NDLI: Characterization and Photocatalytic Activity of $TiO_{2}(rod)-SiO_{2}$-Polyaniline Nanocomposite

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Characterization and Photocatalytic Activity of $TiO_{2}(rod)-SiO_{2}$-Polyaniline Nanocomposite

Content Provider	Directory of Open Access Journals (DOAJ)
Author	Sri Wahyuni Eko Sri Kunarti Respati Tri Swasono Indriana Kartini
Abstract	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.
Related Links	https://jurnal.ugm.ac.id/ijc/article/view/22550
ISSN	14119420
e-ISSN	24601578
DOI	10.22146/ijc.22550
Journal	Indonesian Journal of Chemistry
Issue Number	2
Volume Number	18
Language	English
Publisher	Department of Chemistry, Universitas Gadjah Mada
Publisher Date	2018-01-01
Publisher Place	Indonesia
Access Restriction	Open
Subject Keyword	Chemistry Tio2(rod)-sio2 Composite Pani Photocatalytic
Content Type	Text
Resource Type	Article
Subject	Chemistry

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