Characterization and Photocatalytic Activity of TiO<sub>2</sub>(rod)-SiO<sub>2</sub>-Polyaniline Nanocomposite
A study of TiO2(rod)-SiO2 composites coated with polyaniline (PANI) has been performed. PANI was synthesized through in-situ polymerization of aniline at various concentration (0.0137, 0.0274, and 0.0411 M) on the composite under acidic condition. PANI was confirmed by the appearance of C=N, C=C vib...
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doaj-5c5ba0b64c1a4c4c859191a1abc0fa6a2020-11-24T21:52:40ZengUniversitas Gadjah MadaIndonesian Journal of Chemistry1411-94202460-15782018-05-0118232133010.22146/ijc.2255021116Characterization and Photocatalytic Activity of TiO<sub>2</sub>(rod)-SiO<sub>2</sub>-Polyaniline NanocompositeSri Wahyuni0Eko Sri Kunarti1Respati Tri Swasono2Indriana Kartini3Department of Chemistry, Universitas Negeri Semarang, Jl. Raya Sekaran-Gunungpati, SemarangDepartment of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281A study of TiO2(rod)-SiO2 composites coated with polyaniline (PANI) has been performed. PANI was synthesized through in-situ polymerization of aniline at various concentration (0.0137, 0.0274, and 0.0411 M) on the composite under acidic condition. PANI was confirmed by the appearance of C=N, C=C vibrations and the redshift of the band-gap from 3.14 eV for the TiO2(rod)-SiO2 into 3.0 eV for the TSP01 composite. It is also shown that the polymerization does not change the crystal structure of TiO2(rod)-SiO2 as confirmed by the XRD pattern. The TEM image shows a mixed structure of SiO2 coated by TiO2(rod)-PANI layers and the oxides coated by PANI layers. Therefore, the surface area of the resulted TiO2(rod) and the composites did not change significantly. The T TiO2(rod)-SiO2-PANI composite give small improvement under visible irradiation from 20.25 to 25.59% (around 5% from the bulk of TiO2(rod)) and from 25.03 to 25.59% (around 2% from TiO2(rod)-SiO2 composite). The mixed structure of the composites, as well as the formation of excessive layers of PANI, are possibly the case for the low photoactivity. Further improvement to obtain a core-shell structure with a thin layer of PANI is still sought.https://jurnal.ugm.ac.id/ijc/article/view/22550TiO2(rod)-SiO2compositePANIphotocatalytic |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Sri Wahyuni Eko Sri Kunarti Respati Tri Swasono Indriana Kartini |
spellingShingle |
Sri Wahyuni Eko Sri Kunarti Respati Tri Swasono Indriana Kartini Characterization and Photocatalytic Activity of TiO<sub>2</sub>(rod)-SiO<sub>2</sub>-Polyaniline Nanocomposite Indonesian Journal of Chemistry TiO2(rod)-SiO2 composite PANI photocatalytic |
author_facet |
Sri Wahyuni Eko Sri Kunarti Respati Tri Swasono Indriana Kartini |
author_sort |
Sri Wahyuni |
title |
Characterization and Photocatalytic Activity of TiO<sub>2</sub>(rod)-SiO<sub>2</sub>-Polyaniline Nanocomposite |
title_short |
Characterization and Photocatalytic Activity of TiO<sub>2</sub>(rod)-SiO<sub>2</sub>-Polyaniline Nanocomposite |
title_full |
Characterization and Photocatalytic Activity of TiO<sub>2</sub>(rod)-SiO<sub>2</sub>-Polyaniline Nanocomposite |
title_fullStr |
Characterization and Photocatalytic Activity of TiO<sub>2</sub>(rod)-SiO<sub>2</sub>-Polyaniline Nanocomposite |
title_full_unstemmed |
Characterization and Photocatalytic Activity of TiO<sub>2</sub>(rod)-SiO<sub>2</sub>-Polyaniline Nanocomposite |
title_sort |
characterization and photocatalytic activity of tio<sub>2</sub>(rod)-sio<sub>2</sub>-polyaniline nanocomposite |
publisher |
Universitas Gadjah Mada |
series |
Indonesian Journal of Chemistry |
issn |
1411-9420 2460-1578 |
publishDate |
2018-05-01 |
description |
A study of TiO2(rod)-SiO2 composites coated with polyaniline (PANI) has been performed. PANI was synthesized through in-situ polymerization of aniline at various concentration (0.0137, 0.0274, and 0.0411 M) on the composite under acidic condition. PANI was confirmed by the appearance of C=N, C=C vibrations and the redshift of the band-gap from 3.14 eV for the TiO2(rod)-SiO2 into 3.0 eV for the TSP01 composite. It is also shown that the polymerization does not change the crystal structure of TiO2(rod)-SiO2 as confirmed by the XRD pattern. The TEM image shows a mixed structure of SiO2 coated by TiO2(rod)-PANI layers and the oxides coated by PANI layers. Therefore, the surface area of the resulted TiO2(rod) and the composites did not change significantly. The T TiO2(rod)-SiO2-PANI composite give small improvement under visible irradiation from 20.25 to 25.59% (around 5% from the bulk of TiO2(rod)) and from 25.03 to 25.59% (around 2% from TiO2(rod)-SiO2 composite). The mixed structure of the composites, as well as the formation of excessive layers of PANI, are possibly the case for the low photoactivity. Further improvement to obtain a core-shell structure with a thin layer of PANI is still sought. |
topic |
TiO2(rod)-SiO2 composite PANI photocatalytic |
url |
https://jurnal.ugm.ac.id/ijc/article/view/22550 |
work_keys_str_mv |
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