Synthesis of ultrafine titania nano-cages by pulsed laser ablation of Ti/Al alloy in ammonium hydrox

• 作 者: 王大猛 陈明 刘向东 高学平
• 机 构: School of Physics and State Key Laboratory of Crystal Materials, Shandong University,School of Mater
• 出 处: Chinese Optics Letters
• 发表日期: 2015年08期
• 关键词: ablation hydroxide ultrafine ammonia spherical ammonium pulsed titania fabricati

A simple and versatile strategy is designed to successfully fabricate ultrafine Ti O2nano-cages based on the rapid decomposition reaction between amphoteric hydroxide and ammonia solution by pulsed laser ablation of Ti/Al alloy in liquid. With the ammonia concentration(Vammonia:Vwater, where V is volume) increasing from 1∶10 to1∶4, the diameter and shell thickness of quasi-spherical Ti O2nano-cages substantially decrease from300 and 60 nm to 9.2 and 2.8 nm, respectively. The obtained results have significant implications for obtaining insight into the properties of the Ti O2 porous nano-cages, offering the basis for further fabrication of other nano-cages.

A simple and versatile strategy is designed to successfully fabricate ultrafine Ti O2 nano-cages based on the rapid decomposition reaction between amphoteric hydroxide and ammonia solution by pulsed laser ablation of Ti / Al alloy in liquid. With the ammonia concentration (Vammonia: Vwater, where V is volume) increasing from 1:10 to 1: 4, the diameter and shell thickness of quasi-spherical Ti O2nano-cins are substantially decrease from300 and 60 nm to 9.2 and 2.8 nm, respectively. The resulting results have significant implications for insight into the properties of the Ti O2 porous nano-cages, offering the basis for further fabrication of other nano-cages.