To deal with the increasingly deteriorating environment problems, more and more harsh requirements are put forward for photocatalysis application. Building semiconductor heterostructures has been proven to be an efficient way to enhance photocatalytic performance. A kind of CdTe/ZnO heterostructures were synthesized by a hydrothermal and successive ionic layer absorption and reaction (SILAR) method and achieved obviously efficient photocatalytic performance. Moreover, after the N ion irradiation treatment, the photocatalytic activity was further enhanced, which can be ascribed to the introduction of oxygen vacancy defects. The photocatalytic performance enhancement mechanism by coupling constructing heterostructures and ion irradiation are further studied to give us an overall understanding on ZnO nanowires.

为了应对日益恶化的环境问题，对光催化应用提出了越来越苛刻的要求。建立半导体异质结构已被证明是增强光催化性能的有效方法。通过水热连续离子层吸收和反应（SILAR）法合成了一种CdTe / ZnO异质结构，具有明显的高效光催化性能。而且，在N离子辐照处理之后，光催化活性进一步增强，这可以归因于氧空位缺陷的引入。进一步研究了通过结合构造异质结构和离子辐照提高光催化性能的机理，以使我们对ZnO纳米线有一个整体的了解。