Functionalized SiO2 With S-Donor Thiophene: Synthesis, Characterization, and Its Heavy Metals Adsorption

被引：14

作者：

Radi, Smaail ^{[1
]}

Attayibat, Ahmed ^{[1
]}

机构：

[1] Univ Mohammed 1, Fac Sci, Dept Chim, Lab Chim Organ Macromol & Prod Nat, Oujda 60000, Morocco

来源：

PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS | 2010年 / 185卷 / 10期

关键词：

Adsorption; chemical synthesis; metals; S-donor thiophene; silica; SOLID-PHASE EXTRACTION; SILICA-GEL; AFFINITY-CHROMATOGRAPHY; CALORIMETRIC TITRATION; POROUS SILICA; SURFACE; COMPLEXES; PRECONCENTRATION; LIGAND; RECOMMENDATIONS;

D O I：

10.1080/10426500903440042

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Porous silica has been chemically modified with thiophene using the heterogeneous route. This synthetic route involved the reaction of native silica, SiO2, with a commercial silylating agent, 3-glycidoxypropyltrimethoxysilane, followed by the immobilization of the thiophene chelating groups on the support. The resulting material has been characterized by thermogravimetry, FTIR spectra, and elemental analysis. The solid was also studied and evaluated by determination of the surface area using the BET equation, and the adsorption and desorption capability using the isotherm of nitrogen and B.J.H. pore sizes. The new synthesized material was employed in a batch method as adsorbent from aqueous solutions of Hg2+, Cd2+, Pb2+, Cu2+, Zn2+, K+, Na+, and Li+.

引用

页码：2003 / 2013

页数：11

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