Detail publikačního výsledku
Transport of copper(II) ions in humic gel - New results from diffusion couple
KLUČÁKOVÁ, M.; PEKAŘ, M.
Originální název
Transport of copper(II) ions in humic gel - New results from diffusion couple
Anglický název
Transport of copper(II) ions in humic gel - New results from diffusion couple
Druh
Článek recenzovaný mimo WoS a Scopus
Originální abstrakt
The diffusion of Cu(II) ions in humic gel was studied for the first time by the diffusion couple method. Three gel types were used. A basic humic gel (gel A) was prepared from sodium humate by precipitation with HCl. Humic gel with incorporated Cu(II) ions was prepared by two different methods: diffusion of Cu(II) ions into the basic gel (gel B) and precipitation of sodium humate with concentrated CuCl2 solution (gel C). The diffusion couple was realized by connecting two silicone tubes, one filled with humic gel containing Cu(II) ions (gel B or C) and the other filled with the gel lacking metal ions (gel A). The effective diffusion coefficient obtained for the gel A/gel B couple corresponds with results from the method of constant source published in our previous work and is higher than the value obtained for the gel A/gel C couple. Measurements of the diffusion of Cu(II) ions from gels B and C into water showed that there was probably some re-arrangement in the structure of these Cu-humic gels, which corresponds with the forementioned results.
Anglický abstrakt
The diffusion of Cu(II) ions in humic gel was studied for the first time by the diffusion couple method. Three gel types were used. A basic humic gel (gel A) was prepared from sodium humate by precipitation with HCl. Humic gel with incorporated Cu(II) ions was prepared by two different methods: diffusion of Cu(II) ions into the basic gel (gel B) and precipitation of sodium humate with concentrated CuCl2 solution (gel C). The diffusion couple was realized by connecting two silicone tubes, one filled with humic gel containing Cu(II) ions (gel B or C) and the other filled with the gel lacking metal ions (gel A). The effective diffusion coefficient obtained for the gel A/gel B couple corresponds with results from the method of constant source published in our previous work and is higher than the value obtained for the gel A/gel C couple. Measurements of the diffusion of Cu(II) ions from gels B and C into water showed that there was probably some re-arrangement in the structure of these Cu-humic gels, which corresponds with the forementioned results.
Klíčová slova
Humic acid, Diffusion, Complexation, Copper, Gel
Klíčová slova v angličtině
Humic acid, Diffusion, Complexation, Copper, Gel
Autoři
KLUČÁKOVÁ, M.; PEKAŘ, M.
Rok RIV
2010
Vydáno
20.09.2009
ISSN
0927-7757
Periodikum
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Svazek
349
Číslo
1-3
Stát
Nizozemsko
Strany od
96
Strany do
101
Strany počet
6
Plný text v Digitální knihovně
BibTex
@article{BUT48420,
author="Martina {Klučáková} and Miloslav {Pekař}",
title="Transport of copper(II) ions in humic gel - New results from diffusion couple",
journal="COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS",
year="2009",
volume="349",
number="1-3",
pages="96--101",
issn="0927-7757"
}