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首页> 外文期刊>The Journal of the Textile Institute >Fabrication of PANI@TiO_2 nanocomposite and its sunlight-driven photocatalytic effect on cotton fabrics
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Fabrication of PANI@TiO_2 nanocomposite and its sunlight-driven photocatalytic effect on cotton fabrics

机译：PANI @ TiO_2纳米复合材料的制作及其阳光驱动光催化效应棉织物

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摘要

Polyaniline (PANI) layer was successfully coated onto titanium dioxide nanoparticles (TiO2 NPs) through polymerization of aniline under UV light irradiation. Thickness of the PANI layer was controlled by adjusting the aniline amount added in the reaction system. Morphologies of the PANI coated TiO2 nanocomposite (PANI@TiO2) were obtained using transmission electron microscope (TEM). The optical properties of the composite nanoparticles were characterized by UV-vis adsorption spectroscopy. Fourier-transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) were also used to analyze the prepared nanocomposites. The PANI@TiO2 with a thin layer of PANI showed enhanced photocatalytic activity under simulated sunlight. The nanocomposites were coated onto mercerized cotton fabrics to endow the fabrics strong self-cleaning ability under sunlight. Furthermore, the PANI layer renders positive charges to TiO2 NPs and the mercerization treatment of cotton increases the amount of the hydroxyl groups on the surface, Both of these two factors promote the successful coating of TiO2 NPs on cotton. These results provide new insight for design of interface interaction between particles and fiber surface. Significantly, the convenient UV induced preparation method of PANI@TiO2 could achieve an easy scale-up manufacture of photocatalytic materials for functionalization of textiles.
机译：通过苯胺在UV光照射下成功地涂覆到二氧化钛纳米颗粒（TiO 2 NPS）上的聚苯胺（PANI）层。通过调节在反应体系中加入的苯胺量来控制PANI层的厚度。使用透射电子显微镜（TEM）获得PANI涂覆的TiO2纳米复合材料（PANI @ TiO2）的形态。通过UV-Vis吸附光谱表征复合纳米粒子的光学性质。傅里叶变换红外光谱（FTIR），X射线粉末衍射（XRD）和X射线光电子能谱（XPS）也用于分析制备的纳米复合材料。具有薄层PANI的PANI @ TiO2在模拟阳光下显示出增强的光催化活性。将纳米复合材料涂覆在氟化棉织物上，以赋予阳光下的织物强烈的自清洁能力。此外，PANI层使阳性电荷呈现为TiO2 NP，棉花的丝光处理增加了表面上的羟基的量，这两种因素都促进了棉花上的TiO2 NPS成功涂层。这些结果为粒子和纤维表面之间的界面相互作用设计提供了新的洞察力。值得注意的是，Pani @ TiO2的方便UV诱导的制备方法可以实现纺织纺织功能化的光催化材料的简便扩大。

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