1.
Nanoscale
; 4(2): 496-501, 2012 Jan 21.
Artigo
em Inglês
| MEDLINE
| ID: mdl-22095211
RESUMO
P-aminobenzoate-intercalated copper hydroxysalt was prepared by coprecipitation at high pH (â¼12). As the pH was reduced to â¼7 on washing with water, the development of partial positive charge on the amine end of the intercalated anion caused repulsion between the layers leading to delamination and colloidal dispersion of monolayers of copper hydroxysalt in water. The dispersed copper hydroxysalt monolayers were used as precursors for the synthesis of copper(I)/(II) oxide nanoparticles at room temperature. While the hydroxysalt layers yielded spindle-shaped CuO particles when left to stand, they formed hollow spherical nanoparticles of Cu(2)O when treated with an alkaline solution of ascorbic acid.