Composite sorbents based on porous ceramic substrate and hybrid amino- and mercapto-silica materials for Ni(II) and Pb(II) ions removal

被引：31

作者：

Tomina, V. V. ^{[1
]}

Stolyarchuk, N. V. ^{[1
]}

Melnyk, I. V. ^{[1
]}

Zub, Yu L. ^{[1
]}

Kouznetsova, T. F. ^{[2
]}

Prozorovich, V. G. ^{[2
]}

Ivanets, A. I. ^{[2
]}

机构：

[1] NAS Ukraine, Chuiko Inst Surface Chem, 17 Gen Naumov Str, UA-03164 Kiev, Ukraine

[2] NAS Belarus, Inst Gen & Inorgan Chem, 9-1 Surganova Str, Minsk 220072, BELARUS

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2017年 / 175卷

关键词：

SiO2 ceramic supports; Sol-gel method; Surface functionalization; 3-Aminopropyl groups; 3-Mercaptopropyl groups; Nickel (II) and lead (II) ions sorption; SURFACE; MEMBRANES; FUNCTIONALIZATION; NANOPARTICLES; ADSORPTION;

D O I：

10.1016/j.seppur.2016.11.040

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Tubular porous ceramic substrates based on crystalline SiO2 were successfully functionalized with amino and mercapto functions using the one-step sol-gel approach. The samples were analyzed by SEM, FT-IR spectroscopy, low-temperature nitrogen adsorption-desorption to reveal their structure and composition. It was shown, that the functional layers of such materials contain silica nanoparticles with amino and mercapto groups, and their porosity can be varied regarding the nature of the structuring agent. All the amino-functionalized membranes showed 95% retention of Ni(II) ions from aqueous solution for 2 h of filtration in the filtration unit (at room temperature). Whereas, maximum retention by mercapto-functionalized membranes was 30% of Pb(II) ions. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：391 / 398

页数：8

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