عنوان المقالة:Extraction of Co, Ni, Cu, Zn and Cd ions using 2-aminophenylaminopropylpolysiloxane
أ.د نظام محمود الأشقر | Prof. Nizam M. El-Ashgar | 13522
نوع النشر
مجلة علمية
المؤلفون بالعربي
Nizam M El-Ashgar, Issa M El-Nahhal, Mohamed M Chehimi, Florence Babonneau, Jacques Livage
الملخص العربي
Insoluble porous solid functionalized ligand system bearing 2-aminophenylaminopropyl chelating ligand of the general formula P–(CH2)3NH–(C6H4)–NH2 was prepared via the sol–gel process, where P represents [Si–O]n polysiloxane network. First, the 2-aminophenylaminopropylsilane agent was prepared by substitution reaction between 3-chloropropyltrimethoxysilane and 1,2-phenylenediamine, followed by hydrolytic polycondensation between 2-aminophenylaminopropylsilane agent and tetraethylorthosilicate(TEOS). The immobilized 2-aminophenylaminopropylpolysiloxane P–(CH2)3NH–(C6H4)–NH2(P–AphA) was characterized by 13C NMR, XPS, and FTIR. The results showed that 1,2-phenylenediamine groups were introduced onto polysiloxane network. The functionalized ligand system exhibits 90–100% metal uptake capacity for all metal ions except Cd2+. The elemental analysis data and the metal uptake capacities of the immobilized ligand system suggest that over than 90% ligand sites were involved in coordination with metal ions except that of cadmium forming 1:1 metal to ligand ratio complexes. Keywords
تاريخ النشر
01/12/2010
الناشر
Environmental Chemistry Letters
رابط DOI
https://do
رابط خارجي
https://link.springer.com/article/10.1007/s10311-009-0223-0
الكلمات المفتاحية
Metal uptake, 1,2-Phenylenediamine, Porous materials, Inorganic polymers, Sol–gel process, Polysilox
رجوع