Novel anion exchange membrane for concentration of lithium salt in hybrid capacitive deionization

被引：32

作者：

Siekierka, Anna ^{[1
]}

Bryjak, Marek ^{[1
]}

机构：

[1] Wroclaw Univ Sci & Technol, Dept Polymer & Carbon Mat, Wyb S Wyspianskiego 27, PL-50370 Wroclaw, Poland

来源：

DESALINATION | 2019年 / 452卷

关键词：

Poly(vinylidene fluoride); Ethylenediamine; Hybrid capacitive deionization; POLY(VINYLIDENE FLUORIDE); WATER DESALINATION; ELECTRODES; SEPARATION;

D O I：

10.1016/j.desal.2018.10.009

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Novel anion exchange membranes that blocks the co-ions effect and improve the desorption step in hybrid capacitive deionization (HCDI) process have been presented. The membranes were prepared by chemical modification of poly(vinylidene fluoride) by ethylene diamine. To confirm ion exchange character and electrical properties of obtained membranes such methods as FTIR, SEM and EIS were applied. Transport phenomenon was described by Arrhenius and Eyring-Polanyi equations. On their bases, taking into account desorption efficiency, membrane modified for 24 h was selected for the further investigation. Its application to the HCDI system allowed to obtain desorption efficiency at 96% level with over 0.9 current efficiency. The salt adsorption capacity of the system reached over 30 mg per 1 g of electrode. For these reasons the evaluated membrane could be considered as perspective material for salt concentration with electro driven process.

引用

页码：279 / 289

页数：11

共 38 条

[1] Capacitive Deionization of NaCl Solutions at Non-Steady-State Conditions: Inversion Functionality of the Carbon Electrodes [J].

Bouhadana, Yaniv ;

Avraham, Eran ;

Noked, Malachi ;

Ben-Tzion, Moshe ;

Soffer, Abraham ;

Aurbach, Doron .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (33) :16567-16573

[2] A control system for operating and investigating reactors: The demonstration of parasitic reactions in the water desalination by capacitive de-ionization [J].

Bouhadana, Yaniv ;

Ben-Tzion, Moshe ;

Soffer, Abraham ;

Aurbach, Doron .

DESALINATION, 2011, 268 (1-3) :253-261

[3]

Bryjak M., 2016, J MEMBR SEP TECHNOL, V4, P110, DOI [10.6000/1929-6032015.04.03.2, DOI 10.6000/1929-6032015.04.03.2]

[4] DEHYDROFLUORINATION OF POLY(VINYLIDENE FLUORIDE) IN DIMETHYLFORMAMIDE SOLUTION - SYNTHESIS OF AN OPERATIONALLY SOLUBLE SEMICONDUCTING POLYMER [J].

DIAS, AJ ;

MCCARTHY, TJ .

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 1985, 23 (04) :1057-1061

[5]

Dietz S., 2011, 21 INT SEM DOUBL LAY

[6] Theory of pH changes in water desalination by capacitive deionization [J].

Dykstra, J. E. ;

Keesman, K. J. ;

Biesheuvel, P. M. ;

van der Wal, A. .

WATER RESEARCH, 2017, 119 :178-186

[7] Mechanisms of proton conductance in polymer electrolyte membranes [J].

Eikerling, M ;

Kornyshev, AA ;

Kuznetsov, AM ;

Ulstrup, J ;

Walbran, S .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (17) :3646-3662

[8] The activated complex in chemical reactions [J].

Eyring, H .

JOURNAL OF CHEMICAL PHYSICS, 1935, 3 (02) :107-115

[9] Capacitive deionization of arsenic-contaminated groundwater in a single-pass mode [J].

Fan, Chen-Shiuan ;

Liou, Sofia Ya Hsuan ;

Hou, Chia-Hung .

CHEMOSPHERE, 2017, 184 :924-931

[10]

Fontananova E., 2016, IMPEDANCE SPECTROSCO, P1025

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