Add to ORKGSilica gel was chemically modified with the aromatic amines p-anisidine, p-phenytidine and p-phenylenediamine, using grafting reactions. The resulting modified silicas were characterized by infrared spectroscopy and N2 adsorption/desorption isotherms. The organic groups were covalently immobilized in a monolayer form. These modified silicas were investigated as adsorbents for Pb2+, Cu2+, Cd2+ and Ni2+ in aqueous and ethanol solutions. In a general way, the adsorption capacity values for all adsorbents presented the following sequence: Pb2+ >> Cu2+~= Cd2+ ~= Ni2+. Adsorption studies for all adsorbents, in competitive medium, showed better selectivity for Cu2+ and Pb2+ in aqueous medium and for Pb2+ in ethanol solution. Desorption studies wer...
The reaction of 3-propylethylenediamine groups covalently bonded to silica gel with pentane-2,4-dion...
The 4-amino-2-hydroxyacetophenone was immobilized onto silica gel modified with 3-aminopropyltrimeth...
Silica gel surfaces modified with 2- or 4-aminopyridine groups were used to adsorb MCl2 (M = Co, Ni,...
Silica gel was chemically modified with the aromatic amines p-anisidine, p-phenytidine and p-phenyle...
Chemically modified silica gel with amidoxime group was synthesized by silanization with 3-aminoprop...
2-((1H-pyrrol-2-yl)methylene)hydrazinecarbothioamide was chemically immobilized onto silica gel modi...
The chemically modified silica, obtained by reacting 2-mercaptobenz-imidazole with 3-chloropropyl si...
The chemically modified silica, obtained by reacting 2-mercaptobenz-imidazole with 3-chloropropyl si...
A method was developed to attach 2,2-bipyridine (BP) onto a silica gel surface by a two-step reactio...
Silica gel functionalized with pyridinium ions can be used to adsorb metal ions in the anionic compl...
In this work, a silica surface chemically modified with [3-(2,2′-dipyridylamine)propyl] groups, name...
Silica gel, chemically modified with piperazine [Si(CH2)3N(CH2CH2)2)NH], abbreviated as SiP, was use...
The adsorption behavior of Pb(II) and Cd(II) ions in aqueous solutions on silica aerogels modified w...
In this study, N-(2-aminoethyl)salicylaldimine bonded silica gel was synthesized and characterized u...
Silica gel surface modified with imidazolylpropyl group was used to adsorb MX2 (M = Mn, Ni, Cu, Zn, ...
The reaction of 3-propylethylenediamine groups covalently bonded to silica gel with pentane-2,4-dion...
The 4-amino-2-hydroxyacetophenone was immobilized onto silica gel modified with 3-aminopropyltrimeth...
Silica gel surfaces modified with 2- or 4-aminopyridine groups were used to adsorb MCl2 (M = Co, Ni,...
Silica gel was chemically modified with the aromatic amines p-anisidine, p-phenytidine and p-phenyle...
Chemically modified silica gel with amidoxime group was synthesized by silanization with 3-aminoprop...
2-((1H-pyrrol-2-yl)methylene)hydrazinecarbothioamide was chemically immobilized onto silica gel modi...
The chemically modified silica, obtained by reacting 2-mercaptobenz-imidazole with 3-chloropropyl si...
The chemically modified silica, obtained by reacting 2-mercaptobenz-imidazole with 3-chloropropyl si...
A method was developed to attach 2,2-bipyridine (BP) onto a silica gel surface by a two-step reactio...
Silica gel functionalized with pyridinium ions can be used to adsorb metal ions in the anionic compl...
In this work, a silica surface chemically modified with [3-(2,2′-dipyridylamine)propyl] groups, name...
Silica gel, chemically modified with piperazine [Si(CH2)3N(CH2CH2)2)NH], abbreviated as SiP, was use...
The adsorption behavior of Pb(II) and Cd(II) ions in aqueous solutions on silica aerogels modified w...
In this study, N-(2-aminoethyl)salicylaldimine bonded silica gel was synthesized and characterized u...
Silica gel surface modified with imidazolylpropyl group was used to adsorb MX2 (M = Mn, Ni, Cu, Zn, ...
The reaction of 3-propylethylenediamine groups covalently bonded to silica gel with pentane-2,4-dion...
The 4-amino-2-hydroxyacetophenone was immobilized onto silica gel modified with 3-aminopropyltrimeth...
Silica gel surfaces modified with 2- or 4-aminopyridine groups were used to adsorb MCl2 (M = Co, Ni,...