高分子模板调控不同形貌氧化亚铜的仿生合成.pdf

29卷第2期
无机化学学报
Vol 29 No. 2
2013年2月
CHINESE JOURNAL OF INORGANIC CHEMISTRY
265-270
高分子模板调控不同形貌氧化亚铜的仿生合成
李如于良民*贾兰妮闫雪峰董磊
中国海洋大学海洋化学理论与工程技术教育部重点实验宣,青岛26100
摘要:采用聚丙烯酰胺(PAM∩为软模板,在 CUSO4, Na2 50体系中调控合成了片状、海胆状、一维线、针状聚集体氧化亚铜晶体。
研究了不同浓度Cu2、不同PAM含量及不同温度对晶体生长的影响。结果表明,PAM促使氧化亚铜异相成核,氧化亚铜形貌随
PAM质量分数的变化而变化:当cCu2)=0.5mol-L时,PAM质量分数为3.0%(常温引人体系),产物主要为片状晶体;PAM质量
分数为1.0%、3.0%时(高温引入体系),分别获得一维线状、海胆状晶体;当Cu2浓度为0.1molL1时,体系中高温引人质量分数
3.0%的PAM,得到片层状晶体;当Cu浓度为0.3、0.4mol--时,得到针状聚集体氧化亚铜晶体。分别用X射线粉末行射、冷场
发射扫描电子显徽镜和激光粒度仪对所制备的产品进行了表征。
关键词:聚丙烯酰胺PAM);氧化亚铜;模板;片状;海胆状
中图分类号:0614.1;T050.421文献标识码:A文章编号:1001-4861(201302-0265-06
DOI:10.3969/is,1001-4861,2013.0.048
Biomimetic Synthesis of Different Morpholoy Cu O Induced
Using Polymer as Template
LI Ru YU Liang-min"JIA Lan-ni YAN Xue-feng DONG Lei
(Key Laboratory of Marine Chemistry Theory and echnology, Ministry of Education,
Ocean Uninersity of, Qingdao, Shandong 266100, China)
Abstract: One-dimensional nanowires, sheet-like, sea urchin-like and needle-like aggregations were prepared in
the presence of polyacrylamide (PAM ) as the template. The effects of mass fraction and temperature of PAM ar
concenration of copper salt on crystal growth were investigated. The result showed that the shape of the resulted
cuprous oxide crystallites could be well controlled by adjusting the PAM concentration. Sheet-like Cu2o particles
were produced when the PAM reached 3.0% at room temperature. One-dimensional nanowires and sea urchin
like Cu2o particle were obtained respectively by adding PAM solutions of 1.0% and 3.0% in 100 degree
Laminar-like and needle-like aggregations of Cu 0 were prepared respectively by adding different concentrations
of copper salt at 0.1, 0.3, and 0. 4 mol. I"l at high temperature and w(PAM) reached 3.0%o. The products were
haracterized by X-ray powder diffraction(XRD), scan electron microscopy(SEM )and particle size distribution
Key words: polyacrylamide; cuprous oxide; template; sheet; sea urehin-like
仿生合成技术就是模仿生物体内无机晶体在有长调控剂。另一方面采用生物大分子或者合成高分
机基质调控下生长和组装的机制,一方面是利用有子聚合物来控制无机材料结构,通过对聚合物分子
机添加剂作为无机晶体沉积和组装的模板或晶体生量的调节以及官能闭的修饰,使有机大分子选择性
收稿日期:2012-07-09。收修改稿日期:2012-09-11
863计划(No,2006AA09Z2242010A097203、2010AA065104);国家海洋公益性项目(No.201005028-2);国家自然科学基金(No.5110221
资助项目。
通讯联系人。E-mail:yuya@ouc.edu.cn