Synthesis of magnetic photocatalyst and sensitization properties of polypyrrole
In order to solve the difficulty of separation and recycling of TiO2 and its lower utilization of solar radiation, a new type of TiO2 photocatalyst, which was sensitized by polypyrrole (PPy) and carried by self-made modified Fe3O4, named PPy-TiO2/M-Fe3O4, was fabricated successfully by combining sus...
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doaj-f64cb59bd4934ac3bd9c67f1718c7bfa2021-09-05T14:00:30ZengDe GruyterScience and Engineering of Composite Materials0792-12332191-03592016-05-0123326927510.1515/secm-2014-0035Synthesis of magnetic photocatalyst and sensitization properties of polypyrroleYang Xiaofeng0Zhang Lei1Chen Zhiping2Jing Hongxia3Chen Yuzhe4Li Qiaoling5Department of Chemistry, School of Science, North University of China, Taiyuan 030051, P.R. ChinaDepartment of Chemistry, School of Science, North University of China, Taiyuan 030051, P.R. ChinaDepartment of Chemistry, School of Science, North University of China, Taiyuan 030051, P.R. ChinaDepartment of Chemistry, School of Science, North University of China, Taiyuan 030051, P.R. ChinaTechnical Institute of Physics and Chemistry, CAS, Beijing 100190, P.R. ChinaDepartment of Chemistry, School of Science, North University of China, Taiyuan 030051, P.R. ChinaIn order to solve the difficulty of separation and recycling of TiO2 and its lower utilization of solar radiation, a new type of TiO2 photocatalyst, which was sensitized by polypyrrole (PPy) and carried by self-made modified Fe3O4, named PPy-TiO2/M-Fe3O4, was fabricated successfully by combining suspension dispersion and in situ polymerization. The structure of photocatalyst and Fe3O4 was characterized using X-ray diffraction, the Fourier transmission infrared spectrometer, and scanning electron microscopy. Light response property was tested by ultraviolet-visible diffuse reflectance spectra. Photocatalytic activity was evaluated with methyl orange as the degradation substance under different light radiation. Magnetic recovery property was investigated by using vibrating sample magnetometer and gravimetric analysis methods. The results showed that due to sensitization of PPy, the light response scope of PPy-TiO2/M-Fe3O4 was broadened to 451 nm and the degradation rate of methyl orange had been increased by 32.5% under the same conditions. Meanwhile, the recovery rate of PPy-TiO2/M-Fe3O4 remained above 97.9% after five cycles.https://doi.org/10.1515/secm-2014-0035fe3o4magnetic photocatalystspolypyrrolesensitizedtio2 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yang Xiaofeng Zhang Lei Chen Zhiping Jing Hongxia Chen Yuzhe Li Qiaoling |
spellingShingle |
Yang Xiaofeng Zhang Lei Chen Zhiping Jing Hongxia Chen Yuzhe Li Qiaoling Synthesis of magnetic photocatalyst and sensitization properties of polypyrrole Science and Engineering of Composite Materials fe3o4 magnetic photocatalysts polypyrrole sensitized tio2 |
author_facet |
Yang Xiaofeng Zhang Lei Chen Zhiping Jing Hongxia Chen Yuzhe Li Qiaoling |
author_sort |
Yang Xiaofeng |
title |
Synthesis of magnetic photocatalyst and sensitization properties of polypyrrole |
title_short |
Synthesis of magnetic photocatalyst and sensitization properties of polypyrrole |
title_full |
Synthesis of magnetic photocatalyst and sensitization properties of polypyrrole |
title_fullStr |
Synthesis of magnetic photocatalyst and sensitization properties of polypyrrole |
title_full_unstemmed |
Synthesis of magnetic photocatalyst and sensitization properties of polypyrrole |
title_sort |
synthesis of magnetic photocatalyst and sensitization properties of polypyrrole |
publisher |
De Gruyter |
series |
Science and Engineering of Composite Materials |
issn |
0792-1233 2191-0359 |
publishDate |
2016-05-01 |
description |
In order to solve the difficulty of separation and recycling of TiO2 and its lower utilization of solar radiation, a new type of TiO2 photocatalyst, which was sensitized by polypyrrole (PPy) and carried by self-made modified Fe3O4, named PPy-TiO2/M-Fe3O4, was fabricated successfully by combining suspension dispersion and in situ polymerization. The structure of photocatalyst and Fe3O4 was characterized using X-ray diffraction, the Fourier transmission infrared spectrometer, and scanning electron microscopy. Light response property was tested by ultraviolet-visible diffuse reflectance spectra. Photocatalytic activity was evaluated with methyl orange as the degradation substance under different light radiation. Magnetic recovery property was investigated by using vibrating sample magnetometer and gravimetric analysis methods. The results showed that due to sensitization of PPy, the light response scope of PPy-TiO2/M-Fe3O4 was broadened to 451 nm and the degradation rate of methyl orange had been increased by 32.5% under the same conditions. Meanwhile, the recovery rate of PPy-TiO2/M-Fe3O4 remained above 97.9% after five cycles. |
topic |
fe3o4 magnetic photocatalysts polypyrrole sensitized tio2 |
url |
https://doi.org/10.1515/secm-2014-0035 |
work_keys_str_mv |
AT yangxiaofeng synthesisofmagneticphotocatalystandsensitizationpropertiesofpolypyrrole AT zhanglei synthesisofmagneticphotocatalystandsensitizationpropertiesofpolypyrrole AT chenzhiping synthesisofmagneticphotocatalystandsensitizationpropertiesofpolypyrrole AT jinghongxia synthesisofmagneticphotocatalystandsensitizationpropertiesofpolypyrrole AT chenyuzhe synthesisofmagneticphotocatalystandsensitizationpropertiesofpolypyrrole AT liqiaoling synthesisofmagneticphotocatalystandsensitizationpropertiesofpolypyrrole |
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1717811814631211008 |