School of Physics & Information Technology, Shaanxi Normal University, Xi'an 710119, People's Republic of China. School of Electrical & Information Engineering, North Minzu University, Yinchuan 750021, People's Republic of China.
Nanotechnology. 2017 Dec 8;28(49):495602. doi: 10.1088/1361-6528/aa94ae.
A facile one-step hydrothermal process was developed for fabrication of three-dimensional hierarchical NiTe@MoS heterostructures. A few layers of MoS uniformly grew on the NiTe nanorods, possessing a higher surface area. The strategy was extended to CoTe@MoS heterostructures with a few layers of MoS. The photocatalytic activities of the heterostructures were evaluated by the photodegradation of methylene blue. The composites show strong adsorption ability and much better photocatalytic efficiency in comparison with pure MoS microflowers and NiTe nanorods. Especially, the NiTe@MoS heterostructure with 40 wt% of MoS presents the highest performance in photocatalytic degradation of dye molecules, which is attributed to the formation of hierarchical network between NiTe nanorods and MoS nanosheets. And the possible mechanism of the enhanced photocatalytic activities was discussed.
一种简便的一步水热法被开发用于制备三维分级 NiTe@MoS 异质结构。少量的 MoS 层均匀地生长在 NiTe 纳米棒上，具有更高的表面积。该策略被扩展到 CoTe@MoS 异质结构，其中有少量的 MoS 层。通过亚甲基蓝的光降解来评估异质结构的光催化活性。与纯 MoS 微花和 NiTe 纳米棒相比，复合材料表现出较强的吸附能力和更好的光催化效率。特别是，具有 40wt% MoS 的 NiTe@MoS 异质结构在染料分子的光催化降解中表现出最高的性能，这归因于 NiTe 纳米棒和 MoS 纳米片之间形成的分级网络。并讨论了增强光催化活性的可能机制。
