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From MoS 2 Microspheres to α‐MoO 3 Nanoplates: Growth Mechanism and Photocatalytic Activities
Author(s) -
Zhong Mianzeng,
Wei Zhongming,
Meng Xiuqing,
Wu Fengmin,
Li Jingbo
Publication year - 2014
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201402079
Subject(s) - photocatalysis , rhodamine b , hydrothermal circulation , microsphere , heterojunction , chemistry , annealing (glass) , chemical engineering , degradation (telecommunications) , nanotechnology , nanoparticle , nuclear chemistry , catalysis , materials science , metallurgy , optoelectronics , organic chemistry , telecommunications , computer science , engineering
Flowerlike MoS 2 microspheres were synthesized through a hydrothermal method. 2H‐MoS 2 nanoparticles, MoS 2 /MoO 3 heterojunctions, and α‐MoO 3 nanoplates were prepared by annealing the MoS 2 microspheres under different reaction conditions. The formation and growth mechanism of the samples from flowerlike MoS 2 microspheres to α‐MoO 3 nanoplates is explained in detail. The photocatalytic properties of the four samples for the degradation of rhodamine B (RhB) under visible‐light irradiation were studied. The results showed that the flowerlike MoS 2 microspheres, MoS 2 /α‐MoO 3 heterojunctions, and α‐MoO 3 nanoplates all have excellent photocatalytic activities. In particular, the flowerlike MoS 2 microspheres exhibit the highest photocatalytic activity for the degradation of RhB.