The Development of Alginate/Ag NPs/Caffeic Acid Composite Membranes as Adsorbents for Water Purification
Since the water pollution problem still affects the environmental system and human health, the need to develop innovative membranes has become imperious. Lately, researchers have focused on developing novel materials to help diminish the contamination problem. The aim of present research was to obta...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-06-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/13/6/591 |
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| author | Angela Spoială Cornelia-Ioana Ilie Georgiana Dolete Gabriela Petrișor Roxana-Doina Trușcă Ludmila Motelica Denisa Ficai Anton Ficai Ovidiu-Cristian Oprea Mara-Lia Dițu |
| author_facet | Angela Spoială Cornelia-Ioana Ilie Georgiana Dolete Gabriela Petrișor Roxana-Doina Trușcă Ludmila Motelica Denisa Ficai Anton Ficai Ovidiu-Cristian Oprea Mara-Lia Dițu |
| author_sort | Angela Spoială |
| collection | DOAJ |
| description | Since the water pollution problem still affects the environmental system and human health, the need to develop innovative membranes has become imperious. Lately, researchers have focused on developing novel materials to help diminish the contamination problem. The aim of present research was to obtain innovative adsorbent composite membranes based on a biodegradable polymer, alginate, to remove toxic pollutants. Of all pollutants, lead was chosen due to its high toxicity. The composite membranes were successfully obtained through a direct casting method. The silver nanoparticles (Ag NPs) and caffeic acid (CA) from the composite membranes were kept at low concentrations, which proved enough to bestow antimicrobial activity to the alginate membrane. The obtained composite membranes were characterised by Fourier transform infrared spectroscopy and microscopy (FTIR), scanning electron microscopy (SEM), and thermogravimetric analysis (TG-DSC). Swelling behaviour, lead ion (Pb<sup>2+</sup>) removal capacity, regeneration and reusability were also determined. Further, the antimicrobial activity was tested against selected pathogenic strains (<i>S. aureus</i>, <i>E. faecalis</i> sp., <i>P. aeruginosa</i>, <i>E. coli</i> and <i>C. albicans</i>). The presence of Ag NPs and CA improves the antimicrobial activity of the newly developed membranes. Overall, the composite membranes are suitable for complex water treatment (removal of heavy metal ions and antimicrobial treatment). |
| first_indexed | 2024-03-11T02:10:38Z |
| format | Article |
| id | doaj.art-a517c84d243c4866a6938a124bbebcfc |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-11T02:10:38Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-a517c84d243c4866a6938a124bbebcfc2023-11-18T11:33:45ZengMDPI AGMembranes2077-03752023-06-0113659110.3390/membranes13060591The Development of Alginate/Ag NPs/Caffeic Acid Composite Membranes as Adsorbents for Water PurificationAngela Spoială0Cornelia-Ioana Ilie1Georgiana Dolete2Gabriela Petrișor3Roxana-Doina Trușcă4Ludmila Motelica5Denisa Ficai6Anton Ficai7Ovidiu-Cristian Oprea8Mara-Lia Dițu9Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 1-7 Gh Polizu Street, 011061 Bucharest, RomaniaDepartment of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 1-7 Gh Polizu Street, 011061 Bucharest, RomaniaDepartment of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 1-7 Gh Polizu Street, 011061 Bucharest, RomaniaDepartment of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 1-7 Gh Polizu Street, 011061 Bucharest, RomaniaDepartment of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 1-7 Gh Polizu Street, 011061 Bucharest, RomaniaDepartment of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 1-7 Gh Polizu Street, 011061 Bucharest, RomaniaNational Centre for Micro and Nanomaterials & National Centre for Food Safety, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, RomaniaDepartment of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, 1-7 Gh Polizu Street, 011061 Bucharest, RomaniaNational Centre for Micro and Nanomaterials & National Centre for Food Safety, Faculty of Chemical Engineering and Biotechnologies, University Politehnica of Bucharest, Spl. Independentei 313, 060042 Bucharest, RomaniaFaculty of Biology, University of Bucharest, 1-3 Aleea Portocalelor, 060101 Bucharest, RomaniaSince the water pollution problem still affects the environmental system and human health, the need to develop innovative membranes has become imperious. Lately, researchers have focused on developing novel materials to help diminish the contamination problem. The aim of present research was to obtain innovative adsorbent composite membranes based on a biodegradable polymer, alginate, to remove toxic pollutants. Of all pollutants, lead was chosen due to its high toxicity. The composite membranes were successfully obtained through a direct casting method. The silver nanoparticles (Ag NPs) and caffeic acid (CA) from the composite membranes were kept at low concentrations, which proved enough to bestow antimicrobial activity to the alginate membrane. The obtained composite membranes were characterised by Fourier transform infrared spectroscopy and microscopy (FTIR), scanning electron microscopy (SEM), and thermogravimetric analysis (TG-DSC). Swelling behaviour, lead ion (Pb<sup>2+</sup>) removal capacity, regeneration and reusability were also determined. Further, the antimicrobial activity was tested against selected pathogenic strains (<i>S. aureus</i>, <i>E. faecalis</i> sp., <i>P. aeruginosa</i>, <i>E. coli</i> and <i>C. albicans</i>). The presence of Ag NPs and CA improves the antimicrobial activity of the newly developed membranes. Overall, the composite membranes are suitable for complex water treatment (removal of heavy metal ions and antimicrobial treatment).https://www.mdpi.com/2077-0375/13/6/591silver nanoparticlesalginatecaffeic acidantibacterialantifungalantimicrobial |
| spellingShingle | Angela Spoială Cornelia-Ioana Ilie Georgiana Dolete Gabriela Petrișor Roxana-Doina Trușcă Ludmila Motelica Denisa Ficai Anton Ficai Ovidiu-Cristian Oprea Mara-Lia Dițu The Development of Alginate/Ag NPs/Caffeic Acid Composite Membranes as Adsorbents for Water Purification Membranes silver nanoparticles alginate caffeic acid antibacterial antifungal antimicrobial |
| title | The Development of Alginate/Ag NPs/Caffeic Acid Composite Membranes as Adsorbents for Water Purification |
| title_full | The Development of Alginate/Ag NPs/Caffeic Acid Composite Membranes as Adsorbents for Water Purification |
| title_fullStr | The Development of Alginate/Ag NPs/Caffeic Acid Composite Membranes as Adsorbents for Water Purification |
| title_full_unstemmed | The Development of Alginate/Ag NPs/Caffeic Acid Composite Membranes as Adsorbents for Water Purification |
| title_short | The Development of Alginate/Ag NPs/Caffeic Acid Composite Membranes as Adsorbents for Water Purification |
| title_sort | development of alginate ag nps caffeic acid composite membranes as adsorbents for water purification |
| topic | silver nanoparticles alginate caffeic acid antibacterial antifungal antimicrobial |
| url | https://www.mdpi.com/2077-0375/13/6/591 |
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