نتایج جستجو برای: cation exchange membranes

تعداد نتایج: 328085  

2000
MOHAMED MAHMOUD NASEF HAMDANI SAIDI HUSSIN MOHD NOR

Thermal stability of cation exchange, PFA-g-polystyrene sulfonic acid membranes prepared by radiation-induced graft copolymerization of styrene onto PFA films followed by sulfonation was studied by thermal gravimetric analysis (TGA) and oven heat treatment. The tested samples included original and grafted PFA films as reference materials. All the membranes showed multistep decomposition pattern...

2016
Kalpana Virendra Singh

Transport phenomenon across membranes are very important as they work as guiding principles for drug permeation studies across biological membranes. Classical thermodynamics is confined to the systems of equilibrium i.e. to reversible processes only and cannot be applied to the irreversible systems where variables defining the systems are changing with time and situation. The utility of irrever...

2016
Z. H. Shi T. J. Dou H. Zhang H. X. Huang N. Zeng

Abstract—The contamination of significant quantities of soils and sediments with uranium and other actinide elements as a result of nuclear activity poses many environmental risks. The electrokinetic process is one of the most promising remediation techniques for sludge, sediment, and saturated or unsaturated soils contaminated with heavy metals and radionuclides. However, secondary waste is a ...

Journal: :Journal of Membrane Science 2021

The transport selectivity of different cations through cation exchange membranes (CEMs) could be estimated with the partitioning factor (Kji) and mobility ratio in membrane (uim/ujm), which turn can related to corresponding conductivity dimensional swelling data [Journal Membrane Science, 2020, 597, 117645]. This method has been validated two hydrocarbon polymer-based CEMs, obtained K+/Na+ equa...

Journal: :Desalination 2022

This work presents a versatile chemistry platform for the fabrication of hierarchical cation and anion exchange membranes (hCEMs hAEMs) with tuneable transport properties. A strong focus was put onto developing cost-effective fabricated through sustainable easily scalable process, performance at least as good industry standard materials. Hierarchical ion were by coating UV crosslinking an acryl...

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