Polyaniline Microtubes with a Hexagonal Cross-Section and pH-Sensitive Fluorescence Properties
✍ Scribed by Zhaoyuan Liu; Ying Zhu; Liang Wang; Chunmei Ding; Nü Wang; Meixiang Wan; Lei Jiang
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 570 KB
- Volume
- 32
- Category
- Article
- ISSN
- 1022-1336
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✦ Synopsis
Abstract
Polyaniline (PANI) microtubes with a hexagonal cross‐section are successfully synthesized by a self‐assembly process in the presence of 8‐hydroxyquinoline‐5‐sulfonic acid (HQS) as a dopant and FeCl~3~ as an oxidant. The wall thickness of the PANI/HQS microtubes can be adjusted by the content of the oxidant. It is proposed that the aniline/HQS salts serve as a hard template for the formation of the hexagonal‐cross‐section microtubes. Moreover, PANI/HQS microtubes combined with ZnSO~4~ show pH‐dependent fluorescence. PANI hexagonal‐cross‐section microtubes combined with a pH‐sensitive fluorescence may promise potential applications in fields such as chemical sensors and confined reaction vessels.
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