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Nanomaterials 2019, 9(2), 290; https://doi.org/10.3390/nano9020290

Performance of Toluene Removal in a Nonthermal Plasma Catalysis System over Flake-Like HZSM-5 Zeolite with Tunable Pore Size and Evaluation of Its Byproducts

1
School of Environment and Chemical Engineering, Foshan University, Foshan 528000, China
2
School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
3
CT Environmental Group Limited, Guangzhou 510006, China
*
Author to whom correspondence should be addressed.
Received: 24 January 2019 / Revised: 10 February 2019 / Accepted: 13 February 2019 / Published: 19 February 2019
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Abstract

In this study, a series of HZSM-5 catalysts were prepared by the chemical liquid-phase deposition method, and low concentration toluene degradation was carried out in an atmospheric pressure dielectric barrier discharge (DBD) reactor. The catalysts were characterized by X-ray powder diffraction (XRD), SEM, TEM, and N2 adsorption analysis techniques. In addition, several organic contaminants were used to evaluate the adsorption performance of the prepared catalysts, and the effect of pore size on the removal efficiency of toluene and byproduct formation was also investigated. The unmodified HZSM-5 zeolite (Z0) exhibited good performance in toluene removal and CO2 selectivity due to the diffusion resistance of ozone and the amounts of active species (OH• and O•). Meanwhile, the time of flight mass spectrometry (TOF-MS) result showed that there were more byproducts of the benzene ring in the gas phase under the action of small micropore size catalysts. Moreover, the surface byproducts were detected by gas chromatography–mass spectrometry (GC-MS). View Full-Text
Keywords: HZSM-5; dielectric barrier discharge; toluene; pore; byproduct HZSM-5; dielectric barrier discharge; toluene; pore; byproduct
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Xu, W.; Lin, K.; Ye, D.; Jiang, X.; Liu, J.; Chen, Y. Performance of Toluene Removal in a Nonthermal Plasma Catalysis System over Flake-Like HZSM-5 Zeolite with Tunable Pore Size and Evaluation of Its Byproducts. Nanomaterials 2019, 9, 290.

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