Responsive Membranes for Water Treatment

Yang, Qian; Wickramasinghe, S. Ranil

doi:10.1002/9781118389553.ch6

Cited by 4 publications

(2 citation statements)

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“…The physical coating with a conductive polymer generally leads to variations in membrane swelling degree and changes in membrane permselectivity [ 33 , 34 ]. Alternatively, functional polymers, as well known as polymer brushes , can be attached in a controlled manner on the membrane surfaces or within membrane pores by physical adsorption or covalent bonds [ 35 , 36 , 37 , 38 ]. Polymer brushes can be covalently attached to membrane surfaces and pores either by ‘grafting-from’ methods or by ‘grafting-to’ techniques.…”

Section: Electro-conductive Membranesmentioning

confidence: 99%

Electro-Conductive Membranes for Permeation Enhancement and Fouling Mitigation: A Short Review

et al. 2017

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The research on electro-conductive membranes has expanded in recent years. These membranes have strong prospective as key components in next generation water treatment plants because they are engineered in order to enhance their performance in terms of separation, flux, fouling potential, and permselectivity. The present review summarizes recent developments in the preparation of electro-conductive membranes and the mechanisms of their response to external electric voltages in order to obtain an improvement in permeation and mitigation in the fouling growth. In particular, this paper deals with the properties of electro-conductive polymers and the preparation of electro-conductive polymer membranes with a focus on responsive membranes based on polyaniline, polypyrrole and carbon nanotubes. Then, some examples of electro-conductive membranes for permeation enhancement and fouling mitigation by electrostatic repulsion, hydrogen peroxide generation and electrochemical oxidation will be presented.

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Section: Electro-conductive Membranesmentioning

confidence: 99%

Electro-Conductive Membranes for Permeation Enhancement and Fouling Mitigation: A Short Review

et al. 2017

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“…Recent studies have investigated the fabrication of membranes which responded to some common triggers, including changes in temperature, pH, ionic strength, light, electric and magnetic field [1,[4][5][6][7][8] . In contrast to the traditional membranes, the smart/responsive membranes can be tuned by changing the conformation of responsive groups which lead to reversible microphase segregation upon the application of external stimuli [9] . For example, the oscillation between a more hydrophobic and hydrophilic membrane surface can result in the desorption of adsorbed fouling under pH stimuli [10] .…”

Section: Introductionmentioning

confidence: 99%