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首页> 外文期刊>Journal of Polymers and the Environment >Synthesis, Characterization, and Evaluation of Degussa P25/Chitosan Composites for the Photocatalytic Removal of Sertraline and Acid Red 18 from Water
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Synthesis, Characterization, and Evaluation of Degussa P25/Chitosan Composites for the Photocatalytic Removal of Sertraline and Acid Red 18 from Water

机译：从水中光催化除去塞拉氨素和酸红18的光催化除去甲磺酸盐复合材料的合成，表征和评价

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摘要

Degussa P25 titanium dioxide/chitosan composites (P25/CS) were prepared using three different methods and two different chitosan materials. The obtained materials were characterized by diffuse reflectance UV-Vis, Fourier-transform infrared spectroscopies, X-ray diffraction, and scanning electron microscopy. It was observed for all prepared materials that the chitosan surface is homogeneously covered by Degussa P25, the particles are evenly dispersed on the whole chitosan matrix and do not form agglomerates. The performance of P25/CS composites were tested in water treatment by the photocatalytic reaction of sertraline and Acid Red 18. The obtained results show that the application of prepared composites is effective in the reaction of decomposition of model organic impurities in water. Moreover, chitosan presence in the photocatalytic materials considerably facilitates the separation of catalyst from the reaction mixture, which is a great advantage compared to pure Degussa P25. The preparation method did not show a major effect on the photocatalytic activity. The method using glutaraldehyde as the crosslinking agent is the simplest one; thus, it is recommended for Degussa P25/chitosan nanocomposites preparation. These nanocomposites can be successfully applied in water purification by photocatalytic degradation of organic pollutants. Graphic
机译：使用三种不同的方法和两种不同的壳聚糖材料制备Degussa P25二氧化钛/壳聚糖复合材料（P25 / CS）。通过弥漫性反射率UV-Vis，傅里叶变换红外光谱，X射线衍射和扫描电子显微镜，其特征在于所得材料。对于所有制备的材料观察到壳聚糖表面被Degussa P25均匀地覆盖，颗粒均匀地分散在整个壳聚糖基质上，并且不形成聚集酸盐。通过塞拉甲酮和酸红18的光催化反应测试P25 / CS复合材料的性能。得到的结果表明，制备的复合材料的施加是有效的，在水中模型有机杂质的分解反应。此外，与纯Degussa P25相比，壳聚糖在光催化材料中的存在显着促进了催化剂的分离，这是一种很大的优势。制备方法没有对光催化活性显示出重大影响。使用戊二醛作为交联剂的方法是最简单的方法;因此，推荐用于Degussa P25 /壳聚糖纳米复合材料的制备。这些纳米复合材料可通过有机污染物的光催化降解成功地应用于水净化。形象的

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  • 来源
    《Journal of Polymers and the Environment》 |2021年第11期|3660-3667|共8页
  • 作者

    Rejek M.; Grzechulska-Damszel J.; Schmidt B.;

  • 作者单位

    West Pomeranian Univ Technol Szczecin Fac Chem Technol & Engn Dept Inorgan Chem Technol & Environm Engn Pulaskiego 10 PL-70322 Szczecin Poland;

    West Pomeranian Univ Technol Szczecin Fac Chem Technol & Engn Dept Inorgan Chem Technol & Environm Engn Pulaskiego 10 PL-70322 Szczecin Poland;

    West Pomeranian Univ Technol Szczecin Fac Chem Technol & Engn Dept Chem Organ Technol & Polymer Mat Pulaskiego 10 PL-70322 Szczecin Poland;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Composites; Photocatalysis; Chitosan; Titanium dioxide; Water purification;

    机译：复合材料;光催化;壳聚糖;二氧化钛;水净化;

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