Synthesis and characterization of ZnS nanoparticles in water/AOT/n-heptane microemulsions

被引:84
作者
Liveri, VT
Rossi, M
D'Arrigo, G
Manno, D
Micocci, G
机构
[1] Univ Palermo, Dipartimento Chim Fis, I-90123 Palermo, Italy
[2] Univ Rome, Dipartimento Energet, I-00161 Rome, Italy
[3] INFM, UdR Romal, I-00161 Rome, Italy
[4] Univ Lecce, Dipartimento Sci Mat, I-73100 Lecce, Italy
[5] INFM, UdR Lecce, I-73100 Lecce, Italy
来源
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 1999年 / 69卷 / 04期
关键词
D O I
10.1007/s003390051016
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
ZnS nanoparticles were synthetized using water-containing AOT reversed micelles as nanoreactors and characterized by UV-Vis spectrophotometry, HRTEM (high-resolution transmission electron microscopy), SAED (selected-area electron diffraction), and digital image processing. The experimental data evidence a slow growing process of fractal-like ZnS nanoparticles' coupled with a change of their photophysical properties. Both these processes are well described by power laws. The nanoparticles size is mainly controlled by the micellar size. After evaporation of the organic solvent, it has been found that the deposit is constituted by smaller and more stable ZnS nanoparticles bathed in a surfactant matrix.
引用
收藏
页码:369 / 373
页数:5
相关论文
共 10 条
[1]   Calorimetric investigation of the formation of ZnS nanoparticles in W/O microemulsions [J].
Arcoleo, V ;
Goffredi, M ;
Liveri, VT .
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 1998, 51 (01) :125-133
[2]   CHEMISTRY IN NONINTEGER DIMENSIONS BETWEEN 2 AND 3 .2. FRACTAL SURFACES OF ADSORBENTS [J].
AVNIR, D ;
FARIN, D ;
PFEIFER, P .
JOURNAL OF CHEMICAL PHYSICS, 1983, 79 (07) :3566-3571
[3]  
DREXLER KE, 1992, NANOSYSTEMS
[4]  
FLETCHER PDI, 1991, J CHEM SOC F1, V83, P301
[5]   THE LUMINESCENCE OF PHOTO-CONDUCTING PHOSPHORS [J].
GARLICK, GFJ ;
GIBSON, AF .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1949, 39 (11) :935-941
[6]   THE KINETICS OF PRECIPITATION FROM SUPERSATURATED SOLID SOLUTIONS [J].
LIFSHITZ, IM ;
SLYOZOV, VV .
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1961, 19 (1-2) :35-50
[7]   SOLUBILIZATION BY REVERSE MICELLES - SOLUTE LOCALIZATION AND STRUCTURE PERTURBATION [J].
PILENI, MP ;
ZEMB, T ;
PETIT, C .
CHEMICAL PHYSICS LETTERS, 1985, 118 (04) :414-420
[8]   PHOTOCHEMICAL PRODUCTION OF HYDROGEN WITH ZINC-SULFIDE SUSPENSIONS [J].
REBER, JF ;
MEIER, K .
JOURNAL OF PHYSICAL CHEMISTRY, 1984, 88 (24) :5903-5913
[9]   Photophysical properties of ZnS nanoclusters with spatially localized Mn2+ [J].
Sooklal, K ;
Cullum, BS ;
Angel, SM ;
Murphy, CJ .
JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (11) :4551-4555
[10]   PHOTOCHEMISTRY OF COLLOIDAL METAL SULFIDES .7. ABSORPTION AND FLUORESCENCE OF EXTREMELY SMALL ZNS PARTICLES - THE WORLD OF THE NEGLECTED DIMENSIONS [J].
WELLER, H ;
KOCH, U ;
GUTIERREZ, M ;
HENGLEIN, A .
BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1984, 88 (07) :649-656