本申请拟通过ZnO/M-n-p核壳纳米棒壳层金属及n，p半导体材料能级的合理匹配，设计可见光响应型光催化剂，用以解决光催化CO2和低碳烷烃合成烃类氧化物反应过程中存在的光量子效率低、光响应范围窄以及CO2和低碳烷烃活化困难等核心问题。研究内容包括：ZnO/M-n-p核壳纳米棒设计，研究相关基元组分化学组成、结构以及由基元组分组合成复合半导体材料时其能级结构和基元尺寸的最佳匹配设计和调控规律；研究将金属修饰n-p复合半导体均匀地锚定到ZnO纳米棒壳层，获取大比表面积和高光能利用效率的光催化材料制备技术；壳层半导体的n-p复合效应和金属修饰对光催化材料光吸收性能、CO2分子C=O键和烷烃分子C-H键的吸附活化性能以及光催化反应性能的影响；不同反应器形式、光源对光催化反应性能的影响; 探讨光催化CO2和低碳烷烃直接合成烃类氧化物反应机理等。以期为CO2和低碳烷烃的高效利用提供一条经济可行的通道。

The project aims to resolve the problems of low photo quantum efficiency,activation of C=O bond in CO2 molecular and C-H bond of low carbon alkane, and narrow photo absorption field enconuntering in direct synthesis of hydrocarbon oxygenation from CO2 and short chain alkane by using ZnO/M-n-p core/shell nanorods with energy band porperly matched.The main research work includes: the design of ZnO-based core/shell nanorods that emphasises on the optimal matching and readjusting of chemical constituents, structure, energy band structure and particle size fo basic component; the preparation processing technology of ZnO-based core/shell nanorod by physical and chemical method for anchoring the metal modified n-p coupled-semiconductors on the shell of ZnO nanorods to obtain photo catalytic materials with large specific surface area and high light energy ultization efficiency; the influence of the synergetic effect of n-p semiconductor and metal loading in the shell of the ZnO nanorods on the behavious of photo absorption, the adsorption and activation of C=O bond in CO2 molecular and C-H bond in low carbon alkane, and the performance of photocatalytic reaction; the effects of different types of photo reactor and light sources on the properties of photocatalytic reaction, and the optimization of reaction conditions; the study of reaction mechanism for photocatalytic CO2 and low carbon alkane to hydrocarbon oxygenations.The project will provide an enconomic and effective means for the chemical ultilization of carbon dioxide and short chain alkane.