Some Environmentally Relevant Reactions of Cerium Oxide
Reactive forms of cerium oxide were prepared by a thermal decomposition of various precursors, namely carbonates, oxalates and citrates, commercially available nanocrystalline cerium oxide (nanoceria) was involved in the study for comparison. Scanning electron microscopy (SEM) and x-ray diffraction...
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| Format: | Article |
| Language: | English |
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SciCell s.r.o.
2014-12-01
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| Series: | Nova Biotechnologica et Chimica |
| Subjects: | |
| Online Access: | http://www.degruyter.com/view/j/nbec.2014.13.issue-2/nbec-2015-0005/nbec-2015-0005.xml?format=INT |
| _version_ | 1818533637986975744 |
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| author | Janoš Pavel Ederer Jakub Došek Marek |
| author_facet | Janoš Pavel Ederer Jakub Došek Marek |
| author_sort | Janoš Pavel |
| collection | DOAJ |
| description | Reactive forms of cerium oxide were prepared by a thermal decomposition of various precursors, namely carbonates, oxalates and citrates, commercially available nanocrystalline cerium oxide (nanoceria) was involved in the study for comparison. Scanning electron microscopy (SEM) and x-ray diffraction analysis (XRD) were used to examine the morphology and crystallinity of the samples, respectively, whereas the Brunauer-Emmett-Teller (BET) method of nitrogen adsorption was used to determine surface areas. Interactions of cerium oxide with some phosphorus-containing compounds were investigated. Some of the examined samples, especially those prepared by annealing from carbonate precursors, exhibited an outstanding ability to destroy highly toxic organophosphates, such as pesticides (parathion methyl), or nerve agents (soman, VX). There were identified some relations between the degradation efficiency of cerium oxides and their crystallinity. It was also shown that cerium oxide is able to destroy one of widely used flame retardants - triphenyl phosphate. A phosphatase-mimetic activity of various cerium oxides was examined with the aid of a standardized phosphatase test. |
| first_indexed | 2024-12-11T18:01:22Z |
| format | Article |
| id | doaj.art-743a0e1667f94e69839a45b1370ebde4 |
| institution | Directory Open Access Journal |
| issn | 1338-6905 |
| language | English |
| last_indexed | 2024-12-11T18:01:22Z |
| publishDate | 2014-12-01 |
| publisher | SciCell s.r.o. |
| record_format | Article |
| series | Nova Biotechnologica et Chimica |
| spelling | doaj.art-743a0e1667f94e69839a45b1370ebde42022-12-22T00:55:53ZengSciCell s.r.o.Nova Biotechnologica et Chimica1338-69052014-12-0113214816110.1515/nbec-2015-0005nbec-2015-0005Some Environmentally Relevant Reactions of Cerium OxideJanoš Pavel0Ederer Jakub1Došek Marek2Faculty of the Environment, University of Jan Evangelista Purkyně, Králova Výšina 7, 40096 Ústí nad Labem, Czech Republic (Faculty of the Environment, University of Jan Evangelista Purkyně, Králova Výšina 7, 40096 Ústí nad Labem, Czech RepublicFaculty of the Environment, University of Jan Evangelista Purkyně, Králova Výšina 7, 40096 Ústí nad Labem, Czech RepublicReactive forms of cerium oxide were prepared by a thermal decomposition of various precursors, namely carbonates, oxalates and citrates, commercially available nanocrystalline cerium oxide (nanoceria) was involved in the study for comparison. Scanning electron microscopy (SEM) and x-ray diffraction analysis (XRD) were used to examine the morphology and crystallinity of the samples, respectively, whereas the Brunauer-Emmett-Teller (BET) method of nitrogen adsorption was used to determine surface areas. Interactions of cerium oxide with some phosphorus-containing compounds were investigated. Some of the examined samples, especially those prepared by annealing from carbonate precursors, exhibited an outstanding ability to destroy highly toxic organophosphates, such as pesticides (parathion methyl), or nerve agents (soman, VX). There were identified some relations between the degradation efficiency of cerium oxides and their crystallinity. It was also shown that cerium oxide is able to destroy one of widely used flame retardants - triphenyl phosphate. A phosphatase-mimetic activity of various cerium oxides was examined with the aid of a standardized phosphatase test.http://www.degruyter.com/view/j/nbec.2014.13.issue-2/nbec-2015-0005/nbec-2015-0005.xml?format=INTcerium oxidereactive sorbenttoxic organophosphateschemical warfare agents |
| spellingShingle | Janoš Pavel Ederer Jakub Došek Marek Some Environmentally Relevant Reactions of Cerium Oxide Nova Biotechnologica et Chimica cerium oxide reactive sorbent toxic organophosphates chemical warfare agents |
| title | Some Environmentally Relevant Reactions of Cerium Oxide |
| title_full | Some Environmentally Relevant Reactions of Cerium Oxide |
| title_fullStr | Some Environmentally Relevant Reactions of Cerium Oxide |
| title_full_unstemmed | Some Environmentally Relevant Reactions of Cerium Oxide |
| title_short | Some Environmentally Relevant Reactions of Cerium Oxide |
| title_sort | some environmentally relevant reactions of cerium oxide |
| topic | cerium oxide reactive sorbent toxic organophosphates chemical warfare agents |
| url | http://www.degruyter.com/view/j/nbec.2014.13.issue-2/nbec-2015-0005/nbec-2015-0005.xml?format=INT |
| work_keys_str_mv | AT janospavel someenvironmentallyrelevantreactionsofceriumoxide AT edererjakub someenvironmentallyrelevantreactionsofceriumoxide AT dosekmarek someenvironmentallyrelevantreactionsofceriumoxide |