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Preparation of a PANI/ZnO Composite for Efficient Photocatalytic Degradation of Acid Blue
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Zeitschriftentitel: | Polymers |
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Personen und Körperschaften: | , , , , |
In: | Polymers, 10, 2018, 9, S. 940 |
Format: | E-Article |
Sprache: | Englisch |
veröffentlicht: |
MDPI AG
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author_facet |
Gilja, Vanja Vrban, Ivan Mandić, Vilko Žic, Mark Hrnjak-Murgić, Zlata Gilja, Vanja Vrban, Ivan Mandić, Vilko Žic, Mark Hrnjak-Murgić, Zlata |
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author |
Gilja, Vanja Vrban, Ivan Mandić, Vilko Žic, Mark Hrnjak-Murgić, Zlata |
spellingShingle |
Gilja, Vanja Vrban, Ivan Mandić, Vilko Žic, Mark Hrnjak-Murgić, Zlata Polymers Preparation of a PANI/ZnO Composite for Efficient Photocatalytic Degradation of Acid Blue Polymers and Plastics General Chemistry |
author_sort |
gilja, vanja |
spelling |
Gilja, Vanja Vrban, Ivan Mandić, Vilko Žic, Mark Hrnjak-Murgić, Zlata 2073-4360 MDPI AG Polymers and Plastics General Chemistry http://dx.doi.org/10.3390/polym10090940 <jats:p>Polyaniline/zinc oxide (PANI/ZnO) composite photocatalysts were prepared from neutral media by in situ chemical oxidation of aniline (ANI) in the presence of different amounts of diethylene glycol (DEG). The PANI/ZnO composite photocatalysts were synthesized to efficiently remove organic dye (acid blue, AB25) from model wastewater. The PANI/ZnO composite photocatalysts were studied with the intention of efficient removal of organic dye (acid blue, AB25) from wastewater to obtain low-cost heterogeneous catalysts that offer high catalytic activity and stability. The conductive PANI polymer, which absorbs Vis irradiation, was used in this work as ZnO absorbs only ultraviolet (UV) irradiation; thus, the composite photocatalysts’ activity was broadened into the Vis region. Characterization of the composite photocatalysts was done by Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, scanning electron microscopy, electric conductivity, UV-Vis spectroscopy, and by specific surface area (SBET) measurements. The composites’ photocatalytic activity under solar irradiation was validated by monitoring degradation of the AB25 dye. This study presented that it was possible both to prepare PANI and to prevent ZnO dissolution if in situ polymerization starts from neutral media with the addition of DEG. Additionally, efficient removal of AB25 dye, about 90% in 60 min, was achieved. The first-order rate constants of the photodegradation of AB25 by PANI/ZnO 0.02/0.024/0.04 DEG (and pure ZnO)) were computed to be 0.0272/0.0281/0.0325 (and 0.0062) min−1, indicating that the morphology and surface of the photocatalysts have significantly influenced the catalytic activity.</jats:p> Preparation of a PANI/ZnO Composite for Efficient Photocatalytic Degradation of Acid Blue Polymers |
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10.3390/polym10090940 |
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Chemie und Pharmazie |
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title |
Preparation of a PANI/ZnO Composite for Efficient Photocatalytic Degradation of Acid Blue |
title_unstemmed |
Preparation of a PANI/ZnO Composite for Efficient Photocatalytic Degradation of Acid Blue |
title_full |
Preparation of a PANI/ZnO Composite for Efficient Photocatalytic Degradation of Acid Blue |
title_fullStr |
Preparation of a PANI/ZnO Composite for Efficient Photocatalytic Degradation of Acid Blue |
title_full_unstemmed |
Preparation of a PANI/ZnO Composite for Efficient Photocatalytic Degradation of Acid Blue |
title_short |
Preparation of a PANI/ZnO Composite for Efficient Photocatalytic Degradation of Acid Blue |
title_sort |
preparation of a pani/zno composite for efficient photocatalytic degradation of acid blue |
topic |
Polymers and Plastics General Chemistry |
url |
http://dx.doi.org/10.3390/polym10090940 |
publishDate |
2018 |
physical |
940 |
description |
<jats:p>Polyaniline/zinc oxide (PANI/ZnO) composite photocatalysts were prepared from neutral media by in situ chemical oxidation of aniline (ANI) in the presence of different amounts of diethylene glycol (DEG). The PANI/ZnO composite photocatalysts were synthesized to efficiently remove organic dye (acid blue, AB25) from model wastewater. The PANI/ZnO composite photocatalysts were studied with the intention of efficient removal of organic dye (acid blue, AB25) from wastewater to obtain low-cost heterogeneous catalysts that offer high catalytic activity and stability. The conductive PANI polymer, which absorbs Vis irradiation, was used in this work as ZnO absorbs only ultraviolet (UV) irradiation; thus, the composite photocatalysts’ activity was broadened into the Vis region. Characterization of the composite photocatalysts was done by Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, scanning electron microscopy, electric conductivity, UV-Vis spectroscopy, and by specific surface area (SBET) measurements. The composites’ photocatalytic activity under solar irradiation was validated by monitoring degradation of the AB25 dye. This study presented that it was possible both to prepare PANI and to prevent ZnO dissolution if in situ polymerization starts from neutral media with the addition of DEG. Additionally, efficient removal of AB25 dye, about 90% in 60 min, was achieved. The first-order rate constants of the photodegradation of AB25 by PANI/ZnO 0.02/0.024/0.04 DEG (and pure ZnO)) were computed to be 0.0272/0.0281/0.0325 (and 0.0062) min−1, indicating that the morphology and surface of the photocatalysts have significantly influenced the catalytic activity.</jats:p> |
