Encapsulation of halloysite with sodium alginate and application in the adsorption of copper from rainwater
As part of the work, experiments were carried out on a laboratory scale to assess the effectiveness of the use of composite capsules based on halloysite and sodium alginate for the adsorption of copper from rainwater. The halloysite was subjected to acid activation prior to the encapsulation process...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2022-03-01
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| Series: | Archives of Environmental Protection |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/122594/PDF/Archives%20vol%2048%20no1pp75_82.pdf |
| _version_ | 1797448475596554240 |
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| author | Anna Marszałek |
| author_facet | Anna Marszałek |
| author_sort | Anna Marszałek |
| collection | DOAJ |
| description | As part of the work, experiments were carried out on a laboratory scale to assess the effectiveness of the use of composite capsules based on halloysite and sodium alginate for the adsorption of copper from rainwater. The halloysite was subjected to acid activation prior to the encapsulation process. The characteristics of the capsules obtained were determined by means of SEM surface imaging, nitrogen adsorption by the BET method and pH PZC measurement by the suspension method. Adsorption was studied using various operational parameters such as adsorbent dose, contact time, pH and concentration of copper ions in the rainwater. A high percentage of copper ions removal was demonstrated, i.e. 72% for halloysite (H), and 83% for activated halloysite (HA) for a dose of 2.0 g/L. Adsorption of Cu (II) was consistent with pseudo-second order kinetics. The adsorbents showed a high adsorption capacity at the level of 11.03 mg/g, determined by the Langmuir isotherm model. This model fit well with the experimental data. |
| first_indexed | 2024-03-09T14:11:00Z |
| format | Article |
| id | doaj.art-955d44967a6f4815b5188d6b852f0709 |
| institution | Directory Open Access Journal |
| issn | 2083-4772 2083-4810 |
| language | English |
| last_indexed | 2024-03-09T14:11:00Z |
| publishDate | 2022-03-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Environmental Protection |
| spelling | doaj.art-955d44967a6f4815b5188d6b852f07092023-11-29T10:40:55ZengPolish Academy of SciencesArchives of Environmental Protection2083-47722083-48102022-03-01vol. 48No 17582https://doi.org/10.24425/aep.2022.140546Encapsulation of halloysite with sodium alginate and application in the adsorption of copper from rainwaterAnna Marszałek0Silesian University of Technology, Gliwice, PolandAs part of the work, experiments were carried out on a laboratory scale to assess the effectiveness of the use of composite capsules based on halloysite and sodium alginate for the adsorption of copper from rainwater. The halloysite was subjected to acid activation prior to the encapsulation process. The characteristics of the capsules obtained were determined by means of SEM surface imaging, nitrogen adsorption by the BET method and pH PZC measurement by the suspension method. Adsorption was studied using various operational parameters such as adsorbent dose, contact time, pH and concentration of copper ions in the rainwater. A high percentage of copper ions removal was demonstrated, i.e. 72% for halloysite (H), and 83% for activated halloysite (HA) for a dose of 2.0 g/L. Adsorption of Cu (II) was consistent with pseudo-second order kinetics. The adsorbents showed a high adsorption capacity at the level of 11.03 mg/g, determined by the Langmuir isotherm model. This model fit well with the experimental data.https://journals.pan.pl/Content/122594/PDF/Archives%20vol%2048%20no1pp75_82.pdfcopperadsorptionsodium alginaterainwaterhalloysite |
| spellingShingle | Anna Marszałek Encapsulation of halloysite with sodium alginate and application in the adsorption of copper from rainwater Archives of Environmental Protection copper adsorption sodium alginate rainwater halloysite |
| title | Encapsulation of halloysite with sodium alginate and application in the adsorption of copper from rainwater |
| title_full | Encapsulation of halloysite with sodium alginate and application in the adsorption of copper from rainwater |
| title_fullStr | Encapsulation of halloysite with sodium alginate and application in the adsorption of copper from rainwater |
| title_full_unstemmed | Encapsulation of halloysite with sodium alginate and application in the adsorption of copper from rainwater |
| title_short | Encapsulation of halloysite with sodium alginate and application in the adsorption of copper from rainwater |
| title_sort | encapsulation of halloysite with sodium alginate and application in the adsorption of copper from rainwater |
| topic | copper adsorption sodium alginate rainwater halloysite |
| url | https://journals.pan.pl/Content/122594/PDF/Archives%20vol%2048%20no1pp75_82.pdf |
| work_keys_str_mv | AT annamarszałek encapsulationofhalloysitewithsodiumalginateandapplicationintheadsorptionofcopperfromrainwater |