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Environ Sci Pollut Res Int

Title:		Gas-phase isopropanol degradation by nonthermal plasma combined with Mn-Cu/-Al(2)O(3)
Author(s):		Chang KL; Lin YC; Qiu MZ; Tu CW; Chang CP; Wu JL; Lin YC; Chang CK;
Address:		"Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan. Department of Public Health, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan. Environmental Resource and Management Research Center, National Cheng Kung University, Tainan, Taiwan. Department of Electrical Engineering, Cheng Shiu University, Kaohsiung, Taiwan. Center for environmental Toxin and Emerging Contaminant Research, Cheng Shiu University, Kaohsiung, Taiwan. Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan. isaac@nkust.edu.tw"
Journal Title:		Environ Sci Pollut Res Int
Year:		2021
Volume:		20201127
Issue:		30
Page Number:		40693 - 40702
DOI:		10.1007/s11356-020-10721-3
ISSN/ISBN:		1614-7499 (Electronic) 0944-1344 (Linking)
Abstract:		"In this study, the dielectric barrier discharge (DBD) induced by nonthermal plasma (NTP) technology was used for isopropanol (IPA) degradation. IPA, intermediate, final product, and ozone concentrations were analyzed using GC-MS, carbon dioxide detector, and ozone detector. The experimental flow rate and concentration were fixed to 1 L/min and 1200 ppm +/- 10%, respectively. Different reaction procedures were proposed for self-made metal catalyst combined with a plasma system (plasma alone and gamma-Al(2)O(3) combined with plasma, Cu (5 wt%)/gamma-Al(2)O(3) combined with plasma, Mn (3 wt%)-Cu (5 wt%)/gamma-Al(2)O(3) combined with plasma). In addition, the effect of the carrier gas oxygen content (0%, 20%, and 100%) on IPA conversion and intermediate and carbon dioxide selectivity was also investigated. The results revealed that the Mn (F)-Cu/gamma-Al(2)O(3) combined with plasma exhibited more efficient IPA conversion. In the 100% oxygen environment, the IPA conversion rate increased from 79.32 to 99.99%, and carbon dioxide selectivity increased from 3.82 to 50.23%. IPA was completely converted after 60 min of plasma treatment with the acetone selectivity, carbon dioxide selectivity, and tail ozone concentration of 26.71% +/- 1.27%, 50.23% +/- 0.56%, and 1761 +/- 11 ppm, respectively. This study proved that the current single planar DBD configuration is an effective advanced treatment technology for the decomposition of VOCs"
Keywords:		*2-Propanol Acetone Carbon Dioxide Catalysis *Ozone Dielectric barrier discharge Isopropyl alcohol Metal catalyst Volatile organic compound;
Notes:		"MedlineChang, Ken-Lin Lin, Yu-Chieh Qiu, Ming-Ze Tu, Chun-Wei Chang, Chih-Ping Wu, Jhong-Lin Lin, Yung-Chang Chang, Chien-Kuei eng 108-2221-E-110-051/Ministry of Science and Technology, Taiwan/ 109-2221-E-110-020-MY2/Ministry of Science and Technology, Taiwan/ No.2019-LRRRU04/Research Fund Program of Guangdong Key Laboratory of Radioactive and Rare Resource Utilization/ Germany 2020/11/28 Environ Sci Pollut Res Int. 2021 Aug; 28(30):40693-40702. doi: 10.1007/s11356-020-10721-3. Epub 2020 Nov 27"