Synthesis and application of modified membranes for efficient cationic and anionic dye elimination

Meriem Mansour Hafifi; Abdelkader Chougui; Mohammed Amin Chemrak; Aissa Belouatek

doi:10.18540/jcecvl9iss10pp17578

Autores

Meriem Mansour Hafifi Laboratory of SEAMM Faculty of Science and Technology, University of Mostaganem Abdelhamid Ibn Badis (UMAB), B.P. 188, Mostaganem 27000, Algeria
Abdelkader Chougui Ibn Khaldoun University of Tiaret, 14000, Algeria
Mohammed Amin Chemrak Faculty of Sciences and Technology, University of Tissemsilt, Road of Bougara, Ben Hamouda, Tissemsilt 38004, Algeria
Aissa Belouatek Laboratory of SEAMM Faculty of Science and Technology, University of Mostaganem Abdelhamid Ibn Badis (UMAB), B.P. 188, Mostaganem 27000, Algeria

DOI:

https://doi.org/10.18540/jcecvl9iss10pp17578

Palavras-chave:

Ceramic membranes. Filtration. Dye removal. Efficiencies. Sol-gel.

Resumo

This study focuses on developing ceramic ultrafiltration membranes using locally sourced kaolin clay and feldspar. An active layer composed of graphene and alkoxide is added to enhance the performance of these clay supports. This layer is thin, porous, and can vary in thickness. The support and filter layer's porous properties are characterized using SEM, DRX, ATG/ATD, XPS, and FTIR techniques. Filtration tests are conducted on modified porous tubular supports using cationic and anionic dye solutions. The filtration is performed tangentially at a pressure of 3.5 bar and a processing time of 120 minutes. The retention rates of the colored solutions are measured using a UV-visible spectrophotometer. The results show a 100% retention rate for supranol yellow and orange II at a concentration of 10^-4 M, while for crystal violet and malachite green, the retention rates are 92.03% and 95.30%, respectively.