عنوان المقالة:Extraction of Co, Ni, Cu, Zn and Cd ions using 2-aminophenylaminopropylpolysiloxane
أ.د نظام محمود الأشقر | Prof. Nizam M. El-Ashgar | 13767
- 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