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- Title
Saturated Resin Ectopic Regeneration by Non-Thermal Dielectric Barrier Discharge Plasma.
- Authors
Chunjing Hao; Zehua Xiao; Di Xu; Chengbo Zhang; Jian Qiu; Kefu Liu
- Abstract
Textile dyes are some of the most refractory organic compounds in the environment due to their complex and various structure. An integrated resin adsorption/Dielectric Barrier Discharge (DBD) plasma regeneration was proposed to treat the indigo carmine solution. It is the first time to report ectopic regeneration of the saturated resins by non-thermal Dielectric Barrier Discharge. The adsorption/desorption efficiency, surface functional groups, structural properties, regeneration efficiency, and the intermediate products between gas and liquid phase before and after treatment were investigated. The results showed that DBD plasma could maintain the efficient adsorption performance of resins while degrading the indigo carmine adsorbed by resins. The degradation rate of indigo carmine reached 88% and the regeneration efficiency (RE) can be maintained above 85% after multi-successive regeneration cycles. The indigo carmine contaminants were decomposed by a variety of reactive radicals leading to fracture of exocyclic C=C bond, which could cause decoloration of dye solution. Based on above results, a possible degradation pathway for the indigo carmine by resin adsorption/DBD plasma treatment was proposed.
- Subjects
TEXTILE resins; DIELECTRICS; PLASMA flow
- Publication
Catalysts (2073-4344), 2017, Vol 7, Issue 12, p362
- ISSN
2073-4344
- Publication type
Article
- DOI
10.3390/catal7120362