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首页> 外文期刊>Applied Surface Science >A facile preparation of immobilized BiOCl nanosheets/TiO2 arrays on FTO with enhanced photocatalytic activity and reusability
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A facile preparation of immobilized BiOCl nanosheets/TiO2 arrays on FTO with enhanced photocatalytic activity and reusability

机译：一种固定的BiOCl纳米片/ TiO2阵列在FTO上的简便制备，具有增强的光催化活性和可重复使用性

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Forming a hybrid structure is considered as an efficient strategy toward improving the photocatalytic activity of TiO2-based photocatalyst. In this work, we report a facile impregnation method to prepare BiOCl nanosheets on rutile TiO2 nanorod arrays on transparent conductive fluorine-doped tin oxide (FTO) substrate. According to RhB photocatalytic degradation experiments, the degradation efficiency of the immobilized BiOCl/TiO2 (denoted as BCTO-3) hybrid photocatalyst can reach 99.1% after visible light irradiation for 3 h, and its efficiency is higher than that of pure BiOCl (42.7%) and TiO2 (44.8%), respectively. The enhancement is demonstrated to be the match of energy level between BiOCI and TiO2. Hence, the separation and transfer of photogenerated electron-hole pairs are obviously improved, which have been illustrated by the result of the photoluminescence spectra analysis and photoelectrochemical performance. Moreover, the degradation efficiency of BCTO-3 can still reach 91.7% after eight times photodegradation cycle experiments. Due to the easy recycling and excellent durability, the immobilized BCTO-3 photocatalyst is considered as a promising photocatalytic material for the removal of organic pollutants in aqueous eco-environments. (C) 2016 Elsevier B.V. All rights reserved.
机译：形成杂化结构被认为是改善基于TiO 2的光催化剂的光催化活性的有效策略。在这项工作中，我们报告了一种简便的浸渍方法，以在透明导电掺氟氧化锡（FTO）基底上的金红石TiO2纳米棒阵列上制备BiOCl纳米片。根据RhB光催化降解实验，固定化的BiOCl / TiO2（称为BCTO-3）杂化光催化剂在可见光照射3 h后的降解效率可达到99.1％，其效率高于纯BiOCl（42.7％）。 ）和TiO2（44.8％）分别。增强被证明是BiOCI和TiO2之间的能级匹配。因此，光生电子-空穴对的分离和转移得到了明显改善，这已通过光致发光光谱分析和光电化学性能的结果得以说明。此外，经过八次光降解循环实验，BCTO-3的降解效率仍可达到91.7％。由于容易回收利用和出色的耐久性，固定化的BCTO-3光催化剂被认为是用于去除水性生态环境中有机污染物的有前途的光催化材料。 （C）2016 Elsevier B.V.保留所有权利。

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