高效光催化材料最新研究进展及挑战

Recent Progress and Challenge in Research of Novel Photocatalytic Materials

光催化材料在能源转换和环境净化领域具有重要的应用前景。实现光催化技术的实际应用,其关键是开发出高效的光催化材料,高效的光催化材料需要满足带隙与太阳光谱匹配、导价带能级位与反应物电极电位匹配、高量子效率和光化学稳定等性能要求。综述了新型光催化材料开发策略及研究进展,重点总结了包含能量转换效率提高方法、光催化机理认识与表征手段等光催化领域材料发展的新趋势。分析了提高光催化能量转换效率的关键所在及开展新型光催化材料研究工作的重要性,展望了该领域的未来发展方向。

Photocatalytic materials present the potential applications for energy conversion and environment purification. To develop the efficient photocatalysts is a key step for promoting the photocatalytic technique into practical applications. The efficient photocatalyst must have the moderate band gap to match the solar irradiation spectrum, the appropriate conduction and valence level to match the redox potential of reactant, the high quantum efficiency and high photoelectrochemical stability . This review article introduces the present research state of novel photocatalytic materials, including a summary on basic mechanism for photocatalysis, the development strategy for visible-light-driven photocatalysts, the novel methods to improve the energy conversion efficiency and the new characteristic tools to know the mechanism of photocatalytic reaction. The key problems for improving the energy conversion efficiency and significance on the development of novel photocatalytic materials are discussed. Finally, the potential research directions in the photocatalysis fields are viewed.