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Updated: Feb 7, 2026

Production and Targeting of Monovalent Quantum Dots
Published on: October 23, 2014
Low-temperature construction of MoS2 quantum dots/ZnO spheres and their photocatalytic activity under natural
Wei Mei1, Chuansheng Chen1, Xi'an Chen2
1College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, China.
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 MoS2 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 MoS2 QDs endowed ZnO nanospheres with optical memory ability. The enhanced sunlight-driven photocatalytic activity is dependent on the unique electrical properties of MoS2 QDs and the synergistic effect between ZnO and MoS2 QDs.
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