title: A simple solution route to controlled synthesis of ZnS submicrospheres, nanosheets and nanorods.
abstract: ZnS nanostructures with different morphologies of submicrospheres, nanosheets and nanorods were synthesized by solution precipitation of thiourea with Zn(NO(3))(2) in the presence of block copolymer at low temperature. The sizes and morphologies of ZnS can be controlled simply by changing the processing parameters. The results show that the ZnS submicrospheres are of 250-500 nm in diameter, nanosheets are 2.5 µm × 5.5 µm with an estimated thickness of 20-30 nm, and nanorods are 2-5 nm in diameter and 10-30 nm in length. Keeping the precursor system in an autoclave at 105 °C results in the formation of ZnS submicrospheres; ultrasonication and keeping the system at room temperature leads to the formation of ZnS nanosheets; and long-time continuous ultrasonication and keeping the system in an autoclave at 105 °C induces the formation of uniform ZnS nanorods. We argue that the reaction temperature and P123 may play crucial roles in the formation of three ZnS structures in this work. The morphologically controllable synthesis strategies may be extended to the shape-controlled production of nanostructures of other inorganic materials.
authors: Shenyang National Laboratory for Materials Science, Institute of Metal Research, CAS, 72 Wenhua Road, Shenyang 110016, People's Republic of China. Laboratory of Mechanics of Soils, Structures and Materials, CNRS UMR 8579, Ecole Central Paris, 92295 Chatenay-Malabry, France.
authors: Zhigang
authors: Z
authors: Zhao
authors: Fengxia
authors: F
authors: Geng
authors: Hongtao
authors: H
authors: Cong
authors: Jinbo
authors: J
authors: Bai
authors: Hui-Ming
authors: HM
authors: Cheng