10.1021/jp066701l.s001
Hua Tong
Hua
Tong
Ying-Jie Zhu
Ying-Jie
Zhu
Li-Xia Yang
Li-Xia
Yang
Liang Li
Liang
Li
Ling Zhang
Ling
Zhang
Jiang Chang
Jiang
Chang
Li-Qiong An
Li-Qiong
An
Shi-Wei Wang
Shi-Wei
Wang
Self-Assembled ZnS Nanostructured Spheres: Controllable Crystal Phase and Morphology
American Chemical Society
2007
UV
ZnS nanostructured spheres
PL
crystal phase
ZnS nanocrystals
ZnS nanocrystal building blocks
2007-03-15 00:00:00
Journal contribution
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.