Low-temperature, template-free synthesis of wurtzite ZnS nanostructures with hierarchical architectures
- Zhang, Huijuan
- Qi, Limin
DOIAbstract
Hierarchical wurtzite ZnS architectures assembled from nanosheets and nanorods, such as branched flowers and fluffy solid and hollow spheres, have been synthesized by a facile, template- free, low-temperature solution route. The growth of wurtzite ZnS nanostructures at temperatures as low as 4 degrees C without any organic additives has been realized by the slow reaction between Zn(NH3)(4)(2+) and thioacetamide in aqueous (NH4)(2)SO4-NH4OH solutions. Branched ZnS flowers made of ultrathin nanosheets similar to 6-10 nm in thickness were produced at 4 degrees C, whereas fluffy ZnS spheres consisting of radially oriented nanorods were fabricated at 60 degrees C. Prolonged ageing of the fluffy spheres at 60 degrees C resulted in the formation o...
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