Synthesis and characterization of PTP/K[Fe(CN)3(OH)(en)] nanocomposite: study of thermal, electrical and photocatalytic properties
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- 作者：Syed Kazim Moosvi ; Kowsar Majid…
- 刊名：Journal of Materials Science: Materials in Electronics
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：27
- 期：7
- 页码：6891-6901
- 全文大小：1,835 KB
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Optical and Electronic Materials
Characterization and Evaluation Materials - 出版者：Springer New York
- ISSN：1573-482X
- 卷排序：27
文摘
Nanocomposite of polythiophene (PTP) with the photoadduct of potassium hexacyanoferrate(III) and ethylenediamine was synthesised via in situ oxidative chemical polymerisation. Photoadduct was synthesised by photoirradiation followed by substitution with ethylenediamine ligand using Osram photo lamp. The successful synthesis of photoadduct was supported by elemental analyser, UV–Vis and FTIR. From elemental analysis, the empirical formula assigned to the photoadduct was found to be K[Fe(CN)3(OH)(en)]. Photoadduct obtained was then milled in high energy ball mill to reduce it to nano size, which is confirmed from X-ray diffraction (XRD). Nanocomposite of PTP with photoadduct was then prepared by oxidative chemical polymerization using FeCl3 as oxidant. The successful synthesis of nanocomposite was confirmed from FTIR, XRD, SEM and TEM. TGA data confirmed the higher thermal stability of nanocomposite as compared to pure PTP. From dielectric studies, an appreciable high value of dielectric constant (2.7 × 105 at 100 Hz) and ac conductivity (9.6 × 108 S/m at 700 kHz) of nanocomposite was obtained. The high value of dielectric constant indicates the possible application of nanocomposite in charge storage devices. The photocatalytic activity of the materials was studied against the methyl orange dye under UV–Vis light and nanocomposite showed efficient photocatalytic activity (54 % degradation after 2 h) than pure PTP. Thus the nanocomposite synthesised can be used as a photocatalytic material for water purification.