Liquid chromatography used to size-separate the amphiphilic-molecules stabilized nano-particles of CdS in the 1-10nm range.

被引:10
作者
Sivamohan, R [1 ]
Takahashi, H
Kasuya, A
Tohji, K
Tsunekawa, S
Ito, S
Jeyadevan, B
机构
[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
[2] Tohoku Univ, Dept Geosci & Technol, Aoba Ku, Sendai, Miyagi 9808577, Japan
来源
NANOSTRUCTURED MATERIALS | 1999年 / 12卷 / 1-4期
关键词
D O I
10.1016/S0965-9773(99)00072-0
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The making of nano-particles in the 1-10nm range in micro-emulsions, the surface coating of these by the amphiphilic-molecules in the same microemulsion and the subsequent treatment of the oil-phase based particles in the liquid chromatography (HPLC) is the focus of this work. A HPLC column,with Silica (5 mu m diameter, 120 Angstrom pare size) with C-18 (ODS) bonded phase was used. Toluene is used as the mobile phase. The CdS nanoparticles in the mobile phase were continuously monitored by ultra-violet spectroscopy The CdS products were collected at different time intervals. For a relatively coarse feed, in 5.7nm range, a rich product,vith a sharp size distribution can be obtained. High resolution transmission electron micrograph shows that the product is well crystallized. The eluted products from the HPLC were treated separately in a Size Exclusion Chromatography. Elution times for size-exclusion-chromatography show that the different HPLC products come out in different time intervals suggesting the possibility of nanoparticle size separation by this method. (C) 1999 Acta Metallurgica Inc.
引用
收藏
页码:89 / 94
页数:6
相关论文
共 8 条
[1]  
EDELSTEIN AS, 1996, NANOMATERIALS
[2]  
FISHER CH, 1989, LANGMUIR, V5, P429
[3]  
FISHER CH, 1986, BER BUNSEN PHYS CHEM, V90, P46
[4]  
Miller J. M., 1988, CHROMATOGRAPHY CONCE
[5]   Nanosized particles made in colloidal assemblies [J].
Pileni, MP .
LANGMUIR, 1997, 13 (13) :3266-3276
[6]  
SASAKI T, 1997, P 11 TOY C NAN MAT N
[7]   A novel extraction method for fullerenes over C-90 in large quantities using hydrothermal treatment [J].
Takahashi, H ;
Goto, T ;
Akiyama, K ;
Jeyadevan, B ;
Tohji, K ;
Matsuoka, I .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1996, 217 :42-45
[8]   Liquid chromatographic analysis and characterization of inorganic nanoclusters [J].
Wilcoxon, JP ;
Craft, SA .
NANOSTRUCTURED MATERIALS, 1997, 9 (1-8) :85-88