Fabrication of a Cost Effective Ceramic Microfiltration Membrane by Utilizing Local Kashmir Clay

IF 1.5 4区材料科学 Q3 MATERIALS SCIENCE, CERAMICS

Transactions of the Indian Ceramic Society Pub Date : 2021-01-02 DOI:10.1080/0371750X.2020.1864663

Nasir Ahmed, F. Mir

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引用次数: 3

Abstract

ABSTRACT In this work, we have reported the preparation of a flat circular ceramic membrane (53 mm diameter and 5 mm thick) by paste casting method from locally available Kashmir clay. The membrane was obtained by sintering the clay disc at 850oC for 5 h. The raw material and the membrane were characterized by X-ray fluorescence (XRF), X-ray diffraction (XRD), thermo-gravimetric analysis (TGA), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), porosity, and pure water permeability. The XRF and XRD analysis of the clay confirmed the presence of components required for ceramic membrane preparation. Average pore size, apparent porosity, and pure water permeability of the membrane was obtained as 5.88 µm, 24.30%, and 0.9865 l.m–2.h–1.kPa–1, respectively. Chemical stability was carried out by keeping the membrane in HCl (pH=1) and NaOH (pH=14) solutions for one week. The prepared membrane showed excellent chemical resistance in both the media. The overall fabrication cost of the membrane was estimated as 301 $/m2. These results indicate that the clay used in this work could serve as an alternative raw material to kaolin based ceramic microfiltration membranes for cheaper use in different chemical and biochemical processes. GRAPHICAL ABSTRACT

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利用当地喀什米尔粘土制备低成本陶瓷微滤膜

在这项工作中，我们报道了用当地可用的克什米尔粘土用浆糊铸造法制备扁平圆形陶瓷膜(直径53毫米，厚5毫米)。通过x射线荧光(XRF)、x射线衍射(XRD)、热重分析(TGA)、傅里叶变换红外(FTIR)光谱、扫描电镜(SEM)、孔隙率和纯水渗透率等手段对原料和膜进行表征。对粘土的XRF和XRD分析证实了制备陶瓷膜所需成分的存在。膜的平均孔径、表观孔隙率和纯水渗透率分别为5.88µm、24.30%和0.9865 l.m-2.h-1。分别kPa-1。将膜在HCl (pH=1)和NaOH (pH=14)溶液中保持一周，以观察其化学稳定性。所制备的膜在两种介质中均表现出优异的耐化学性。该膜的总制造成本估计为301美元/平方米。这些结果表明，本研究中使用的粘土可以作为高岭土基陶瓷微滤膜的替代原料，用于不同的化学和生化过程，成本更低。图形抽象

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来源期刊

Transactions of the Indian Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

2.40

自引率

8.30%

发文量

审稿时长

2.3 months

期刊介绍： Transactions of the Indian Ceramic Society is a quarterly Journal devoted to current scientific research, technology and industry-related news on glass and ceramics. The Journal covers subjects such as the chemical, mechanical, optical, electronic and spectroscopic properties of glass and ceramics, and characterization of materials belonging to this family. The Editor invites original research papers, topical reviews, opinions and achievements, as well as industry profiles for publication. The contributions should be accompanied by abstracts, keywords and other details, as outlined in the Instructions for Authors section. News, views and other comments on activities of specific industries and organizations, and also analyses of industrial scenarios are also welcome.