蓝藻模板合成金属有机骨架(MOFs)材料及其可见光催化产氢性能研究

光催化制氢是应对当前能源危机的一项极具发展前景的技术，新型高效光催化剂的合成是技术的关键。金属有机骨架（MOFs）材料就是一类近年来被广泛关注的新型催化剂，但应用于光催化却存在稳定性差和活性低等问题。申请人在前期研究中发现MOFs作为载体可使硫化物光催化剂的产氢活性显著提高，而染料敏化也可以提高MOFs材料的光催化产氢活性，基于MOFs材料的光催化产氢研究亟待探索。本研究以蓝藻为生物模板来研究制备MOFs材料的方法，以获得具有良好产氢活性的MOFs光催化剂为目的，通过一系列的表征手段，探索生物模板的应用和制备条件对于材料性能的影响，揭示生物模板合成法与MOFs材料光催化性能的联系。为开发出具有高活性的新型光催化材料提供理论依据和实验方法。研究结合了当前新型MOFs材料制备及应用和生物模板合成法的研究热点，针对当今社会亟需解决的能源与环境实际问题，具有重要的理论和实际意义。

Photocatalytic hydrogen production is one of the most prospective techniques against energy crisis. And the preparation of new highly effective photocatalysts is the crux. Metal-organic frameworks (MOFs) is one kind of the most proposing new catalyst but its low stability and low activity for photocatalysis are the most troubling concerns. In the previous studies, we found that sulfide photocatalyst embedded on MOFs exhibited much higher activity than bare one for hydrogen production and dye-sensitization could also be used for MOFs photocatalyst. Therefore, MOFs-based photocatalysis still demands prompt research. This proposal will study on biotemplating synthesis of MOFs for photocatalytic use by using cyanobacteria as templates. A combination of physicochemical techniques will be used to characterize the synthesized samples, investigate the effects of reaction conditions and preparation methods on the properties of materials, as well as reveal the relationship between biotemplating synthesis and photocatalytic applications of MOFs. The research could provide a reference theoretically and practically for developing new photocatalytic materials. It combines the research focuses of MOFs preparation and biotemplating synthesis. The results we will derive may have theoretical and practical significances to solve energy and environmental problems.