通过等离子体-液体相互作用增强TiO₂纳米颗粒在TiO₂/PEDOT:PSS混合纳米复合材料中的分散性。

Enhanced Dispersion of TiO2 Nanoparticles in a TiO2/PEDOT:PSS Hybrid Nanocomposite via Plasma-Liquid Interactions.

作者信息

Liu Yazi, Sun Dan, Askari Sadegh, Patel Jenish, Macias-Montero Manuel, Mitra Somak, Zhang Richao, Lin Wen-Feng, Mariotti Davide, Maguire Paul

机构信息

School of Chemistry and Life Science, Nanjing University Jinling College, Nanjing 210089, PR China.

Department of Chemical Engineering, Curtin University, G.P.O. Box U1987, Perth, Western Australia 6845, Australia.

出版信息

Sci Rep. 2015 Oct 26;5:15765. doi: 10.1038/srep15765.

DOI:10.1038/srep15765

PMID:26497265

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4620561/

Abstract

A facile method to synthesize a TiO2/PEDOT:PSS hybrid nanocomposite material in aqueous solution through direct current (DC) plasma processing at atmospheric pressure and room temperature has been demonstrated. The dispersion of the TiO2 nanoparticles is enhanced and TiO2/polymer hybrid nanoparticles with a distinct core shell structure have been obtained. Increased electrical conductivity was observed for the plasma treated TiO2/PEDOT:PSS nanocomposite. The improvement in nanocomposite properties is due to the enhanced dispersion and stability in liquid polymer of microplasma treated TiO2 nanoparticles. Both plasma induced surface charge and nanoparticle surface termination with specific plasma chemical species are proposed to provide an enhanced barrier to nanoparticle agglomeration and promote nanoparticle-polymer binding.

摘要

已证明一种在大气压和室温下通过直流（DC）等离子体处理在水溶液中合成TiO2/PEDOT:PSS杂化纳米复合材料的简便方法。TiO2纳米颗粒的分散性得到增强，并获得了具有独特核壳结构的TiO2/聚合物杂化纳米颗粒。观察到经等离子体处理的TiO2/PEDOT:PSS纳米复合材料的电导率有所提高。纳米复合材料性能的改善归因于微等离子体处理的TiO2纳米颗粒在液体聚合物中的分散性和稳定性增强。有人提出，等离子体诱导的表面电荷和特定等离子体化学物种对纳米颗粒表面的终止作用，为纳米颗粒团聚提供了增强的屏障，并促进了纳米颗粒与聚合物的结合。