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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >A novel 3D/2D CdIn2S4 nano-octahedron/ZnO nanosheet heterostructure: facile synthesis, synergistic effect and enhanced tetracycline hydrochloride photodegradation mechanism
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A novel 3D/2D CdIn2S4 nano-octahedron/ZnO nanosheet heterostructure: facile synthesis, synergistic effect and enhanced tetracycline hydrochloride photodegradation mechanism

机译：一种新型3D / 2D CDIN2S4纳米八面型/ ZnO纳米蛋白外结构：容易合成，协同效应和增强的四环素盐酸盐光降解机理

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摘要

In this work, 3D CdIn2S4 nano-octahedron/2D ZnO nanosheet heterojunctions (CIS/ZO-x) were fabricated for the first time via a facile and green impregnation-hydrothermal method, where three-dimensional (3D) CdIn2S4 nano-octahedra densely anchor onto both sides of 2D ZnO nanosheets to form an embedded nanostructure with intimate interfacial contacts. Various characterization techniques were adopted to measure the morphologies, structures and optical properties of the as-prepared CIS/ZO-x heterojunctions in detail. The photocatalytic performance of the as-prepared CIS/ZO-x was evaluated via the photodegradation of tetracycline hydrochloride (TCH) under visible light irradiation, and the result shows that the hybridization of ZnO nanosheets with CdIn2S4 nano-octahedra significantly enhances the photocatalytic activity of heterojunctions. The highly stable and reusable sample CIS/ZO-2 possesses the highest photocatalytic activity (94.04%), and its rate constant (k = 0.06357 min(-1)) is about 4.96 and 22.31 times as high as those of pure CdIn2S4 and ZnO. Interestingly, the removal efficiency of TCH and the rate constant are also much higher than those of numerous previously reported composite photocatalysts. The synergistic effect and the unique 3D/2D hybrid structure with intimate interfacial contacts are primarily responsible for the enhanced photocatalytic activity. A possible photocatalytic mechanism for the TCH photodegradation over the CIS/ZO sample is also proposed. This work provides a novel 3D/2D composite photocatalyst for the efficient removal of antibiotic pollutants and will be helpful for designing other 3D/2D heterojunctions.
机译：在这项工作中，3D CDIN2S4纳米八面体/ 2D ZnO纳米蛋白杂交（CIS / ZO-X）首次通过容易和绿色的浸渍 - 水热法制造，其中三维（3D）CDIN2S4纳米八面型法密集地锚固在2D ZnO纳米片的两侧形成嵌入式纳米结构，具有紧密的界面接触。采用各种表征技术测量制备的CIS / ZO-X异质结的形态，结构和光学性质详细。通过在可见光照射下的四环素盐酸盐（TCH）的光降解来评价AS制备的CIS / ZO-X的光催化性能，结果表明，用CDIN2S4纳米八面体的ZnO纳米片的杂交显着增强了光催化活性异性结。高稳定且可重复使用的样品CIS / ZO-2具有最高的光催化活性（94.04％），其速率常数（k = 0.06357 min（-1））约为4.96％和22.31倍，与纯CDIN2S4和ZnO一样高。 。有趣的是，TCH的去除效率和速率常数也远高于许多先前报道的复合光催化剂的效率。具有亲密界面触点的协同效应和独特的3D / 2D混合结构主要负责增强的光催化活性。还提出了在CIS / ZO样品上进行TCH光降​​解的可能光催化机制。这项工作提供了一种新型的3D / 2D复合光催化剂，用于有效去除抗生素污染物，并有助于设计其他3D / 2D异电结合。

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    Jiang Yinhua; Peng ZhiYuan; Wu Fengwei; Xiao Yan; Jing Xuan; Wang Lei; Liu Zhanchao; Zhang Jianming; Liu Yan; Ni Liang;

  • 作者单位

    Jiangsu Univ Sch Chem &

    Chem Engn Zhenjiang 212013 Peoples R China;

    Jiangsu Univ Sch Chem &

    Chem Engn Zhenjiang 212013 Peoples R China;

    Jiangsu Univ Sch Chem &

    Chem Engn Zhenjiang 212013 Peoples R China;

    Jiangsu Univ Sch Chem &

    Chem Engn Zhenjiang 212013 Peoples R China;

    Jiangsu Univ Sch Chem &

    Chem Engn Zhenjiang 212013 Peoples R China;

    Jiangsu Univ Sch Chem &

    Chem Engn Zhenjiang 212013 Peoples R China;

    Jiangsu Univ Sci &

    Technol Sch Mat Sci &

    Engn Zhenjiang 212003 Peoples R China;

    Jiangsu Univ Sch Chem &

    Chem Engn Zhenjiang 212013 Peoples R China;

    Jiangsu Univ Sch Chem &

    Chem Engn Zhenjiang 212013 Peoples R China;

    Jiangsu Univ Sch Chem &

    Chem Engn Zhenjiang 212013 Peoples R China;

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  • 中图分类 化学;无机化学;
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