热液循环
纳米颗粒
溶胶凝胶
水热合成
材料科学
化学工程
矿物学
纳米技术
化学
工程类
作者
Zhijie Li,Wenzhong Shen,Limei Fang,Xihong Zu
标识
DOI:10.1016/j.jallcom.2007.09.075
摘要
Abstract Monodisperse silica-modified ZnS nanoparticles were prepared by sol–gel-hydrothermal method. XRD, XPS and FT-IR analysis results proved that there existed strong interaction between SiO 2 and ZnS. ZnS was covered with silica. The crystallinity and sizes of ZnS nanoparticles depended on the silica content, and the addition of silica could effectively suppress the growth of ZnS crystals. A considerable blue shift in the absorbing band edge significantly was observed for the silica-modified ZnS, and the blue shift became more remarkable as increase of silica content. The room temperature photoluminescence showed two UV emission peaks (at 304 and 364 nm, respectively) and a broad green peak.
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