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General Route to the Fabrication of ZnS and M‐Doped (M = Cd 2+ , Mn 2+ , Co 2+ , Ni 2+ , and Eu 3+ ) ZnS Nanoclews and a Study of Their Properties
Author(s) -
Dong Lihong,
Liu Yang,
Zhuo Yujiang,
Chu Ying
Publication year - 2010
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.201000054
Subject(s) - photocatalysis , photoluminescence , chemistry , ethylenediamine , hydrothermal circulation , doping , hydrothermal synthesis , nuclear chemistry , inorganic chemistry , crystallography , analytical chemistry (journal) , nanotechnology , catalysis , chemical engineering , materials science , optoelectronics , biochemistry , chromatography , engineering
In a mixed solvent composed of water and ethylenediamine, pure and ion‐doped (Cd 2+ , Mn 2+ , Co 2+ , Ni 2+ , Eu 3+ , etc.) clew‐like ZnS nanostructures, self‐assembled by curled ZnS nanowires, were synthesized by means of a hydrothermal route. These nanoclews possess a high specific surface area and can be separated easily from solution by natural settlement due to the self‐assembled structure; thus, they can be used in the field of photocatalysis. Photocatalytic experiments indicated that the pure ZnS nanoclews presented higher photocatalytic activity under UV irradiation, and the photocatalytic activity of the recycled ZnS nanoclews does not change noticeably after five reaction cycles. Furthermore, the Cd x Zn 1– x S nanoclews showed high photocatalytic activity driven by visible light when the value of x was in the range from 0.3 to 0.7. The photoluminescence intensity of Eu 3+ ‐doped ZnS nanoclews increased significantly compared with pure ZnS nanoclews. The formation mechanism of the ZnS nanoclews is also discussed.