Electrochemical oxidation of 2-chloroaniline in single and divided electrochemical flow cells using boron doped diamond anodes
<p dir="ltr">Electrochemical oxidation (EO) using boron-doped diamond (BDD) electrodes attracted increasing interests due to its high efficiency in mineralizing chlorinated organic pollutants in water. However, it produces hazardous disinfection by-products (DBPs) including chloramin...
محفوظ في:
| المؤلف الرئيسي: | |
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| مؤلفون آخرون: | , |
| منشور في: |
2021
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| الموضوعات: | |
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| _version_ | 1864513561837961216 |
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| author | Nasr Bensalah (14778253) |
| author2 | Mohamed Faouzi Ahmadi (16931835) Carlos A. Martinez-Huitle (6936203) |
| author2_role | author author |
| author_facet | Nasr Bensalah (14778253) Mohamed Faouzi Ahmadi (16931835) Carlos A. Martinez-Huitle (6936203) |
| author_role | author |
| dc.creator.none.fl_str_mv | Nasr Bensalah (14778253) Mohamed Faouzi Ahmadi (16931835) Carlos A. Martinez-Huitle (6936203) |
| dc.date.none.fl_str_mv | 2021-05-15T00:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.seppur.2021.118399 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Electrochemical_oxidation_of_2-chloroaniline_in_single_and_divided_electrochemical_flow_cells_using_boron_doped_diamond_anodes/24083208 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Chemical sciences Analytical chemistry Physical chemistry Electrochemical oxidation Boron-doped diamond Divided compartment cell Anion exchange membrane Electro-dialysis |
| dc.title.none.fl_str_mv | Electrochemical oxidation of 2-chloroaniline in single and divided electrochemical flow cells using boron doped diamond anodes |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">Electrochemical oxidation (EO) using boron-doped diamond (BDD) electrodes attracted increasing interests due to its high efficiency in mineralizing chlorinated organic pollutants in water. However, it produces hazardous disinfection by-products (DBPs) including chloramines, chlorate and perchlorate ions and discharges acidic streams. In this work, an attempt to neutralize the acidic effluent and reduce the production of DBPs was developed. To do that, the EO of 2-chloroaniline (2-CA) in single and divided electrochemical flow cells using BDD anode and stainless steel cathode was investigated. The results showed that complete degradation of 2-CA and high mineralization yields were achieved using single and divided compartment cells. The separation of anolyte and catholyte by anion exchange membrane (AEM) in divided electrochemical configuration enhanced the efficiency of the electrochemical treatment and reduced the energy consumption; while, higher concentrations of free chlorine, nitrate, chlorate, and perchlorate ions were generated in the anolyte. A post-treatment of the treated solution in the cathodic compartment at low current density was effective in reducing the amount of free chlorine and chlorate ions, transferring chloride and nitrate ions to the anodic compartment by electrodialysis, and neutralizing the anolyte and catholyte. Divided electrochemical cell configuration has the potential to achieve more efficient treatment of 2-CA for the recovery of valuable by-products (which can be considered as a powerful synthetic tool, from an environmental point of view; to produce high-added value products).</p><h2>Other Information</h2><p dir="ltr">Published in: Separation and Purification Technology<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.seppur.2021.118399" target="_blank">https://dx.doi.org/10.1016/j.seppur.2021.118399</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_ad4e122c276a452ce9e03c037470d535 |
| identifier_str_mv | 10.1016/j.seppur.2021.118399 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/24083208 |
| publishDate | 2021 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Electrochemical oxidation of 2-chloroaniline in single and divided electrochemical flow cells using boron doped diamond anodesNasr Bensalah (14778253)Mohamed Faouzi Ahmadi (16931835)Carlos A. Martinez-Huitle (6936203)Chemical sciencesAnalytical chemistryPhysical chemistryElectrochemical oxidationBoron-doped diamondDivided compartment cellAnion exchange membraneElectro-dialysis<p dir="ltr">Electrochemical oxidation (EO) using boron-doped diamond (BDD) electrodes attracted increasing interests due to its high efficiency in mineralizing chlorinated organic pollutants in water. However, it produces hazardous disinfection by-products (DBPs) including chloramines, chlorate and perchlorate ions and discharges acidic streams. In this work, an attempt to neutralize the acidic effluent and reduce the production of DBPs was developed. To do that, the EO of 2-chloroaniline (2-CA) in single and divided electrochemical flow cells using BDD anode and stainless steel cathode was investigated. The results showed that complete degradation of 2-CA and high mineralization yields were achieved using single and divided compartment cells. The separation of anolyte and catholyte by anion exchange membrane (AEM) in divided electrochemical configuration enhanced the efficiency of the electrochemical treatment and reduced the energy consumption; while, higher concentrations of free chlorine, nitrate, chlorate, and perchlorate ions were generated in the anolyte. A post-treatment of the treated solution in the cathodic compartment at low current density was effective in reducing the amount of free chlorine and chlorate ions, transferring chloride and nitrate ions to the anodic compartment by electrodialysis, and neutralizing the anolyte and catholyte. Divided electrochemical cell configuration has the potential to achieve more efficient treatment of 2-CA for the recovery of valuable by-products (which can be considered as a powerful synthetic tool, from an environmental point of view; to produce high-added value products).</p><h2>Other Information</h2><p dir="ltr">Published in: Separation and Purification Technology<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.seppur.2021.118399" target="_blank">https://dx.doi.org/10.1016/j.seppur.2021.118399</a></p>2021-05-15T00:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.seppur.2021.118399https://figshare.com/articles/journal_contribution/Electrochemical_oxidation_of_2-chloroaniline_in_single_and_divided_electrochemical_flow_cells_using_boron_doped_diamond_anodes/24083208CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/240832082021-05-15T00:00:00Z |
| spellingShingle | Electrochemical oxidation of 2-chloroaniline in single and divided electrochemical flow cells using boron doped diamond anodes Nasr Bensalah (14778253) Chemical sciences Analytical chemistry Physical chemistry Electrochemical oxidation Boron-doped diamond Divided compartment cell Anion exchange membrane Electro-dialysis |
| status_str | publishedVersion |
| title | Electrochemical oxidation of 2-chloroaniline in single and divided electrochemical flow cells using boron doped diamond anodes |
| title_full | Electrochemical oxidation of 2-chloroaniline in single and divided electrochemical flow cells using boron doped diamond anodes |
| title_fullStr | Electrochemical oxidation of 2-chloroaniline in single and divided electrochemical flow cells using boron doped diamond anodes |
| title_full_unstemmed | Electrochemical oxidation of 2-chloroaniline in single and divided electrochemical flow cells using boron doped diamond anodes |
| title_short | Electrochemical oxidation of 2-chloroaniline in single and divided electrochemical flow cells using boron doped diamond anodes |
| title_sort | Electrochemical oxidation of 2-chloroaniline in single and divided electrochemical flow cells using boron doped diamond anodes |
| topic | Chemical sciences Analytical chemistry Physical chemistry Electrochemical oxidation Boron-doped diamond Divided compartment cell Anion exchange membrane Electro-dialysis |