一种新型纺锤状α-Fe2O3纳米晶的合成、表征及其表面性能

doi:10.3866/PKU.WHXB20101119

物理化学学报 >> 2010, Vol. 26 >> Issue (11): 3113-3119.doi: 10.3866/PKU.WHXB20101119

一种新型纺锤状α-Fe₂O₃纳米晶的合成、表征及其表面性能

詹拥共^1,2, 陈启元¹, 尹周澜¹, 李莉莉², 蔡炳新²

1. 中南大学化学化工学院,长沙410083;
2. 湖南大学化学化工学院, 长沙410082

收稿日期:2010-07-09 修回日期:2010-09-06 发布日期:2010-10-29
通讯作者: 陈启元, 蔡炳新 E-mail:cqy@mail.csu.edu.cn, cbx@hnu.cn
基金资助:
国家“十一五”科技支撑计划重点课题(2006BAE02B05)和国家重点基础研究发展规划项目(973) (2005CB221406)资助

Synthesis, Characterization and Surface Functionalization of Novel Spindle-Like α-Fe₂O₃ Nanocrystals

ZHAN Yong-Gong^1,2, CHEN Qi-Yuan¹, YIN Zhou-Lan¹, LI Li-Li², CAI Bing-Xin²

1. College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China;
2. College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China

Received:2010-07-09 Revised:2010-09-06 Published:2010-10-29
Contact: CHEN Qi-Yuan, CAI Bing-Xin E-mail:cqy@mail.csu.edu.cn, cbx@hnu.cn
Supported by:
The project was supported by the National Key Technology R&DProgramin the 11th Five-Year Plan of China (2006BAE02B05) and National Key Basic Research Programof China (973) (2005CB221406).

摘要/Abstract

摘要：

合成了一种新型的具有单晶结构的α-Fe₂O₃纳米晶(NFO-1). 在我们的合成方法中,样品的形貌和结构在低反应浓度体系中运用无机盐和有机模板进行双重调控, 同时用溶剂挥发诱导自组装(EISA)来加速反应和在不改变形貌结构的前提下获得高产率样品. 所得α-Fe₂O₃纳米晶的形貌和结构对其表面修饰功能有明显的影响,NFO-1 因其特殊的纺锤状形貌而与表面功能试剂(多巴胺)之间的化学作用有明显的增强. 并且, 本文所描述的合成方法同样适用于其他过渡金属氧化物纳米单晶的合成. 我们预期, 这种方法可为新型纳米材料的合成提供新的途径.

关键词: α-Fe₂O₃纳米晶, 模板导向, 溶剂挥发诱导自组装, 表面功能化

Abstract:

We synthesized novel α-Fe₂O₃ nanocrystals (NFO-1) with single crystalline structure. In our synthetic strategy, the morphology and structure can be controlled simultaneously by the choice of inorganic salt (IS) and organic template (OT) in the extremely low precursor concentration reaction system. The evaporation-induced self-assembly (EISA) method was used to accelerate the reaction and to recover the synthesized α-Fe₂O₃ with high yields while preserving its favorable shape and structure. The morphologies and structures of the obtained α-Fe₂O₃ nanocrystals greatly influence their surface functionalization capability. The chemical interaction between NFO-1 and the surface functionalization agent (dopamine) was obviously enhanced because of its special spindle-likemorphology. The synthesis method described in this paper is suitable for the synthesis of other transition metal oxide single nanocrystals as well and we expect that this new route will be useful for the synthesis of novel nanomaterials.

Key words: α-Fe₂O₃ nanocrystal, Template-direction, Evaporation-induced self-assembly, Surface functionalization

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詹拥共, 陈启元, 尹周澜, 李莉莉, 蔡炳新. 一种新型纺锤状α-Fe₂O₃纳米晶的合成、表征及其表面性能[J]. 物理化学学报, 2010, 26(11), 3113-3119. doi: 10.3866/PKU.WHXB20101119

ZHAN Yong-Gong, CHEN Qi-Yuan, YIN Zhou-Lan, LI Li-Li, CAI Bing-Xin. Synthesis, Characterization and Surface Functionalization of Novel Spindle-Like α-Fe₂O₃ Nanocrystals[J]. Acta Phys. -Chim. Sin. 2010, 26(11), 3113-3119. doi: 10.3866/PKU.WHXB20101119

链接本文: https://www.whxb.pku.edu.cn/CN/10.3866/PKU.WHXB20101119

https://www.whxb.pku.edu.cn/CN/Y2010/V26/I11/3113

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一种新型纺锤状α-Fe₂O₃纳米晶的合成、表征及其表面性能

Synthesis, Characterization and Surface Functionalization of Novel Spindle-Like α-Fe₂O₃ Nanocrystals

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