TY - JOUR
T1 - Design of tropinium-functionalized anion exchange membranes for acid recovery via diffusion dialysis process
AU - Khan, Muhammad Imran
AU - Shanableh, Abdallah
AU - Manzoor, Suryyia
AU - Fernandez, Javier
AU - Osman, Sameh M.
AU - Luque, Rafael
PY - 2023/7/15
Y1 - 2023/7/15
N2 - Diffusion dialysis (DD) process utilizing anion exchange membranes (AEMs) is an environmentally-friendly and energy-efficient technology. From acidic wastewater, DD is needed for acid recovery. This research reports the development of a series of dense tropinium-functionalized AEMs via solution casting method. Fourier Infrared transform (FTIR) spectroscopy verified the successful preparation of AEMs. The developed AEMs exhibited a dense morphology, featuring 0.98-2.42 mmol/g of ion exchange capacity (IEC), 30-81% of water uptake (WR) and 7-32% of linear swelling ratio (LSR). They displayed exceptional mechanical, thermal and chemical stability and were employed for acid waste treatment from HCl/FeCl2 mixtures via DD process. AEMs possessed 20 to 59 (10-3 m/h) and 166 to 362 of acid diffusion dialysis coefficient (UH+) and separation factor (S) respectively at 25 degrees C. Compared to DF-120 commercial membrane (UH+ = 0.004 m/h, S = 24.3), their DD efficiency was improved under identical experimental conditions.
AB - Diffusion dialysis (DD) process utilizing anion exchange membranes (AEMs) is an environmentally-friendly and energy-efficient technology. From acidic wastewater, DD is needed for acid recovery. This research reports the development of a series of dense tropinium-functionalized AEMs via solution casting method. Fourier Infrared transform (FTIR) spectroscopy verified the successful preparation of AEMs. The developed AEMs exhibited a dense morphology, featuring 0.98-2.42 mmol/g of ion exchange capacity (IEC), 30-81% of water uptake (WR) and 7-32% of linear swelling ratio (LSR). They displayed exceptional mechanical, thermal and chemical stability and were employed for acid waste treatment from HCl/FeCl2 mixtures via DD process. AEMs possessed 20 to 59 (10-3 m/h) and 166 to 362 of acid diffusion dialysis coefficient (UH+) and separation factor (S) respectively at 25 degrees C. Compared to DF-120 commercial membrane (UH+ = 0.004 m/h, S = 24.3), their DD efficiency was improved under identical experimental conditions.
KW - AEMs
KW - Bppo
KW - Diffusion dialysis
KW - Tropine
KW - Water uptake
UR - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=pure_univeritat_ramon_llull&SrcAuth=WosAPI&KeyUT=WOS:000998300400001&DestLinkType=FullRecord&DestApp=WOS
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85154022705&origin=inward
U2 - 10.1016/j.envres.2023.115932
DO - 10.1016/j.envres.2023.115932
M3 - Article
C2 - 37076029
SN - 0013-9351
VL - 229
JO - Environmental Research
JF - Environmental Research
M1 - 115932
ER -
