For Cu-PILC sample, the copper content obtained from ICP
method was equal to the theoretical copper loading calculated with
CEC value in error range Thus, the copper
species over this sample was mainly located to the clay surface by
exchanging of adsorbed cations in interlayer position with large inorganic cations formed by hydrolysis
of copper acetate After introduction of Ti to clay, the
titania pillars were formed between adjacent layers and some separate
anatase phases were deposited on the surface of clay