Evaluation of Nb2O5 and Ag/Nb2O5 in the photocatalytic degradation of dyes from textile industries

by M.K. Silva, R.G. Marques, N.R.C.F. Machado, O.A.A. Santos
Published 2002-12-01

On the acidity and/or basicity of USY zeolites after basic and acid treatment

by V. Calsavara, N. R. C. F. Machado, J. L. Bernardi Jr, E. F. Sousa-Aguiar
Published 2000-03-01

ION EXCHANGE MECHANISM OF Cr+3 ON NATURALLY OCCURRING CLINOPTILOLITE

by M.A.S.D. de Barros, N.R.C.F. Machado, F.V. Alves, E.F. Sousa-Aguiar
Published 1997-09-01