CuS/ZnS/s-g-C3N4异质结分级结构的构筑、生长机理及光催化性能研究

项目名称： CuS/ZnS/s-g-C3N4异质结分级结构的构筑、生长机理及光催化性能研究

项目编号： No.21471122

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 数理科学和化学

项目作者： 邹菁

作者单位： 武汉工程大学

项目金额： 90万元

中文摘要： 半导体异质结分级结构纳米材料具有多层次、多维度、多组分的耦合和协同效应，应用前景十分广泛。本项目采用资源丰富的铜矿、锌矿，以及单层类石墨型氮化碳s-g-C3N4碳材料，设计并制备多组分CuS/ZnS/s-g-C3N4异质结分级结构的高效可见光催化剂。采用液相法原位合成技术，制备一系列CuS/ZnS/s-g-C3N4异质结分级结构；改变制备条件，调控其形貌和尺寸；研究不同条件下异质结的分级结构组装过程与生长机理，探讨异质结的分级结构与光催化性能的构效关系。在此基础上，提出异质结分级结构制备过程的结构动态调控原则，用于指导多组分半导体异质结分级结构的设计，并提出具有自主知识产权的多组分异质结分级结构材料的制备技术。本项目的实施有助于丰富多组分异质结光催化纳米材料合成理论，为未来多组分异质结光催化纳米材料提供新的思路。

中文关键词： CuS/ZnS/s-g-C3N4；异质结；可控合成；构效关系；光催化材料

英文摘要： Semiconductor heterojunction hierarchical nanostructure materials with the coupling and synergistic effects of the unique structure of multi-level, multi-dimension, and multi-components, have a very wide range of applications. In this project, the excellent visible catalyst-CuS/ZnS/s-g-C3N4 with hierarchical structure is designed by using copper ore and zinc ore with the rich resources, and s-g-C3N4 carbon materials. A series of CuS/ZnS/s-g-C3N4 heterojunction with different morphologies and different sizes hierarchical nanostructure will be prepared by solution synthesis in situ technology. The assembly process and growth mechanism and structure-effect relationship of heterojunction hierarchical nanostructure under different conditions will be explored in this project. On this basis, the dynamic regulation principles of heterojunction hierarchical nanostructure in the preparation process will be proposed, which can be used for guiding the design of multi-component heterojunction hierarchical nanostructure materials. The preparation technology will be developed for the multi-component semiconductor heterojunction hierarchical nanostructure materials with proprietary,which will enrich the synthesis theory of multi-component heterojunction photocatalyst nanomaterials, and provide new ideas for multi-component heterojunction photocatalyst nanomaterials future.

英文关键词： CuS/ZnS/s-g-C3N4;heterojunction;controlled synthesis;structure-effect relationship;photocatalytic materials