Synthesis, characterization and electrochemical properties of cation selective ion exchange composite membranes

Loại tài liệu:

Article

Tác giả:

Ishrat, U.

Đề mục:

Arabian Journal of Chemistry

Nhà xuất bản:

Elsevier Ltd.

Ngày xuất bản:

May 2019

Định dạng:

pdf

Nguồn gốc:

Arabian Journal of Chemistry, Volume 12, Issue 4 , May 2019, Pages 580-587

Ngôn ngữ:

eng

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Nội dung

In this work polystyrene based strontium phosphate membranes (SPMs) were prepared by applying different pressures. The membrane potential is measured with uni-univalent electrolytes (KCl, NaCl, and LiCl) solutions using saturated calomel electrodes (SCEs). The effective fixed charge density of these membranes is determined by the Torell, Meyer and Sievers method and it showed the dependence of membrane potential on the porosity, the charge on the membrane matrix, charge and size of permeating ions. The membranes are characterized by X-ray diffraction, scanning electron microscopy and IR spectroscopy. The order of surface charge density for electrolytes is KCl > NaCl > LiCl. Other parameters such as transport number, distribution coefficient, charge effectiveness and related parameters are calculated. The membrane was found to be mechanically stable, and can be operated over a wide pH range.

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Synthesis, characterization and electrochemical properties of cation selective ion exchange composite membranes

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