【摘要】 本文设计并合成了具有中空壳层结构的MoSe₂纳米球高效光催化剂，其在紫外-可见-近红外光区具有优异的光催化性能。中空壳层结构不但能够提供丰富的活性界面，而且有效地增加了材料对太阳光的利用率。紫外-可见-近红外漫反射光谱表明，中空结构的MoSe₂光吸收性能明显增强，光谱响应范围拓展至近红外光区。1T相MoSe₂具有高电导率促使更多的光生电荷参与氧化还原反应，同时1T-MoSe₂作为电子受体，进一步优化了光生载流子的转移途径和传输效率。中空MoSe₂纳米球在广谱照射下80.0 min内对罗丹明-B（Rh-B）的去除率高达88.9%，表现出良好的光催化活性。本文详细阐述了中空壳层结构MoSe₂纳米球的形成机制，对其光催化性能进行了探讨和总结。更多还原

【Abstract】 In this work,hollow MoSe₂ nanospheres with excellent photocatalytic performance in the UV-Vis-NIR light region were prepared by structural engineering.The structure of the empty shell layer not only provides a rich active interface,but also effectively increases the utilization of solar energy.UV-Vis-NIR diffuse absorption shows that the light absorption performance of the hollow MoSe₂ nanospheres is significantly enhanced,and the enhanced spectral response range is significantly extended from UV-Vis to NIR.The high conductivity of 1T-MoSe₂ allowed more photogenerated charges to participate in the redox reaction,while the use of 1T-MoSe₂ as an electron acceptor further optimised the transfer path and transfer efficiency of the photogenerated carriers.The degradation efficiency of Rhodamine B of hollow MoSe₂ nanospheres reached 88.9%in 80.0 minutes under broad spectrum light irradiation,showing good photocatalytic activity.In this work,the formation mechanism of structure of the empty shell layer MoSe₂ nanospheres is explicitly discussed and the photocatalytic properties are discussed and summarised.更多还原