Architecting Z-scheme Bi2S3@CoO with 3D chrysanthemums-like architecture for both photoeletro-oxidization and -reduction performance under visible light
Architecting Z-scheme Bi2S3@CoO with 3D chrysanthemums-like architecture for both photoeletro-oxidization and -reduction performance under visible light
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采用 3D 菊花结构构建 Z 型 Bi2S3@CoO，以实现可见光下的光电氧化和还原性能
DOI：
10.1016/j.cej.2019.122092
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发表时间：
2019-12
影响因子：
15.1
通讯作者：
张蕾
中科院分区：
文献类型：
--
作者：
杨丽君;胡言东;张蕾
采用溶剂热自组装方法合成了具有适当氧化还原电位的大面积Z型Bi2S3@CoO三维（3D）分级结构类Chronums阵列.许多次级Bi 2S 3纳米片外延生长在花状CoO的细丝微瓣上。由于这种特殊的结构，该复合材料作为光阳极对四环素（TC）和金霉素（CTC）的光电氧化活性得到了很大的提高，而作为光电阴极对硝基苯基（n-NP）和Cr（VI）的光电还原活性也得到了提高。Bi2S3@CoO光电催化活性的提高主要归因于Bi2S3@CoO的类Chronums结构以及Bi2S3@CoO与CoO之间的协同效应。独特的结构赋予Bi2S3@CoO高比表面积、多个光反射/散射通道和改善的分子扩散动力学，提供更多暴露的活性边缘和更高的光利用效率。Bi 2S 3的引入进一步优化了CoO的能带结构，使其具有更窄的带隙，从而提高了对污染物的去除能力以及光生电荷和空穴的分离效率。本研究提供了一种新型的光电催化材料，在高效光能转换领域具有潜在的应用前景。
A large-area Z-scheme Bi2S3@CoO three dimensional(3D) hierarchical chrysanthemums-like array with a appropriate redoxpotential is synthesized via solvothermal self-assembly process. Many secondary Bi2S3nanosheets are epitaxially grown on thready micropetals of flower-like CoO. By virtue of this special architecture, the composite used as photoanode shows highly improved photoeletro-oxidization activities towards single and binary mixed tetracycline (TC) and chlortetracycline (CTC), while as a photocathode the photoeletro-reduction activities of n-nitrophenyl (n-NP) and Cr(VI) are also increased. The enhanced photoelectrocatalytic activity of Bi2S3@CoO is ascribed to the hierarchical chrysanthemums-like structure and the synergistic effect between Bi2S3and CoO. The unique structure endows Bi2S3@CoO with high specific surface area, multiple light reflection/scattering channels and improved molecular diffusion kinetics, providing more exposed active edges and greater light utilization efficiency. The introduction of Bi2S3further optimizes the band structure of CoO with a narrower band gap, resulting in high removal capacity to pollutants as well as higher separation efficiency of photogenerated charges and holes. The present study provides a new photoelectrocatalytic material, which will have potential application in the fields of high-efficiency light-energy conversion.
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影响因子：
8.8
作者：
Liu, Xueyan;Qi, Xinyu;Zhang, Lei
通讯作者：
Zhang, Lei
用于非对称超级电容器的一维和二维多孔CoO纳米材料的比较研究
影响因子：
6.2
作者：
Yuanhua Xiao;Andi Dai;Xiaobing Zhao;Shide Wu;Dangcheng Su;Xuezhao Wang;Shaoming Fang
通讯作者：
Shaoming Fang
多孔 CoO 纳米墙的形态调整以增强超级电容器电极的电化学性能
影响因子：
5.3
作者：
Tang Ning;Wang Wei;You Huihui;Zhai Zhangjie;Hilario Jonas;Zeng Liang;Zhang Lei
通讯作者：
Zhang Lei
影响因子：
15.1
作者：
Jo, Wan-Kuen;Natarajan, Thillai Sivakumar
通讯作者：
Natarajan, Thillai Sivakumar
影响因子：
4
作者：
Xueying Zhan;Zhenxing Wang;Fengmei Wang;Zhongzhou Cheng;Kai Xu;Qisheng Wang;M. Safdar;Jun He
通讯作者：
Xueying Zhan;Zhenxing Wang;Fengmei Wang;Zhongzhou Cheng;Kai Xu;Qisheng Wang;M. Safdar;Jun He