Synthesis of cadmium sulfide in situ in reverse micelles and in hydrocarbon gels

Journal Article · Thu Apr 21 00:00:00 EDT 1988 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100319a037· OSTI ID:7148596

Petit, C; Pileni, M P

The synthesis in situ of cadmium sulfide semiconductors in AOT reverse micelles produces smaller and more monodispersed particles than are obtained in Triton reverse micelles or in aqueous solution. When gelatine is added to the previous solution, the semiconductor is entrapped in a hydrocarbon gel and it size remains the same as that obtained in reverse micelles. The size of the sulfite cadmium aggregate formed in AOT hydrocarbon gels is similar to that obtained under similar conditions in AOT reverse micelles. AOT surfactant can play the role of stabilizing agent. However, a more efficient stabilization is obtained by adding to AOT reverse micelles another stabilizing agent such as sodium hexametaphosphate. The crystallite size is strongly dependent on the ratio of the cadmium and sulfur ions, defined by x = (Cd/sup 2 +/)/(S/sup 2 -//. The yield of reduced viologen obtained by CdS irradiation in AOT reverse micelles is 15 times more efficient than that formed in aqueous solutions whereas it is only three times more in hydrocarbon gels.

• Research Organization: Laboratoire di Structure et Reactivite aux Interfaces, Paris (France)
• OSTI ID: 7148596
• Journal Information: J. Phys. Chem.; (United States), Vol. 92:8
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CADMIUM SULFIDES
CATALYTIC EFFECTS
CHEMICAL PREPARATION
PHOTOCHEMICAL REACTIONS
GELS
MICELLAR SYSTEMS
ABSORPTION SPECTROSCOPY
COLLOIDS
EXPERIMENTAL DATA
SEMICONDUCTOR MATERIALS
CADMIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
DATA
DISPERSIONS
INFORMATION
INORGANIC PHOSPHORS
MATERIALS
NUMERICAL DATA
PHOSPHORS
SPECTROSCOPY
SULFIDES
SULFUR COMPOUNDS
SYNTHESIS
400201* - Chemical & Physicochemical Properties
400500 - Photochemistry