1. Low-temperature construction of MoS2 quantum dots/ZnO spheres and their photocatalytic activity under natural sunlight.
- Author
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Mei, Wei, Chen, Chuansheng, Chen, Xi'an, Liu, Xiaoyan, Yang, Zhi, Ding, Feng, Chao, Zisheng, and Liu, Tiangui
- Subjects
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METALS at low temperatures , *QUANTUM dots , *ZINC oxide , *PHOTOCATALYSTS , *CATALYTIC activity - Abstract
Zinc oxide (ZnO) nanophotocatalyst is a promising candidate for degrading organic pollutants but has an extremely low photocatalytic activity under nature sunlight. In this work, flower-like MoS 2 quantum dots/ZnO (MQ/ZnO) nanospheres with the size of approximately 1.26 μm are prepared at low temperature. The resultant flower-like MQ/ZnO nanospheres displayed higher photocatalytic activity than pure ZnO nanospheres under natural sunlight and without stirring, with the decomposition rate of the MQ/ZnO composites approximately 3.3 times higher than that of the pure ZnO nanospheres. Furthermore, the introduction of MoS 2 QDs endowed ZnO nanospheres with optical memory ability. The enhanced sunlight-driven photocatalytic activity is dependent on the unique electrical properties of MoS 2 QDs and the synergistic effect between ZnO and MoS 2 QDs. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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