TiO<sub>2</sub>-Modified Magnetic Nanoparticles (Fe<sub>3</sub>O<sub>4</sub>) with Antibacterial Properties
This paper presents the synthesis and characteristics of Fe<sub>3</sub>O<sub>4</sub>/C/TiO<sub>2</sub> hybrid magnetic nanomaterials with antibacterial properties. The materials used were obtained using a microwave-assisted two-stage precipitation method. In the f...
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MDPI AG
2022-03-01
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| Online Access: | https://www.mdpi.com/1996-1944/15/5/1863 |
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| author | Agnieszka Wojciechowska Agata Markowska-Szczupak Zofia Lendzion-Bieluń |
| author_facet | Agnieszka Wojciechowska Agata Markowska-Szczupak Zofia Lendzion-Bieluń |
| author_sort | Agnieszka Wojciechowska |
| collection | DOAJ |
| description | This paper presents the synthesis and characteristics of Fe<sub>3</sub>O<sub>4</sub>/C/TiO<sub>2</sub> hybrid magnetic nanomaterials with antibacterial properties. The materials used were obtained using a microwave-assisted two-stage precipitation method. In the first stage, magnetite nanoparticles (Fe<sub>3</sub>O<sub>4</sub>) were prepared with the precipitation method, during which an additional glucose layer was placed on them. Next, the surface of Fe<sub>3</sub>O<sub>4</sub> nanoparticles was covered by TiO<sub>2</sub>. It was observed that the addition of carbon and titanium dioxide caused a decrease in the average size of magnetite crystallites from 15.6 to 9.2 nm. Materials with varying contents of anatase phase were obtained. They were characterized in terms of phase composition, crystallite size, specific surface area, surface charge and the kinds of function groups on the surface. The results show a successful method of synthesizing hybrid magnetic nanoparticles, stable in a solution, with antibacterial properties under direct solar light irradiation. Compared to classical materials based on TiO<sub>2</sub> and used for water disinfection, the obtained photocatalytic nanomaterials have magnetic properties. Owing to this fact, they can be easily removed from water once their activity under direct irradiance in a given process has completed. |
| first_indexed | 2024-03-09T20:32:38Z |
| format | Article |
| id | doaj.art-fd70c4122ddc457e8dea035e00d35e65 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T20:32:38Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-fd70c4122ddc457e8dea035e00d35e652023-11-23T23:20:02ZengMDPI AGMaterials1996-19442022-03-01155186310.3390/ma15051863TiO<sub>2</sub>-Modified Magnetic Nanoparticles (Fe<sub>3</sub>O<sub>4</sub>) with Antibacterial PropertiesAgnieszka Wojciechowska0Agata Markowska-Szczupak1Zofia Lendzion-Bieluń2Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Aleja Piastów 42, 71-065 Szczecin, PolandFaculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Aleja Piastów 42, 71-065 Szczecin, PolandFaculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Aleja Piastów 42, 71-065 Szczecin, PolandThis paper presents the synthesis and characteristics of Fe<sub>3</sub>O<sub>4</sub>/C/TiO<sub>2</sub> hybrid magnetic nanomaterials with antibacterial properties. The materials used were obtained using a microwave-assisted two-stage precipitation method. In the first stage, magnetite nanoparticles (Fe<sub>3</sub>O<sub>4</sub>) were prepared with the precipitation method, during which an additional glucose layer was placed on them. Next, the surface of Fe<sub>3</sub>O<sub>4</sub> nanoparticles was covered by TiO<sub>2</sub>. It was observed that the addition of carbon and titanium dioxide caused a decrease in the average size of magnetite crystallites from 15.6 to 9.2 nm. Materials with varying contents of anatase phase were obtained. They were characterized in terms of phase composition, crystallite size, specific surface area, surface charge and the kinds of function groups on the surface. The results show a successful method of synthesizing hybrid magnetic nanoparticles, stable in a solution, with antibacterial properties under direct solar light irradiation. Compared to classical materials based on TiO<sub>2</sub> and used for water disinfection, the obtained photocatalytic nanomaterials have magnetic properties. Owing to this fact, they can be easily removed from water once their activity under direct irradiance in a given process has completed.https://www.mdpi.com/1996-1944/15/5/1863iron oxidetitanium dioxideantibacterial properties |
| spellingShingle | Agnieszka Wojciechowska Agata Markowska-Szczupak Zofia Lendzion-Bieluń TiO<sub>2</sub>-Modified Magnetic Nanoparticles (Fe<sub>3</sub>O<sub>4</sub>) with Antibacterial Properties Materials iron oxide titanium dioxide antibacterial properties |
| title | TiO<sub>2</sub>-Modified Magnetic Nanoparticles (Fe<sub>3</sub>O<sub>4</sub>) with Antibacterial Properties |
| title_full | TiO<sub>2</sub>-Modified Magnetic Nanoparticles (Fe<sub>3</sub>O<sub>4</sub>) with Antibacterial Properties |
| title_fullStr | TiO<sub>2</sub>-Modified Magnetic Nanoparticles (Fe<sub>3</sub>O<sub>4</sub>) with Antibacterial Properties |
| title_full_unstemmed | TiO<sub>2</sub>-Modified Magnetic Nanoparticles (Fe<sub>3</sub>O<sub>4</sub>) with Antibacterial Properties |
| title_short | TiO<sub>2</sub>-Modified Magnetic Nanoparticles (Fe<sub>3</sub>O<sub>4</sub>) with Antibacterial Properties |
| title_sort | tio sub 2 sub modified magnetic nanoparticles fe sub 3 sub o sub 4 sub with antibacterial properties |
| topic | iron oxide titanium dioxide antibacterial properties |
| url | https://www.mdpi.com/1996-1944/15/5/1863 |
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