Electrosorption-Enhanced Micro-Column Solid-Phase Extraction of Traces of Cresol Red in Water Using Electrodes of Stainless Steel Wire Coated with Non-Conductive Polymer
A non-conductive polymer was used as an extraction matrix in electrosorption procedures. The monolithic porous polymer was prepared by the in situ stepwise polymerization of epoxy resin and diethylenetriamine as the curing agent and polyethylene glycol (PEG-1540) as the pore-forming reagent. The wor...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SAGE Publications
2012-03-01
|
| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.30.3.241 |
| _version_ | 1797288857640632320 |
|---|---|
| author | Sui Wang Ai-Ni Deng Jing Wei Zhen Guo Ning Zhang Zhi-Yong Guo |
| author_facet | Sui Wang Ai-Ni Deng Jing Wei Zhen Guo Ning Zhang Zhi-Yong Guo |
| author_sort | Sui Wang |
| collection | DOAJ |
| description | A non-conductive polymer was used as an extraction matrix in electrosorption procedures. The monolithic porous polymer was prepared by the in situ stepwise polymerization of epoxy resin and diethylenetriamine as the curing agent and polyethylene glycol (PEG-1540) as the pore-forming reagent. The working electrode consisting of a metal wire coated with epoxy resin-based polymer was connected to a direct high-voltage power supply, employing a platinum wire as the counter-electrode. The aqueous solution of Cresol Red selected as a model target analyte was extracted by electrosorption-enhanced micro-column solid-phase extraction, and the concentration determined by UV–vis spectrophotometric methods. The experimental conditions, including the electric potential, the extraction and desorption time, the pH of the initial solution and ionic strength, were optimized. The results showed that the adsorption rate and capacity towards Cresol Red could be improved significantly by anodic polarization, while cathodic polarization had a smaller effect on the adsorption process. The kinetics of the process were determined as Lagergren first-order. The electrosorption isotherm was in good agreement with the Freundlich and linear equations. The equilibrium adsorption capacity was four-times higher at 300 V and 20 min, in comparison with the absence of an electric field. |
| first_indexed | 2024-03-07T18:55:39Z |
| format | Article |
| id | doaj.art-b301bbca433d401e96185af6eae9b46b |
| institution | Directory Open Access Journal |
| issn | 0263-6174 2048-4038 |
| language | English |
| last_indexed | 2024-03-07T18:55:39Z |
| publishDate | 2012-03-01 |
| publisher | SAGE Publications |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj.art-b301bbca433d401e96185af6eae9b46b2024-03-02T00:24:53ZengSAGE PublicationsAdsorption Science & Technology0263-61742048-40382012-03-013010.1260/0263-6174.30.3.241Electrosorption-Enhanced Micro-Column Solid-Phase Extraction of Traces of Cresol Red in Water Using Electrodes of Stainless Steel Wire Coated with Non-Conductive PolymerSui WangAi-Ni DengJing WeiZhen GuoNing ZhangZhi-Yong GuoA non-conductive polymer was used as an extraction matrix in electrosorption procedures. The monolithic porous polymer was prepared by the in situ stepwise polymerization of epoxy resin and diethylenetriamine as the curing agent and polyethylene glycol (PEG-1540) as the pore-forming reagent. The working electrode consisting of a metal wire coated with epoxy resin-based polymer was connected to a direct high-voltage power supply, employing a platinum wire as the counter-electrode. The aqueous solution of Cresol Red selected as a model target analyte was extracted by electrosorption-enhanced micro-column solid-phase extraction, and the concentration determined by UV–vis spectrophotometric methods. The experimental conditions, including the electric potential, the extraction and desorption time, the pH of the initial solution and ionic strength, were optimized. The results showed that the adsorption rate and capacity towards Cresol Red could be improved significantly by anodic polarization, while cathodic polarization had a smaller effect on the adsorption process. The kinetics of the process were determined as Lagergren first-order. The electrosorption isotherm was in good agreement with the Freundlich and linear equations. The equilibrium adsorption capacity was four-times higher at 300 V and 20 min, in comparison with the absence of an electric field.https://doi.org/10.1260/0263-6174.30.3.241 |
| spellingShingle | Sui Wang Ai-Ni Deng Jing Wei Zhen Guo Ning Zhang Zhi-Yong Guo Electrosorption-Enhanced Micro-Column Solid-Phase Extraction of Traces of Cresol Red in Water Using Electrodes of Stainless Steel Wire Coated with Non-Conductive Polymer Adsorption Science & Technology |
| title | Electrosorption-Enhanced Micro-Column Solid-Phase Extraction of Traces of Cresol Red in Water Using Electrodes of Stainless Steel Wire Coated with Non-Conductive Polymer |
| title_full | Electrosorption-Enhanced Micro-Column Solid-Phase Extraction of Traces of Cresol Red in Water Using Electrodes of Stainless Steel Wire Coated with Non-Conductive Polymer |
| title_fullStr | Electrosorption-Enhanced Micro-Column Solid-Phase Extraction of Traces of Cresol Red in Water Using Electrodes of Stainless Steel Wire Coated with Non-Conductive Polymer |
| title_full_unstemmed | Electrosorption-Enhanced Micro-Column Solid-Phase Extraction of Traces of Cresol Red in Water Using Electrodes of Stainless Steel Wire Coated with Non-Conductive Polymer |
| title_short | Electrosorption-Enhanced Micro-Column Solid-Phase Extraction of Traces of Cresol Red in Water Using Electrodes of Stainless Steel Wire Coated with Non-Conductive Polymer |
| title_sort | electrosorption enhanced micro column solid phase extraction of traces of cresol red in water using electrodes of stainless steel wire coated with non conductive polymer |
| url | https://doi.org/10.1260/0263-6174.30.3.241 |
| work_keys_str_mv | AT suiwang electrosorptionenhancedmicrocolumnsolidphaseextractionoftracesofcresolredinwaterusingelectrodesofstainlesssteelwirecoatedwithnonconductivepolymer AT ainideng electrosorptionenhancedmicrocolumnsolidphaseextractionoftracesofcresolredinwaterusingelectrodesofstainlesssteelwirecoatedwithnonconductivepolymer AT jingwei electrosorptionenhancedmicrocolumnsolidphaseextractionoftracesofcresolredinwaterusingelectrodesofstainlesssteelwirecoatedwithnonconductivepolymer AT zhenguo electrosorptionenhancedmicrocolumnsolidphaseextractionoftracesofcresolredinwaterusingelectrodesofstainlesssteelwirecoatedwithnonconductivepolymer AT ningzhang electrosorptionenhancedmicrocolumnsolidphaseextractionoftracesofcresolredinwaterusingelectrodesofstainlesssteelwirecoatedwithnonconductivepolymer AT zhiyongguo electrosorptionenhancedmicrocolumnsolidphaseextractionoftracesofcresolredinwaterusingelectrodesofstainlesssteelwirecoatedwithnonconductivepolymer |