Self-assembled embedding of ion exchange materials into nanofiber-based hydrogel framework for fluoride capture

Zhao, Yan; Lü, Wenjing; Mamrol, Natalie; Croes, T.; Mai, Zhaohuan; Houtmeyers, Sofie; Dewil, Raf; Zhang, Yang; Yang, Xing; Bruggen, Bart Van der

doi:10.1016/j.cej.2021.134201

Cited by 39 publications

(9 citation statements)

References 70 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As the quantity of 1,4-diazabicyclo [2.2.2] octane increases, the water contact angle of AEMs increases from 58.2° for the QPSF-0 AEM to a maximum of 79.8° for QPSF-1.25. This occurrence can be interpreted in terms of the Cassie–Baxter state of the extended Young’s model: when the hydrophobic surface roughness increases, the hydrophobicity of the resulting membrane surface tends to increase as well. , …”

Section: Results and Discussionmentioning

confidence: 99%

Internally Cross-Linked Polysulfone-Based Anion Exchange Membranes with pH Stability for Carboxylate Separation

Lan,

Huang,

Zhou

et al. 2023

ACS EST Water

Self Cite

View full text Add to dashboard Cite

Section: Results and Discussionmentioning

confidence: 99%

Internally Cross-Linked Polysulfone-Based Anion Exchange Membranes with pH Stability for Carboxylate Separation

Lan,

Huang,

Zhou

et al. 2023

ACS EST Water

Self Cite

View full text Add to dashboard Cite

“…Membrane-based process is a promising separation technology with high efficiency, scalability, low operation cost, and low carbon footprint. − In recent years, the research and industrial application of membrane-based technology has experienced a rapid growth in ion removal. Among them, ultrafiltration (UF), , nanofiltration (NF), , and reverse osmosis (RO) , are widely utilized in pressure-driven membrane separation processes (Figure e).…”

Section: Introductionmentioning

confidence: 99%

Progress of Ultrafiltration-Based Technology in Ion Removal and Recovery: Enhanced Membranes and Integrated Processes

et al. 2023

Self Cite

View full text Add to dashboard Cite

Toxic ions from industrial wastewater entail important challenges to the environment. Ultrafiltration (UF) with low operation pressure and high permeability has been widely used for macromolecules and suspended solids separation. However, UF cannot be directly used to separate ions from wastewater due to the large pore size of UF membranes. Recently, the design of enhanced UF membrane structures and UF-based integrated processes expands the application of UF for ion removal. This review aims to summarize the latest developments of UF membranes preparation as well as integrated UF processes in ion removal. First, the advanced materials for UF membranes preparation are discussed, with specific attention on active nanomaterials including inorganic materials, organic materials, and biomaterial-based materials. The design principles such as pore size control and composite thin layer fabrication of enhanced UF-based membranes for ion removal are illustrated. Next, integrated processes such as micellar-enhanced UF, polymer-enhanced UF, electro-driven UF, and other UF-based combined processes are reviewed. Finally, current application limitations and future perspectives in the enhanced UF membrane for ion removal are discussed. This review presents potential approaches for the preparation and application of enhanced UF membranes in sustainable ion removal from wastewaters.

show abstract

“…With the expansion of the social economy and industry, the resulting environmental issues have pushed researchers to call for stricter standards in the fields of resource recovery, wastewater treatment, and seawater desalination in order to meet the requirements of a sustainable green economy [ 1 , 2 ]. A typical scenario is the discharge of highly concentrated fluoride, bromide, nitrate, and sulfate byproducts originating from many manufacturing procedures, such as the petroleum, paper, smelting, photovoltaic, and semiconductor industries [ 3 , 4 ]. Arbitrary discharge of these anions into surface water results in toxic effects on the environment and human health.…”

Section: Introductionmentioning

confidence: 99%

Poly(alkyl-biphenyl pyridinium)-Based Anion Exchange Membranes with Alkyl Side Chains Enable High Anion Permselectivity and Monovalent Ion Flux

et al. 2023

View full text Add to dashboard Cite

Poly(alkyl-biphenyl pyridinium)-based anion exchange membranes with alkyl side chains were synthesized for permselective anion separation. By altering the length of the grafted side chain, the hydrophilicity and other attributes of the membranes could be controlled. The QDPAB-C5 membrane with the best comprehensive performance exhibited a Cl− ion flux of 3.72 mol m−2 h−1 and a Cl−/SO42− permselectivity of 15, which are significantly better than the commercial Neosepta ACS membrane. The QDPAB-C5 membranes with distinct microscopic phase separation structures formed interconnected hydrophilic/hydrophobic ion channels and exhibited excellent ion flux and permselectivity for other anionic systems (NO3−/SO42−, Br−/SO42−, F−/SO42−, NO3−/Cl−, Br−/Cl−, and F−/Cl−) as well. Furthermore, the influence of alkyl side chain length on the membranes’ ion flux and permselectivity in electrodialysis was investigated, which may be attributed to the alterations in ion channels and hydrophobic regions of the membranes. This work provides an effective strategy for the development of monovalent anion permselective membranes.

show abstract

Self-assembled embedding of ion exchange materials into nanofiber-based hydrogel framework for fluoride capture

Cited by 39 publications

References 70 publications

Internally Cross-Linked Polysulfone-Based Anion Exchange Membranes with pH Stability for Carboxylate Separation

Internally Cross-Linked Polysulfone-Based Anion Exchange Membranes with pH Stability for Carboxylate Separation

Progress of Ultrafiltration-Based Technology in Ion Removal and Recovery: Enhanced Membranes and Integrated Processes

Poly(alkyl-biphenyl pyridinium)-Based Anion Exchange Membranes with Alkyl Side Chains Enable High Anion Permselectivity and Monovalent Ion Flux

Contact Info

Product

Resources

About