| Title: | Chlorobenzene degeradation by non-thermal plasma combined with EG-TiO(2)/ZnO as a photocatalyst: Effect of photocatalyst on CO(2) selectivity and byproducts reduction |
| Author(s): | Ghorbani Shahna F; Bahrami A; Alimohammadi I; Yarahmadi R; Jaleh B; Gandomi M; Ebrahimi H; Ad-Din Abedi K; |
| Address: | "Center of Excellence for Occupational Health and Research Center for Health Science, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran. Department of Occupational Health, School of Public Health, Iran University of Medical Sciences, Tehran, Iran. Faculty of Science, Physics Department, Bu-Ali Sina University, Hamedan, Iran. Department of Occupational Health, School of Public Health, Iran University of Medical Sciences, Tehran, Iran. Electronic address: hossein.ebrahimi@yahoo.com. Department of Occupational Health Engineering, Faculty of Health, Kurdistan University of Medical sciences, Sanandaj, Iran" |
| DOI: | 10.1016/j.jhazmat.2016.11.025 |
| ISSN/ISBN: | 1873-3336 (Electronic) 0304-3894 (Linking) |
| Abstract: | "The non-thermal plasma (NTP) technique, which suffers from low selectivity in complete oxidation of volatile organic compounds to CO(2) and H(2)O, creates unwanted and harmful byproducts. NTP in concert with photocatalyst can resolve this limitation due to additional oxidation. TiO(2) and ZnO nanoparticles were coated on the surface of the expanded graphite and placed downstream of the NTP reactor under UV light. In this study, to compare the performance of NTP and the combined system, chlorobenzene removal, selectivity of CO(2) and byproducts formation were investigated. The results showed that the combined system enhanced both the removal efficiency and CO(2) selectivity. The output gas of the NTP reactor contained chlorobenzene, phosgene, O(3), NO, NO(2), CO, CO(2), HCL and CL. The bulk of these byproducts was oxidized on the surface of the nanocomposite; as a result, the content of the byproducts in the output gas of the combined system decreased dramatically. The removal efficiency and CO(2) selectivity increased by rising the applied voltage and residence time because the collision between active species and pollutant molecules increases. Based on these results, the combined system is preferred due to a higher performance and lower formation of harmful byproducts" |
| Keywords: | Byproducts reduction Expanded graphite Non-thermal plasma Photocatalyst TiO(2)/ZnO catalysts; |
| Notes: | "PubMed-not-MEDLINEGhorbani Shahna, Farshid Bahrami, Abdulrahman Alimohammadi, Iraj Yarahmadi, Rassuol Jaleh, Babak Gandomi, Mastaneh Ebrahimi, Hossein Ad-Din Abedi, Kamal eng Netherlands 2016/11/27 J Hazard Mater. 2017 Feb 15; 324(Pt B):544-553. doi: 10.1016/j.jhazmat.2016.11.025. Epub 2016 Nov 9" |
