Tunable Synthesis of Various Wurtzite ZnS Architectural Structures and Their Photocatalytic Properties
Tunable Synthesis of Various Wurtzite ZnS Architectural Structures and Their Photocatalytic Properties
复制标题
DOI：
10.1002/adfm.200600891
复制
发表时间：
2007-10
影响因子：
19
通讯作者：
S. Xiong;Baojuan Xi;Chengming Wang;Dechen Xu;X. Feng;Zhi-yong Zhu;Yitai Qian
中科院分区：
文献类型：
--
作者：
S. Xiong;Baojuan Xi;Chengming Wang;Dechen Xu;X. Feng;Zhi-yong Zhu;Yitai Qian
通过控制混合溶剂的体积比和反应温度等反应条件，在二元溶液中合成了具有新颖而复杂的三维结构的半导体硫化锌，如纳米棒(或纳米线)网络、城市状纳米结构、由纳米棒自组装的几乎单分散的纳米球和一维纳米结构(棒和线)。当温度从160℃升高到200-240℃时，硫化锌的形貌由三维结构转变为一维棒状(或线状)，并根据实验结果初步探讨了纳米棒自组装形成纳米球的可能生长机制。用红外光降解酸性品红的方法测试了各种纳米结构的光催化活性，并与商品硫化锌粉末在红外光照射下的光催化活性和商品二氧化钛粉末在紫外光照射下的光催化活性进行了比较，结果表明所制得的纳米结构对酸性品红具有良好的光催化活性。
Semiconductor ZnS with novel and complex 3D architectures such as nanorods (or nanowires) networks, urchinlike nanosturctures, nearly monodisperse nanospheres self‐assembled from nanorods and 1D nanostructures (rods and wires) had been synthesized in a binary solution by controlling the reaction conditions, such as the volume ratio of the mixed solvents and the reaction temperature. The morphology of ZnS changed from 3D architectural structures to 1D rodlike (or wirelike) shape when the temperature was increased from 160 to 200–240 °C. The possible growth mechanisms for the formation of nanospheres self‐assembled from nanorods are tentatively discussed according to the experimental results. The photocatalytic activity of various ZnS nanostructures has been tested by degradation of acid fuchsine under infrared light compared to that of commercial ZnS powders under infrared‐light irradiation and commercial TiO2 powders under UV‐light irradiation, indicating that the as‐obtained ZnS nanostructures exhibit excellent photocatalytic activity for degradation of acid fuchsine.