Acta Chimica Sinica ›› 2009, Vol. 67 ›› Issue (21): 2445-2449. Previous Articles     Next Articles

Full Papers

山嵛酸Langmuir膜结合氨气扩散控制生长碱式硝酸锌的分形结构

蔡莉   胡彬彬   薛中会   熊浩阳   戴树玺   张兴堂   杜祖亮*   

  1. (河南大学特种功能材料教育部重点实验室 开封 475004)
  • 投稿日期:2009-03-09 修回日期:2009-06-08 发布日期:2009-07-09
  • 通讯作者: 杜祖亮 E-mail:zld@henu.edu.cn
  • 基金资助:

    国家自然科学基金(No. 20371015 & 10874040)和教育部科技创新工程重大项目培育资金项目(No. 708062)资助课题

Fractal Structure Formation of Zinc Hydroxide Nitrate under a Behenic Acid Langmuir Monolayer Combined with Ammonia Vapor Diffusion

Cai, Li     Hu,  Binbin     Xue,  Zhonghui    Xiong, Haoyang    Dai, Shuxi    Zhang, Xingtang    Du, Zuliang   

  1. (Key Laboratory for Special Functional Materials of Ministry of Education, Henan University, Kaifeng 475004)
  • Received:2009-03-09 Revised:2009-06-08 Published:2009-07-09

Fractal structures of Zn5(OH)8(NO3)2•2H2O with a good orientation were fabricated at air-liquid interface by a novel method, in which, a behenic acid (BA) Langmuir monolayer was used as the biomineralization template, and ammonia vapor diffusion was introduced to provide an addition of kinetic control. The surface morphology and crystallinity of the specimens were characterized by means of scanning electron microscopy (SEM) and X-ray diffraction (XRD). The driving force in the fractal growth was investigated by the π-A curve studies, and the process and mechanism of fractal growth were discussed in detail. It was suggested that the presence of the BA Langmuir monolayer was responsible for the good orientation of the specimens, and the kinetically controlled diffusion of ammonia at the air-liquid interface provided a driving force for the fractal growth. This research may provide a feasible method to synthesize a series of specially structural inorganic materials.

Key words: Langmuir monolayer, kinetic control, fractal structure