Synthesis of polypyrrole-modified Fe3O4/SiO2/TiO2 nanocomposite microspheres and their photocatalytic activity
A polypyrrole-modified Fe _3 O _4 /SiO _2 /TiO _2 composite material was successfully synthesized on the FST surface by in situ polymerization of pyrrole. Structural, morphological and magnetic response of Fe _3 O _4 /SiO _2 /TiO _2 /PPy(FST/PPy) were characterized by transmission electron microscop...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2022-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ac5195 |
| _version_ | 1797746690832203776 |
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| author | Kwang-Hyok Han Yong-Ho Kim Myong-Hak Mun Ju-Hyon Yu Ryong-Huan Han |
| author_facet | Kwang-Hyok Han Yong-Ho Kim Myong-Hak Mun Ju-Hyon Yu Ryong-Huan Han |
| author_sort | Kwang-Hyok Han |
| collection | DOAJ |
| description | A polypyrrole-modified Fe _3 O _4 /SiO _2 /TiO _2 composite material was successfully synthesized on the FST surface by in situ polymerization of pyrrole. Structural, morphological and magnetic response of Fe _3 O _4 /SiO _2 /TiO _2 /PPy(FST/PPy) were characterized by transmission electron microscopy, scanning electron microscopy, X-ray diffraction pattern, Fourier transform infrared spectroscopy and energy-dispersive X-ray spectroscopy, etc. Through SEM images, the crystal sizes of the prepared FST/PPy nanoparticles were determined to be about 110 nm. The catalytic activity of FST/PPy was evaluated by the degree of decomposition of rhodamine B under ultraviolet and visible light, respectively. FST/PPy had the photocatalytic activity under the action of the light: the degradation rate of rhodamine B reached 92.8% and 63.5% after 3 h of UV and Vis light irradiation, respectively. Especially, compared with FST, the degradation rate has shown obvious improvement under the action of Vis light. Furthermore, FST/PPy photocatalyst could be easily recycled using a magnet. |
| first_indexed | 2024-03-12T15:41:28Z |
| format | Article |
| id | doaj.art-af95accc2f964980a4ec6eeda07bc159 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:41:28Z |
| publishDate | 2022-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-af95accc2f964980a4ec6eeda07bc1592023-08-09T15:59:15ZengIOP PublishingMaterials Research Express2053-15912022-01-019202500710.1088/2053-1591/ac5195Synthesis of polypyrrole-modified Fe3O4/SiO2/TiO2 nanocomposite microspheres and their photocatalytic activityKwang-Hyok Han0https://orcid.org/0000-0002-9080-9756Yong-Ho Kim1https://orcid.org/0000-0002-7245-4904Myong-Hak Mun2Ju-Hyon Yu3Ryong-Huan Han4Department of Electronics, Kim Chaek University of Technology , Pyongyang 999093, Democratic People’s Republic of KoreaDepartment of Chemistry, University of Science , Pyongyang 999091, Democratic People’s Republic of KoreaDepartment of Mechanics, KIM IL SUNG University , Pyongyang 999092, Democratic People’s Republic of KoreaDepartment of Chemistry, University of Science , Pyongyang 999091, Democratic People’s Republic of KoreaDepartment of Electronics, Kim Chaek University of Technology , Pyongyang 999093, Democratic People’s Republic of KoreaA polypyrrole-modified Fe _3 O _4 /SiO _2 /TiO _2 composite material was successfully synthesized on the FST surface by in situ polymerization of pyrrole. Structural, morphological and magnetic response of Fe _3 O _4 /SiO _2 /TiO _2 /PPy(FST/PPy) were characterized by transmission electron microscopy, scanning electron microscopy, X-ray diffraction pattern, Fourier transform infrared spectroscopy and energy-dispersive X-ray spectroscopy, etc. Through SEM images, the crystal sizes of the prepared FST/PPy nanoparticles were determined to be about 110 nm. The catalytic activity of FST/PPy was evaluated by the degree of decomposition of rhodamine B under ultraviolet and visible light, respectively. FST/PPy had the photocatalytic activity under the action of the light: the degradation rate of rhodamine B reached 92.8% and 63.5% after 3 h of UV and Vis light irradiation, respectively. Especially, compared with FST, the degradation rate has shown obvious improvement under the action of Vis light. Furthermore, FST/PPy photocatalyst could be easily recycled using a magnet.https://doi.org/10.1088/2053-1591/ac5195photocatalystpolypyrrolemagnetic nanoparticlescore-shelltitanium dioxide |
| spellingShingle | Kwang-Hyok Han Yong-Ho Kim Myong-Hak Mun Ju-Hyon Yu Ryong-Huan Han Synthesis of polypyrrole-modified Fe3O4/SiO2/TiO2 nanocomposite microspheres and their photocatalytic activity Materials Research Express photocatalyst polypyrrole magnetic nanoparticles core-shell titanium dioxide |
| title | Synthesis of polypyrrole-modified Fe3O4/SiO2/TiO2 nanocomposite microspheres and their photocatalytic activity |
| title_full | Synthesis of polypyrrole-modified Fe3O4/SiO2/TiO2 nanocomposite microspheres and their photocatalytic activity |
| title_fullStr | Synthesis of polypyrrole-modified Fe3O4/SiO2/TiO2 nanocomposite microspheres and their photocatalytic activity |
| title_full_unstemmed | Synthesis of polypyrrole-modified Fe3O4/SiO2/TiO2 nanocomposite microspheres and their photocatalytic activity |
| title_short | Synthesis of polypyrrole-modified Fe3O4/SiO2/TiO2 nanocomposite microspheres and their photocatalytic activity |
| title_sort | synthesis of polypyrrole modified fe3o4 sio2 tio2 nanocomposite microspheres and their photocatalytic activity |
| topic | photocatalyst polypyrrole magnetic nanoparticles core-shell titanium dioxide |
| url | https://doi.org/10.1088/2053-1591/ac5195 |
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