Elaboration of Lamellar and Nanostructured Materials Based on Manganese: Efficient Adsorbents for Removing Heavy Metals
The lamellar and nanostructured manganese oxide materials were chemically synthesized by soft and non-toxic methods. The materials showed a monophasic character, symptomatic morphologies, as well as the predominance of a mesoporous structure. The removal of heavy metals Cd(II) and Pb(II) by the synt...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Slovenian Chemical Society
2020-12-01
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| Series: | Acta Chimica Slovenica |
| Subjects: | |
| Online Access: | https://journals.matheo.si/index.php/ACSi/article/view/6067 |
| _version_ | 1818665911636197376 |
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| author | Amina Amarray Sanae El Ghachtouli Mohammed Ait Himi Mohamed Aqil Khaoula Khaless Younes Brahmi Mouad Dahbi Mohammed Azzi |
| author_facet | Amina Amarray Sanae El Ghachtouli Mohammed Ait Himi Mohamed Aqil Khaoula Khaless Younes Brahmi Mouad Dahbi Mohammed Azzi |
| author_sort | Amina Amarray |
| collection | DOAJ |
| description | The lamellar and nanostructured manganese oxide materials were chemically synthesized by soft and non-toxic methods. The materials showed a monophasic character, symptomatic morphologies, as well as the predominance of a mesoporous structure. The removal of heavy metals Cd(II) and Pb(II) by the synthesized materials Na-MnO2, Urchin-MnO2 and Cocoon-MnO2 according to the mineral structure and nature of the sites were also studied. Kinetically, the lamellar manganese oxide material Na-MnO2 was the most efficient of the three materials which had more vacancies in the MnO6 layers as well as in the space between the layers. The nanomaterials Urchin-MnO2 and Cocoon-MnO2 could exchange with the metal cations in their tunnels and cavities, respectively. The maximum adsorbed quantities followed the order (Pb(II): Na-MnO2 (297 mg/g)˃Urchin-MnO2 (264 mg/g)˃Cocoon-MnO2 (209 mg/g), Cd(II): Na-MnO2 (199 mg/g)˃Urchin-MnO2 (191 mg/g)˃Cocoon-MnO2 (172 mg/g)). Na-MnO2 material exhibited the best stability among the different structures, Na-MnO2 presented a very low amount of the manganese released. The results obtained showed the potential of lamellar manganese oxides (Na-MnO2) and nanostructures (Urchin-MnO2 and Cocoon-MnO2) as selective, economical, and stable materials for the removal of toxic metals in an aqueous medium. |
| first_indexed | 2024-12-17T05:56:10Z |
| format | Article |
| id | doaj.art-c03fcf843bef4389be7fd1d8f68b3f8d |
| institution | Directory Open Access Journal |
| issn | 1318-0207 1580-3155 |
| language | English |
| last_indexed | 2024-12-17T05:56:10Z |
| publishDate | 2020-12-01 |
| publisher | Slovenian Chemical Society |
| record_format | Article |
| series | Acta Chimica Slovenica |
| spelling | doaj.art-c03fcf843bef4389be7fd1d8f68b3f8d2022-12-21T22:01:02ZengSlovenian Chemical SocietyActa Chimica Slovenica1318-02071580-31552020-12-016741180119510.17344/acsi.2020.6067886Elaboration of Lamellar and Nanostructured Materials Based on Manganese: Efficient Adsorbents for Removing Heavy MetalsAmina AmarraySanae El GhachtouliMohammed Ait HimiMohamed AqilKhaoula KhalessYounes BrahmiMouad DahbiMohammed AzziThe lamellar and nanostructured manganese oxide materials were chemically synthesized by soft and non-toxic methods. The materials showed a monophasic character, symptomatic morphologies, as well as the predominance of a mesoporous structure. The removal of heavy metals Cd(II) and Pb(II) by the synthesized materials Na-MnO2, Urchin-MnO2 and Cocoon-MnO2 according to the mineral structure and nature of the sites were also studied. Kinetically, the lamellar manganese oxide material Na-MnO2 was the most efficient of the three materials which had more vacancies in the MnO6 layers as well as in the space between the layers. The nanomaterials Urchin-MnO2 and Cocoon-MnO2 could exchange with the metal cations in their tunnels and cavities, respectively. The maximum adsorbed quantities followed the order (Pb(II): Na-MnO2 (297 mg/g)˃Urchin-MnO2 (264 mg/g)˃Cocoon-MnO2 (209 mg/g), Cd(II): Na-MnO2 (199 mg/g)˃Urchin-MnO2 (191 mg/g)˃Cocoon-MnO2 (172 mg/g)). Na-MnO2 material exhibited the best stability among the different structures, Na-MnO2 presented a very low amount of the manganese released. The results obtained showed the potential of lamellar manganese oxides (Na-MnO2) and nanostructures (Urchin-MnO2 and Cocoon-MnO2) as selective, economical, and stable materials for the removal of toxic metals in an aqueous medium.https://journals.matheo.si/index.php/ACSi/article/view/6067cadmiumleadwaste watermanganese oxidekineticmesoporous structure. |
| spellingShingle | Amina Amarray Sanae El Ghachtouli Mohammed Ait Himi Mohamed Aqil Khaoula Khaless Younes Brahmi Mouad Dahbi Mohammed Azzi Elaboration of Lamellar and Nanostructured Materials Based on Manganese: Efficient Adsorbents for Removing Heavy Metals Acta Chimica Slovenica cadmium lead waste water manganese oxide kinetic mesoporous structure. |
| title | Elaboration of Lamellar and Nanostructured Materials Based on Manganese: Efficient Adsorbents for Removing Heavy Metals |
| title_full | Elaboration of Lamellar and Nanostructured Materials Based on Manganese: Efficient Adsorbents for Removing Heavy Metals |
| title_fullStr | Elaboration of Lamellar and Nanostructured Materials Based on Manganese: Efficient Adsorbents for Removing Heavy Metals |
| title_full_unstemmed | Elaboration of Lamellar and Nanostructured Materials Based on Manganese: Efficient Adsorbents for Removing Heavy Metals |
| title_short | Elaboration of Lamellar and Nanostructured Materials Based on Manganese: Efficient Adsorbents for Removing Heavy Metals |
| title_sort | elaboration of lamellar and nanostructured materials based on manganese efficient adsorbents for removing heavy metals |
| topic | cadmium lead waste water manganese oxide kinetic mesoporous structure. |
| url | https://journals.matheo.si/index.php/ACSi/article/view/6067 |
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