Synthesis of Uniform CdS Particles from Condensed Cd(OH)2 Suspension

Tadao Sugimoto, Grace E. Dirige, Atsushi Muramatsu

Research output: Contribution to journalEditorial

27 Citations (Scopus)


Uniform CdS particles with an average diameter of 40-100 nm were prepared in large quantities by aging for 1 h at 20°C 1.0 mol dm-3 Cd(OH)2 suspensions containing 1.1 mol dm-3 thioacetamide (TAA), 1.0 mol dm-3 NH4NO3, and 1 wt% deionized gelatin in the presence of ammonia of various concentrations. No uniform CdS particles were formed when gelatin was not added to the system or when pH was adjusted with NaOH instead of NH3. The CdS particles grew via solution phase by a reaction of ammonia complexes of Cd2+ supplied by the dissolution of Cd(OH)2 and S2- released from TAA.

Original languageEnglish
Pages (from-to)257-259
Number of pages3
JournalJournal of Colloid and Interface Science
Issue number1
Publication statusPublished - 1995 Jul


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