Metal-ion selectivity by macrocyclic ligands. Part 1. The interaction of Ni II and Cu II with pyridinyl-derived N3O2 macrocycles; the X-ray structures of a free macrocycle, its endomacrocyclic complexes of Ni II and Cu II and an exomacrocyclic nickel(II) complex

1991 ◽  
pp. 627 ◽  
Author(s):  
Neil A. Bailey ◽  
David E. Fenton ◽  
Simon J. Kitchen ◽  
Terence H. Lilley ◽  
Mark G. Williams ◽  
...  
Keyword(s):  
Metal Ion ◽  
Ion Selectivity ◽  
Macrocyclic Ligands ◽  
X Ray ◽  
Metal Ion Selectivity

ChemInform Abstract: Control of Metal Ion Selectivity in Ligands Containing Neutral Oxygen and Pyridyl Groups.

ChemInform ◽  
1987 ◽  
Vol 18 (9) ◽  
Author(s):  
K. V. DAMU ◽  
M. S. SHAIKJEE ◽  
J. P. MICHAEL ◽  
A. S. HOWARD ◽  
R. D. HANCOCK
Keyword(s):  
Metal Ion ◽  
Ion Selectivity ◽  
Metal Ion Selectivity

scholarly journals STUDY OF REMOVAL OF METAL IONS IN WATER USING ZEOLITES SYNTHESIZED WITH CHARCOAL ASHES

2006 ◽  
Vol 05 (3) ◽  
pp. 21-30
Author(s):  
Denise Alves FUNGARO ◽  
Juliana de Carvalho IZIDORO
Keyword(s):  
Metal Ions ◽  
Metal Ion ◽  
Ion Selectivity ◽  
Coal Ash ◽  
Electroplating Effluent ◽  
Zeolitic Material ◽  
Equilibrium Data ◽  
Metal Ion Selectivity ◽  
Removal Of Metal ◽  
Removal Of Metal Ions

The capacity of synthesized zeolites from Brazilian coal ash for the removal of metal ions from aqueous solutions has been investigated. Equilibrium data obtained have been found to fit both the Langmuir and Freundlich adsorption isotherms. The zeolitic material prepared with coal ash from baghouse filter showed the highest removal efficiencies. The metal ion selectivity of this product was determined as: Pb2+ > Cd2+ > Cu2+ > Zn2+ > Ni2+. The maximum cation exchange capacities were between 32.9 and 246.9 mg g-1. Tests showed that the zeolitic material was suitable for removal of zinc from electroplating effluent.

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