Self-Assembled ZnS Nanostructured Spheres: Controllable Crystal Phase and Morphology
Hua Tong
Ying-Jie Zhu
Li-Xia Yang
Liang Li
Ling Zhang
Jiang Chang
Li-Qiong An
Shi-Wei Wang
10.1021/jp066701l.s001
https://acs.figshare.com/articles/journal_contribution/Self_Assembled_ZnS_Nanostructured_Spheres_Controllable_Crystal_Phase_and_Morphology/3018916
We report a simple biomolecule-assisted synthesis of ZnS nanostructured spheres assembled from ZnS
nanocrystals with the controllable crystal phase and morphology. l-Cysteine, a biomolecule, was used as the
sulfur source and played a key role in the formation of ZnS nanostructured spheres. ZnS nanostructured
spheres assembled from various ZnS nanocrystal building blocks, such as nanosheets, quantum dots, nanorods,
and multimorphology nanocrystals, were successfully prepared by this simple method. The crystal phase of
ZnS nanostructured spheres could be controlled by introducing ethanolamine or ethanediamine as a surface-modifying reagent in this synthetic system. The hexagonal ZnS nanocrystals were obtained in mixed solvents
of water and ethanolamine at temperature as low as 95 °C. The growth mechanism of the nanostructured
spheres assembled from nanorods was proposed. The optical properties of ZnS nanostructured spheres were
investigated by ultraviolet−visible (UV−vis) absorption and photoluminescence (PL) spectra.
2007-03-15 00:00:00
UV
ZnS nanostructured spheres
PL
crystal phase
ZnS nanocrystals
ZnS nanocrystal building blocks