A novel solid-phase extraction method for preconcentration of silver and antimicrobial properties of the Na-clinoptilolite-Ag composite

被引：7
|
作者：
Vasylechko, Volodymyr [1 ,2 ]
Fedorenko, Viktor [1 ]
Gromyko, Oleksandr [1 ]
Gryshchouk, Galyna [1 ]
Kalychak, Yaroslav [1 ]
Tistechok, Stepan [1 ]
Us, Ivanna [1 ]
Tupys, Andrii [1 ,3 ]
机构：
[1] Ivan Franko Natl Univ Lviv, 1 Univ Ska St, UA-79000 Lvov, Ukraine
[2] Lviv Univ Trade & Econ, 9 Samchouk St, UA-79011 Lvov, Ukraine
[3] Lviv Polytech Natl Univ, 12 Bandera Str, UA-79013 Lvov, Ukraine
来源：
MATERIALS TODAY-PROCEEDINGS | 2021年 / 35卷
关键词：
Na-clinoptilolite; Preconcentration; Silver; Solid-phase extraction; Antimicrobial activity; COPPER; ADSORPTION; EXCHANGE;
D O I：
10.1016/j.matpr.2019.10.049
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Sorptive properties of the Na-modified Transcarpathian clinoptilolite towards Ag(I) were studied under dynamic conditions. The sorption capacity value of Na-clinoptilolite under the optimal conditions is 7.46 mg Ag per 1 g of zeolite. Silver was quantitatively removed from the solid-phase extraction column with 0.1 M RbNO3 solution. The solid-phase extraction procedure with Na-clinoptilolite was used to preconcentrate trace amounts of silver ions in aqueous solutions to be finally determined by the atomic absorption method. It was established that the Na-form of clinoptilolite exhibits insignificant antimicrobial effect against E. coll. and S. aureus. The doping of this form of clinoptilolite with silver increases the ability of this composite to suppress the growth of E. coli. and S. aureus. (C) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页码：548 / 551
页数：4
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