Journal article
Formation of PCDD/Fs in oxidation of 2-chlorophenol on neat silica surface
Environmental Science & Technology, Vol.50(3), pp.1412-1418
2016
Abstract
This contribution studies partial oxidation of 2-chlorophenol on surfaces of neat silica at temperatures of 250, 350, and 400 °C; i.e., temperatures that frequently lead to catalytic formation of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) from their precursors. We have identified 2,6-dichlorophenol (2,6-DCPh), 2,4-dichlorophenol (2,4-DCPh), and 2,4,6-trichlorophenol (2,4,6-TriCPh), but have detected no chlorinated benzenes (CBzs). The detected chlorinated and nonchlorinated DD/Fs comprise dibenzo-p-dioxin (DD), 1- and 2-monochlorodibenzo-p-dioxin (1-, 2-MCDD), 1,6-, 1,9-, 1,3-dichlorodibenzo-p-dioxin (1,6-, 1,9-, 1,3-DCDD), 4-monochlorodibenzofuran (4-MCDF), and 4,6-dichlorodibenzofuran (4,6-DCDF) at the reaction temperatures of 350 and 400 °C. However, at a lower reaction temperature, 250 °C, we have detected no PCDD/Fs. We have demonstrated that neat silica surfaces catalyze the generation of PCDD/Fs from chlorophenols at the upper range of the catalytic formation temperature of PCDD/F. The present finding proves the generation of PCDD/Fs on particles of fly ash, even in the absence of transition metals.
Details
- Title
- Formation of PCDD/Fs in oxidation of 2-chlorophenol on neat silica surface
- Authors/Creators
- S. Mosallanejad (Author/Creator) - University of Newcastle AustraliaB.Z. Dlugogorski (Author/Creator) - Murdoch UniversityE.M. Kennedy (Author/Creator) - University of Newcastle AustraliaM. Stockenhuber (Author/Creator) - University of Newcastle AustraliaS.M. Lomnicki (Author/Creator) - Louisiana State UniversityN.W. Assaf (Author/Creator) - Murdoch UniversityM. Altarawneh (Author/Creator) - Murdoch University
- Publication Details
- Environmental Science & Technology, Vol.50(3), pp.1412-1418
- Publisher
- American Chemical Society
- Identifiers
- 991005544436707891
- Copyright
- © 2015 American Chemical Society.
- Murdoch Affiliation
- School of Engineering and Information Technology
- Language
- English
- Resource Type
- Journal article
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites
Metrics
26 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.60 Herbicides, Pesticides & Ground Poisoning
- 3.60.221 Persistent Organic Pollutants
- Web Of Science research areas
- Engineering, Environmental
- Environmental Sciences
- ESI research areas
- Environment/Ecology