如何有效处理环境污染和解决能源匮乏成为新时代可持续发展社会的两大主要难题。传统半导体无法有效地利用太阳光中大多数可见近红外光，而单一半导体光生载流子复合率高，因此开发利用全光谱响应、高太阳能利用率、高活性和稳定性的光催化剂已经成为当下首要任务。本项目基于构造MSx/MInSy (M=Zn, Cu或Ag)纳微异质结界面，选用不同稀土激活离子对Ln1:Ln2 (Ln1=Yb，Ln2= Tm或Ho或Er等)触发其与纳微异质结的界面相互作用和特殊的界面电子转移调控，通过化学、晶核生长及结晶条件控制等方法，构建高效全光谱纳米光催化材料。研究由稀土离子和纳微异质结引起的表面结构、内部缺陷结构和表面活性态等变化与目标底物分子作用和光催化性能的影响规律，揭示材料的构效关系，为全光谱响应高性能纳米光催化材料设计提供一些科学基础。

How to effectively deal with environmental pollution and solve the lack of energy has become two major problems in the sustainable development of society in the new era. The wide band gap of traditional semiconductors can not effectively utilize most visible near-infrared light in solar light, and while the single semiconductor has high carrier recombination rate. Therefore, the development of semiconductor photocatalysts with high efficiency, full spectrum response, high solar energy efficiency, high activity and stability has become the first task at present. This project is based on the construction of MSx/MInSy (M=Zn, Cu or Ag) nano-micro heterojunction interface, and different rare earth ion pairs Ln1:Ln2 (Ln1=Yb, Eu, Pr or Sm, Ln2= Tm, Ho or Er and so on) will be selected, triggering the interface interaction with nano-heterojunction and special electron transfer regulation at the interface. By means of chemical, nuclear growth and crystallization condition control, the highly efficient all-spectral nano-photocatalytic materials can be constructed. The effects of surface structure, internal defect structure and surface active state caused by rare earth ions and nano-heterojunction on the molecular interactions with target substrates and photocatalytic activity will be studied, and the structure-activity relationship of the material can be revealed. It provides some scientific basis for the design of high performance nano-photocatalytic materials with full spectral response.