Designing a Hollow MoSe2 Nanospheres Photocatalyst with Broad-Spectrum for Photocatalytic Performance
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.
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