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author | Gilja, Vanja, Vrban, Ivan, Mandić, Vilko, Žic, Mark, Hrnjak-Murgić, Zlata |
author_facet | Gilja, Vanja, Vrban, Ivan, Mandić, Vilko, Žic, Mark, Hrnjak-Murgić, Zlata, Gilja, Vanja, Vrban, Ivan, Mandić, Vilko, Žic, Mark, Hrnjak-Murgić, Zlata |
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description | <jats:p>Polyaniline/zinc oxide (PANI/ZnO) composite photocatalysts were prepared from neutral media by in situ chemical oxidation of aniline (ANI) in the presence of different amounts of diethylene glycol (DEG). The PANI/ZnO composite photocatalysts were synthesized to efficiently remove organic dye (acid blue, AB25) from model wastewater. The PANI/ZnO composite photocatalysts were studied with the intention of efficient removal of organic dye (acid blue, AB25) from wastewater to obtain low-cost heterogeneous catalysts that offer high catalytic activity and stability. The conductive PANI polymer, which absorbs Vis irradiation, was used in this work as ZnO absorbs only ultraviolet (UV) irradiation; thus, the composite photocatalysts’ activity was broadened into the Vis region. Characterization of the composite photocatalysts was done by Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, scanning electron microscopy, electric conductivity, UV-Vis spectroscopy, and by specific surface area (SBET) measurements. The composites’ photocatalytic activity under solar irradiation was validated by monitoring degradation of the AB25 dye. This study presented that it was possible both to prepare PANI and to prevent ZnO dissolution if in situ polymerization starts from neutral media with the addition of DEG. Additionally, efficient removal of AB25 dye, about 90% in 60 min, was achieved. The first-order rate constants of the photodegradation of AB25 by PANI/ZnO 0.02/0.024/0.04 DEG (and pure ZnO)) were computed to be 0.0272/0.0281/0.0325 (and 0.0062) min−1, indicating that the morphology and surface of the photocatalysts have significantly influenced the catalytic activity.</jats:p> |
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spelling | Gilja, Vanja Vrban, Ivan Mandić, Vilko Žic, Mark Hrnjak-Murgić, Zlata 2073-4360 MDPI AG Polymers and Plastics General Chemistry http://dx.doi.org/10.3390/polym10090940 <jats:p>Polyaniline/zinc oxide (PANI/ZnO) composite photocatalysts were prepared from neutral media by in situ chemical oxidation of aniline (ANI) in the presence of different amounts of diethylene glycol (DEG). The PANI/ZnO composite photocatalysts were synthesized to efficiently remove organic dye (acid blue, AB25) from model wastewater. The PANI/ZnO composite photocatalysts were studied with the intention of efficient removal of organic dye (acid blue, AB25) from wastewater to obtain low-cost heterogeneous catalysts that offer high catalytic activity and stability. The conductive PANI polymer, which absorbs Vis irradiation, was used in this work as ZnO absorbs only ultraviolet (UV) irradiation; thus, the composite photocatalysts’ activity was broadened into the Vis region. Characterization of the composite photocatalysts was done by Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, scanning electron microscopy, electric conductivity, UV-Vis spectroscopy, and by specific surface area (SBET) measurements. The composites’ photocatalytic activity under solar irradiation was validated by monitoring degradation of the AB25 dye. This study presented that it was possible both to prepare PANI and to prevent ZnO dissolution if in situ polymerization starts from neutral media with the addition of DEG. Additionally, efficient removal of AB25 dye, about 90% in 60 min, was achieved. The first-order rate constants of the photodegradation of AB25 by PANI/ZnO 0.02/0.024/0.04 DEG (and pure ZnO)) were computed to be 0.0272/0.0281/0.0325 (and 0.0062) min−1, indicating that the morphology and surface of the photocatalysts have significantly influenced the catalytic activity.</jats:p> Preparation of a PANI/ZnO Composite for Efficient Photocatalytic Degradation of Acid Blue Polymers |
spellingShingle | Gilja, Vanja, Vrban, Ivan, Mandić, Vilko, Žic, Mark, Hrnjak-Murgić, Zlata, Polymers, Preparation of a PANI/ZnO Composite for Efficient Photocatalytic Degradation of Acid Blue, Polymers and Plastics, General Chemistry |
title | Preparation of a PANI/ZnO Composite for Efficient Photocatalytic Degradation of Acid Blue |
title_full | Preparation of a PANI/ZnO Composite for Efficient Photocatalytic Degradation of Acid Blue |
title_fullStr | Preparation of a PANI/ZnO Composite for Efficient Photocatalytic Degradation of Acid Blue |
title_full_unstemmed | Preparation of a PANI/ZnO Composite for Efficient Photocatalytic Degradation of Acid Blue |
title_short | Preparation of a PANI/ZnO Composite for Efficient Photocatalytic Degradation of Acid Blue |
title_sort | preparation of a pani/zno composite for efficient photocatalytic degradation of acid blue |
title_unstemmed | Preparation of a PANI/ZnO Composite for Efficient Photocatalytic Degradation of Acid Blue |
topic | Polymers and Plastics, General Chemistry |
url | http://dx.doi.org/10.3390/polym10090940 |