Study of monovalent ion selectivity of anion-exchange membranes: effect of surface modification and applied voltage

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F17%3AN0000068" target="_blank" >RIV/28676092:_____/17:N0000068 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.5004/dwt.2017.20530" target="_blank" >http://dx.doi.org/10.5004/dwt.2017.20530</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5004/dwt.2017.20530" target="_blank" >10.5004/dwt.2017.20530</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Study of monovalent ion selectivity of anion-exchange membranes: effect of surface modification and applied voltage

Popis výsledku v původním jazyce

Commercially available heterogeneous ion exchange membranes (IEMs) designed for electrodialysis are often based on various types of polyethylene as a polymer matrix. The use of polypropylene (PP) binder for preparation of heterogeneous IEMs is mentioned in literature very poorly. The objective of this paper is to describe preparation of heterogeneous IEMs based on random copolymer of PP (PPR) and characterization of their processability and basic functional properties. Anion exchange membranes (AEMs) were prepared for this purpose with different content and particle size distribution of anion exchange resin and using two different PPR matrixes. The investigated properties of AEMs were water content, dimensional changes according to the temperature, ion exchange capacity, specific resistance, permselectivity and tensile properties. We observed significant differences based on the used matrix in the case of processability and specific resistance, contrary there was only very small influence between permselectivity and PPR matrix. Some of the AEMs possessed better electrochemical properties than commercially available heterogeneous AEMs at lower water content.

Název v anglickém jazyce

Study of monovalent ion selectivity of anion-exchange membranes: effect of surface modification and applied voltage

Popis výsledku anglicky

Commercially available heterogeneous ion exchange membranes (IEMs) designed for electrodialysis are often based on various types of polyethylene as a polymer matrix. The use of polypropylene (PP) binder for preparation of heterogeneous IEMs is mentioned in literature very poorly. The objective of this paper is to describe preparation of heterogeneous IEMs based on random copolymer of PP (PPR) and characterization of their processability and basic functional properties. Anion exchange membranes (AEMs) were prepared for this purpose with different content and particle size distribution of anion exchange resin and using two different PPR matrixes. The investigated properties of AEMs were water content, dimensional changes according to the temperature, ion exchange capacity, specific resistance, permselectivity and tensile properties. We observed significant differences based on the used matrix in the case of processability and specific resistance, contrary there was only very small influence between permselectivity and PPR matrix. Some of the AEMs possessed better electrochemical properties than commercially available heterogeneous AEMs at lower water content.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

<a href="/cs/project/LO1418" target="_blank" >LO1418: Progresivní rozvoj Membránového inovačního centra</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Desalination and Water Treatment

ISSN

1944-3994

e-ISSN

1944-3986

Svazek periodika

—

Číslo periodika v rámci svazku

75

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

284 - 292

Kód UT WoS článku

000404396100031

EID výsledku v databázi Scopus

2-s2.0-85021182470