Molecular clusters of binary and ternary mercury chalcogenides: colloidal synthesis characterization, and optical spectra

Article Abstract:

A series of binary (HgSe) and ternary(HgSe(sub 1-x)S(sub x)) mercury chalcogenides clusters were synthesized utilizing a colloidal technique involving the phase separation of metal and chalcogen precursors in the presence of strong Hg(II) coordinating ligands. The energy-dispersive X-ray measurements showed that the composition of the ternary material could be varied throughout the entire composition range from HgS to HgSe.

Chemistry, Physical and theoretical, Physical chemistry, Ligands, Ligands (Chemistry), Mercury compounds, Chemical properties

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Photocatalytic reduction of Se (VI) in aqueous solutions in UV/TiO (sub 2) system: kinetic modeling and reaction mechanism

Article Abstract:

New Se (VI) and formic acid adsorption models were derived assuming that one Se (VI) ion is absorbed onto two active sites on the TiO (sub 2) surface and the competitive adsorption of both Se (VI) and formate ions. The use of these adsorption models enables the derivation of a rate equation on the basis of the (langmuit-hinshelwood) LH reaction mechanism.

Ions

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Hexagonal selenium nanowires synthesized via vapor-phase growth

Article Abstract:

Hexagonal selenium nanowires are synthesized using a simple vapor-phase growth with the help of the silicon powder as a source material. The morphology, microstructure, and chemical compositions of the nanowires are characterized by various means.

Nanotechnology, Chemical synthesis

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