trinh

Mok

2015

Catalysts

View full text Add to dashboard Cite

show abstract

“…However, the intermediates produced during photocatalytic oxidation occupy the active sites of the catalyst surface, thereby deactivating the catalyst. Some researchers have used plasma to generate reactive species, including energetic electrons and atomic oxygen, to oxidize BTX into CO 2 and H 2 O (Delagrange et al, 2006;Ogata et al, 2003;Van Durme et al, 2007), but the high energy consumption required by this process and the formation of undesired byproducts restrict its application. Adsorption is a good choice for the removal of BTX.…”

Section: Introductionmentioning

confidence: 99%

In situ adsorption-catalysis system for the removal of o-xylene over an activated carbon supported Pd catalyst

Huang

Zhang

2009

Journal of Environmental Sciences

View full text Add to dashboard Cite

An activated carbon (AC) supported Pd catalyst was used to develop a highly efficient in situ adsorption-catalysis system for the removal of low concentrations of o-xylene. In this study, three kinds of Pd/AC catalysts were prepared and tested to investigate the synergistic efficiency between adsorption and catalysis for o-xylene removal. The Pd/AC catalyst was first used as an adsorbent to concentrate dilute o-xylene at low temperature. After saturated adsorption, the adsorbed o-xylene was oxidized to CO 2 and H 2 O by raising the temperature of the catalyst bed. The results showed that more than 99% of the adsorbed o-xylene was completely oxidized to CO 2 over a 5% Pd/AC catalyst at 140°C. Brunauer-Emmett-Teller (BET) analysis, scanning electron microscopy (SEM), temperatureprogrammed desorption (TPD), and temperature-programmed oxidation (TPO) were applied to investigate the physical properties of o-xylene adsorption-desorption and the in situ adsorption-catalysis activity of the AC support and Pd/AC catalyst. A synergistic relationship between the AC support and the active Pd species for the removal of low concentrations of o-xylene was established.

show abstract

“…Current advances in building management significantly impede IAQ improvement by the first two methods (Bennett, 2009), hence the option of pollution abatement is receiving more attention. Several technologies are available and already operational to this end, such as filter systems (Batterman et al, 2005;Bekö et al, 2008;Zhang et al, 2011), ozone generators (Kwong et al, 2008;Zhang et al, 2011) and plasma catalytic systems (Van Durme et al, 2007;Van Wesenbeeck et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Cost-effectiveness analysis to assess commercial TiO2 photocatalysts for acetaldehyde degradation in air

Verbruggen¹,

Tytgat

Passel

et al. 2014

Chemical Papers

View full text Add to dashboard Cite

In the commercialisation of photocatalytic air purifiers, the performance as well as the cost of the catalytic material plays an important role. Where most comparative studies only regard the photocatalytic activity as a decisive parameter, in this study both activity and cost are taken into account. Using a cost-effectiveness analysis, six different commercially available TiO2-based catalysts are evaluated in terms of their activities in photocatalytic degradation of acetaldehyde as a model reaction for indoor air purification.

show abstract

Efficient toluene abatement in indoor air by a plasma catalytic hybrid system

Cited by 166 publications

References 35 publications

Non-Thermal Plasma Combined with Cordierite-Supported Mn and Fe Based Catalysts for the Decomposition of Diethylether

Non-Thermal Plasma Combined with Cordierite-Supported Mn and Fe Based Catalysts for the Decomposition of Diethylether

In situ adsorption-catalysis system for the removal of o-xylene over an activated carbon supported Pd catalyst

Cost-effectiveness analysis to assess commercial TiO2 photocatalysts for acetaldehyde degradation in air

Contact Info

Product

Resources

About