Publication
Pillared clays from natural resources as catalysts for catalytic wet peroxide oxidation: Characterization and kinetic insights
| dc.contributor.author | Kalmakhanova, Marzhan | |
| dc.contributor.author | Díaz de Tuesta, Jose Luis | |
| dc.contributor.author | Massalimova, Bakytgul Kabykenovna | |
| dc.contributor.author | Gomes, Helder | |
| dc.date.accessioned | 2018-02-19T10:00:00Z | |
| dc.date.accessioned | 2020-06-22T10:18:34Z | |
| dc.date.available | 2018-01-19T10:00:00Z | |
| dc.date.available | 2020-06-22T10:18:34Z | |
| dc.date.issued | 2020 | |
| dc.description.abstract | Pillared clays with Zr and Fe/Cu/Zr polycations have been prepared from natural clays found in large deposits of Kazakhstan and assessed as catalysts for the catalytic wet peroxide oxidation (CWPO), using 4-nitrophenol (4-NP) as model compound. The performance of the catalysts was followed by measuring the concentration of 4-NP, H2O2 and the total organic carbon (TOC), considering C4-NP = 5 g L-1, CH2O2 = 17.8 g L-1, Ccat = 2.5 g L-1, initial pH = 3.0 and T = 50°C. At those selected conditions, the pillared clays showed higher activity than natural clays in the CWPO of 4-NP. The conversion of the model pollutant was complete when Fe/Cu/Zr-PILCs were used, with the TOC removal reaching 78.4% after 24 h with the best Fe/Cu/Zr-PILC. The H2O2, 4-NP and TOC time-evolution was well described by a kinetic model based on TOC lumps in three blocks, considering the initial TOC (corresponding to 4-NP), the production of oxidizable intermediates and the formation of refractory products. | |
| dc.description.sponsorship | This work was financially supported by M.KH. Dulati Taraz State University, through a research work mission carried out in the Associate Laboratory LSRE-LCM, Polytechnic Institute of Bragança, Portugal. This work is also a result of: Project “AIProcMat@N2020 - Advanced Industrial Processes and Materials for a Sustainable Northern Region of Portugal 2020”, with the reference NORTE-01-0145-FEDER-000006, supported by Norte Portugal Regional Operational Programme (NORTE 2020), under the Portugal 2020 Partnership Agreement, through the European Regional Development Fund (ERDF); Associate Laboratory LSRE-LCM-UID/ EQU/50020/2019 – funded by national funds through FCT/MCTES (PIDDAC). | |
| dc.description.version | info:eu-repo/semantics/publishedVersion | en_EN |
| dc.identifier.citation | Kalmakhanova, Marzhan Seitovna; Diaz de Tuesta, Jose Luis; Massalimova, Bakytgul Kabykenovna; Gomes, Helder Teixeira (2020). Pillared clays from natural resources as catalysts for catalytic wet peroxide oxidation: characterization and kinetic insights. Environmental Engineering Research. ISSN 1226-1025. 25:2, p. 186-196 | en_EN |
| dc.identifier.doi | 10.4491/eer.2018.402 | en_EN |
| dc.identifier.issn | 1226-1025 | |
| dc.identifier.uri | http://hdl.handle.net/10198/22315 | |
| dc.language.iso | eng | |
| dc.peerreviewed | yes | en_EN |
| dc.relation | undefined | |
| dc.subject | 4-nitrophenol | en_EN |
| dc.subject | Advanced oxidation process | en_EN |
| dc.subject | Clay-based catalyst | en_EN |
| dc.subject | CWPO | en_EN |
| dc.subject | Kinetic modeling | en_EN |
| dc.subject | Wastewater treatment | en_EN |
| dc.title | Pillared clays from natural resources as catalysts for catalytic wet peroxide oxidation: Characterization and kinetic insights | en_EN |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| person.familyName | Díaz de Tuesta | |
| person.givenName | Jose Luis | |
| person.identifier.ciencia-id | 7A1F-022B-7DBF | |
| person.identifier.ciencia-id | 6218-1E19-13EE | |
| person.identifier.orcid | 0000-0003-2408-087X | |
| person.identifier.orcid | 0000-0001-6898-2408 | |
| person.identifier.rid | D-9785-2017 | |
| person.identifier.scopus-author-id | 55755821600 | |
| rcaap.rights | openAccess | en_EN |
| rcaap.type | article | en_EN |
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