Abstract

The production of low-cost ceramic membranes from natural materials has attracted more and more attention in recent years, as it allows them to reduce their cost while maintaining their advantages. The aim of this study was the synthesis of ceramic membrane supports from kaolin of Ukrainian origin and their characterization. The choice of such a raw material as kaolin was dictated by its characteristics, which were investigated by X-ray and chemical analysis, the nitrogen adsorption/desorption method and thermogravimetric analysis. Ceramic membrane supports were prepared by dry pressing method followed by sintering at 950 °C. The phase composition, morphological structure and structural-adsorption characteristics of the synthesized supports has been established. The effect of the content of boric acid on the electrical resistance of the membrane support has been studied. The ceramic supports after modification of silver demonstrated bactericidal and antifungal effects on Gram-negative (Escherichia coli) and Candida albicans wound pathogens.

摘要

近年来，用天然材料生产低成本陶瓷膜引起了越来越多的关注，因为它可以在保持优势的同时降低成本。本研究的目的是从乌克兰原产的高岭土合成陶瓷膜载体及其表征。高岭土等原材料的选择取决于其特性，通过 X 射线和化学分析、氮吸附/解吸法和热重分析对其进行了研究。陶瓷膜载体通过干压法制备，然后在 950 °C 下烧结。已经确定了合成载体的相组成、形态结构和结构吸附特性。研究了硼酸含量对膜载体电阻的影响。银改性后的陶瓷载体对革兰氏阴性菌（大肠杆菌）和白色念珠菌伤口病原体具有杀菌和抗真菌作用。