高等学校化学学报

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锆酸钡/聚合物复合中空纳米球的水热合成

董正洪, 赵永男, 余建国, 周培, 苏皓, 庞莎   

  1. 天津工业大学纳米结构材料研究所, 天津市改性与功能纤维重点实验室, 天津 300160
  • 收稿日期:2007-09-18 修回日期:1900-01-01 出版日期:2008-02-10 发布日期:2008-02-10
  • 通讯作者: 赵永男

Hydrothermal Synthesis of Polymer/BaZrO3 Hybrid Hollow Nanospheres

DONG Zheng-Hong, ZHAO Yong-Nan*, YU Jian-Guo, ZHOU Pei, SU Hao, PANG Sha   

  1. Institute of Nanostructured Materials, Tianjin Key Laboratory of Fiber Modification and Functional Fiber, Tianjin Polytechnic University, Tianjin 300160, China
  • Received:2007-09-18 Revised:1900-01-01 Online:2008-02-10 Published:2008-02-10
  • Contact: ZHAO Yong-Nan

摘要: 采用聚合物辅助水热合成方法, 在强碱条件下加入PAA和PVA的混合液,实现了聚合物/锆酸钡复合中空纳米球的软化学一步合成, 而且球壳为有机-无机复合材料, 有望用于吸附分离、催化剂载体、轻质陶瓷和涂料等方面.

关键词: 水热合成, 锆酸钡, 中空纳米球, 复合材料

Abstract: Hybrid polymer/BaZrO3 hollow nanospheres were successfully synthesized via a simple polymer assisted hydrothermal route. Polymer additives play a key role on the formation of hollow nanospheres. The samples prepared in the absence of polymers are microcubes. The basicity also plays an important role on the formation of hollow nanospheres. In low [OH-] concentration medium, the products are microcubes. Hollow spheres formed when the [OH-] is larger than 4 mol/L. Pure hollow spheres could be formed with the [OH-] over 8 mol/L. IR and TG data indicate the hybrid feature of the products. The polymer content(mass fraction) declined from 33% to 6% by adjusting the basicity from 8 to 16 mol/L. The diameters of nanos-pheres are tunable in the range of 300—100 nm via increasing the basicity.

Key words: Hydrothermal synthesis, BaZrO3, Hollow nanosphere, Hybrid material

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