Abstract
Ordered and highly functionalized organosilicas containing carboxylic acid groups were obtained in one step by hydrolysis and polycondensation of a cyanoalkyltrialkoxysilane (NC– CH2–(CH2)nCH2–Si(OR)3 with n = 1, 3 and 9) under acidic conditions; the europium ion adsorption capability of these materials was investigated.