Development of high performance anion exchange membranes for diffusion dialysis process

2021 ◽  
Vol 221 ◽  
pp. 281-290
Author(s):  
Muhammad Imran Khan ◽  
Jinzhan Su ◽  
Liejin Guo
Keyword(s):  
Anion Exchange ◽  
High Performance ◽  
Anion Exchange Membranes ◽  
Diffusion Dialysis

High-performance porous anion exchange membranes for efficient acid recovery from acidic wastewater by diffusion dialysis

2021 ◽  
Vol 624 ◽  
pp. 119116
Author(s):  
Jiuyang Lin ◽  
Junming Huang ◽  
Jing Wang ◽  
Junwei Yu ◽  
Xinqiang You ◽  
...  
Keyword(s):  
Anion Exchange ◽  
High Performance ◽  
Anion Exchange Membranes ◽  
Acid Recovery ◽  
Diffusion Dialysis ◽  
Acidic Wastewater

scholarly journals Innovative BPPO Anion Exchange Membranes Formulation Using Diffusion Dialysis-Enhanced Acid Regeneration System

Membranes ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 311
Author(s):  
Muhammad Imran Khan ◽  
Majeda Khraisheh ◽  
Fares AlMomani
Keyword(s):  
Anion Exchange ◽  
Room Temperature ◽  
Feed Solution ◽  
Exchange Capacity ◽  
Anion Exchange Membranes ◽  
Regeneration System ◽  
Waste Streams ◽  
Acid Recovery ◽  
Aqueous Waste ◽  
Diffusion Dialysis

Recycling of acid from aqueous waste streams is crucial not only from the environmental point of view but also for maturing the feasible method (diffusion dialysis). Anion exchange membrane (AEM)–based diffusion dialysis process is one of the beneficial ways to recover acid from aqueous waste streams. In this article, the synthesis of a series of brominated poly (2, 6–dimethyl-1, 4–phenylene oxide) (BPPO)-based anion exchange membranes (AEMs) through quaternization with triphenylphosphine (TPP) were reported for acid recovery via diffusion dialysis process. The successful synthesis of the prepared membranes was confirmed by Fourier transform infrared (FTIR) spectroscopy. The as-synthesized anion exchange membranes represented water uptake (WR) of 44 to 66%, ion exchange capacity of (IEC) of 1.22 to 1.86 mmol/g, and linear swelling ratio (LSR) of 8 to 20%. They exhibited excellent thermal, mechanical, and acid stability. They showed homogeneous morphology. The acid recovery performance of the synthesized AEMs was investigated in a two compartment stack using simulated mixture of HCl and FeCl2 as feed solution at room temperature. For the synthesized anion exchange membranes TPP–43 to TPP–100, the diffusion dialysis coefficient of acid (UH+) was in the range of 6.7 to 26.3 (10−3 m/h) whereas separation factor (S) was in the range of 27 to 49 at 25 °C. Obtained results revealed that diffusion dialysis performance of the synthesized AEMs was higher than the commercial membrane DF–120B (UH+ = 0.004 m/h, S = 24.3) at room temperature. It showed that the prepared AEMs here could be excellent candidates for the diffusion dialysis process.

High performance anion exchange membranes obtained through graft architecture and rational cross-linking

2014 ◽  
Vol 470 ◽  
pp. 229-236 ◽  
Author(s):  
Jin Ran ◽  
Liang Wu ◽  
Qianqian Ge ◽  
Yaoyao Chen ◽  
Tongwen Xu
Keyword(s):  
Anion Exchange ◽  
High Performance ◽  
Cross Linking ◽  
Anion Exchange Membranes

Fabrication of asymmetrical diffusion dialysis membranes for rapid acid recovery with high purity

2015 ◽  
Vol 3 (47) ◽  
pp. 24000-24007 ◽  
Author(s):  
Xiaocheng Lin ◽  
Ezzatollah Shamsaei ◽  
Biao Kong ◽  
Jefferson Zhe Liu ◽  
Tongwen Xu ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Environmental Impact ◽  
Anion Exchange ◽  
High Purity ◽  
Process Efficiency ◽  
Industrial Processes ◽  
Anion Exchange Membranes ◽  
Acid Recovery ◽  
Dialysis Membranes ◽  
Diffusion Dialysis

Anion exchange membranes with fast acid permeation and high retention of salts have been fabricated to increase the process efficiency of acid recovery from various industrial processes via diffusion dialysis, thereby greatly reducing their energy consumption and environmental impact.

Crosslinked high-performance anion exchange membranes based on poly(styrene-b-(ethylene-co-butylene)-b-styrene)

2018 ◽  
Vol 551 ◽  
pp. 66-75 ◽  
Author(s):  
Jinkai Hao ◽  
Xueqiang Gao ◽  
Yongyi Jiang ◽  
Hongjie Zhang ◽  
Jiangshui Luo ◽  
...  
Keyword(s):  
Anion Exchange ◽  
High Performance ◽  
Anion Exchange Membranes

scholarly journals Quaternized Chitosan-Based Anion Exchange Membrane Composited with Quaternized Poly(vinylbenzyl chloride)/Polysulfone Blend

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2714 ◽  
Author(s):  
Le Thi Tuyet Nhung ◽  
In Yea Kim ◽  
Young Soo Yoon
Keyword(s):  
Anion Exchange ◽  
High Performance ◽  
Ionic Conductivities ◽  
Anion Exchange Membrane ◽  
Commercial Application ◽  
Anion Exchange Membranes ◽  
Quaternized Chitosan ◽  
Structure And Morphology ◽  
Exchange Membrane ◽  
Scanning Electron

An efficient and effective process for the production of high-performance anion exchange membranes (AEMs) is necessary for the commercial application of fuel cells. Therefore, in this study, quaternized poly vinylbenzyl chloride (QVBC) and polysulfone were composited with glycidyltrimethylammonium-chloride-quaternized chitosan (QCS) at different ratios (viz., 1 wt %, 5 wt %, and 10 wt %). The structure and morphology of the membranes were characterized by Fourier transform infrared spectroscopy and scanning electron microscopy, respectively. Further, the water uptake, swelling ratio, and ionic conductivities of the composite membrane at different wt % of QCS were evaluated. The membrane with 5% QCS exhibited an ionic conductivity of 49.6 mS/cm and 130 mS/cm at 25 °C and 70 °C, respectively.

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