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首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >In Situ L-Hydroxyproline Functionalization and Enhanced Photocatalytic Activity of TiO2 Nanorods
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In Situ L-Hydroxyproline Functionalization and Enhanced Photocatalytic Activity of TiO2 Nanorods

机译：TiO2纳米棒的原位L-羟基脯氨酸官能化和增强的光催化活性

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In this study, L-hydroxyproline-functionalized anatase TiO2 nanorods were prepared by a nonaqueous sol—gel route at 80 °C. The resulting samples were characterized by XRD, TEM, HRTEM, XPS, nitrogen adsorption, and UV—vis diffuse reflectance spectroscopy. The presence of L-hydroxyproline on the TiO2 surface was confirmed by the analysis of FT-IR and ~(13)C NMR. It was found that the functionalization of L-hydroxyproline could significantly enhance the photocatalytic activity of TiO2 on the degradation of rhodamine B in aqueous solution under simulated solar light. The reasons for photocatalytic activity enhancement were analyzed on the basis of characterizations. This study provides an alternative functionalization method to improve the photocatalytic activity of TiO2. Meanwhile, the modification of L-hydroxyproline on TiO2 is expected to find new applications in fields of organic catalysis, foodstuffs, cosmetics, and so on.
机译：在这项研究中，L-羟基脯氨酸官能化的锐钛矿型TiO2纳米棒是通过80°C下的非水溶胶-凝胶途径制备的。通过XRD，TEM，HRTEM，XPS，氮吸附和UV-vis漫反射光谱对样品进行表征。通过FT-IR和〜（13）C NMR分析证实了TiO 2表面上L-羟​​基脯氨酸的存在。发现在模拟太阳光下，L-羟基脯氨酸的官能化可以显着增强TiO2对水溶液中若丹明B降解的光催化活性。在表征的基础上分析了光催化活性增强的原因。这项研究提供了另一种功能化方法，以提高TiO2的光催化活性。同时，在TiO 2上对L-羟基脯氨酸的改性有望在有机催化，食品，化妆品等领域找到新的应用。

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