Size-selective incorporation of CdS nanoparticles into mesoporous silica

Article Abstract:

CdS nanoparticles were produced in reverse micellar systems and incorporated into thiol-modified MCM-41 (FM41) mesoporous material, of various pore sizes, designated as large, middle and small. A particle-sieving effect of the FM41 was found, in that the incorporation of the CdS nanoparticles was reduced by increased size of particle, and by a reduction in the pore size of FM41. The resulting CdS-FM41 composite indicated photocatalytic activity for H2 generation from water.

Research, Silica, Nanotechnology, Cadmium, Micelles, Silicon dioxide

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Effects of metal cation coordination on fluorescence properties of a diethylenetriamine bearing two end pyrene fragments

Article Abstract:

The effect of adding metal cations ([Zn.sup.2+], [Cd.sup.2+], [Cu.sup.2+], [Hg.sup.2+], [Ag.sup.2+]) on the fluorescence properties of a diethylenetriamine bearing two end pyrene fragments, L, which was studied in water showed L to behave as the first molecular switch capable of quenching pyrene excimer emission by the addition of all of these metal cations in water.

All Other Basic Inorganic Chemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Cadmium Compounds, Electric properties, Mercury compounds, Zinc compounds, Chemical properties

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