Title of article :
Sequestration of Cu(II), Ni(II), and Co(II) by ethyleneimine immobilized on silica
Author/Authors :
Luiza N.H. Arakaki، نويسنده , , Ana Paula M. Alves، نويسنده , , Edson C. da Silva Filho، نويسنده , , Maria G. Fonseca، نويسنده , , Severino F. Oliveira، نويسنده , , José Geraldo P. Esp?nola، نويسنده , , Claudio Airoldi، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2007
Abstract :
Thermodynamic data on interaction of Cu(II), Ni(II), and Co(II) with silica modified with ethyleneimine are obtained by calorimetric titration. The amount of ethyleneimine anchored on silica surface was estimated to be 0.70 mmol g−1. The enthalpies of binding Ni(II), Cu(II) and Co(II), are −3.59 ± 0.001, −4.88 ± 0.001, and −7.75 ± 0.003 kJ mol−1, respectively.
Keywords :
Chelating centers , Silica gel , Adsorption , Calorimetry , Thermochemical data
Journal title :
Thermochimica Acta
Journal title :
Thermochimica Acta
