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Plasma modification of the anion-exchange membrane and its influence on fluoride removal from water

机译：阴离子交换膜的等离子体改性及其对水中除氟的影响

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摘要

Removal of extra fluoride ion in drinking water is important for the human health.Fluoride ion removal from aqueous solution is studied with plasma modified and pristine AFX anion-exchange membranes by Donnan dialysis(DD)method as a function of concentration,pH and membrane structure.The flux values(J)and recovery factor(RF)of fluoride before and after the modification are obtained.The flux values and recovery factors for plasma modified AFX membrane are higher than that of pristine membrane.This can be explained by change of wettability and morphology in the plasma modified membrane.The pH optimization was carried out between 3 and 9 and pH 5.5 used for all experiments.The surface morphology of the plasma modified and pristine membranes are characterized by SEM,AFM and contact angle,respectively.
机译：用Donnan透析（DD）方法研究血浆修饰的和原始的AFX阴离子交换膜对水溶液中氟离子的去除作用，该方法是浓度，pH和膜结构的函数获得了改性前后氟化物的通量值（J）和回收率（RF）。等离子改性AFX膜的通量值和回收率高于原始膜，这可以用润湿性的变化来解释在所有实验中均在3至9和pH 5.5范围内对pH进行了优化。分别用SEM，AFM和接触角表征了质膜和原始膜的表面形态。

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