Issue 87, 2015

Protein mediated textile dye filtration using graphene oxide–polysulfone composite membranes

Abstract

Here we report graphene oxide (GO) concentration dependent protein binding (BSA) and dye filtration (RO-16) capabilities of polysulfone–GO composite membranes under different pH conditions (2, 7 and 10). The membranes were fabricated with different GO concentrations (1, 2, 4 and 8% w/w) and were successfully characterized for their physical and chemical properties, as well as for their performance ability. The best BSA binding and dye rejection rates were observed with 2% GO membrane at pH = 10, which were 95% and 78.26% respectively, suggesting that 2% is the optimal concentration. Further, considering the fact that RO-16 dye is acidic friendly, contact time studies were carried out with 2% GO membranes at pH = 2 and pH = 10. It was observed that 2% GO–polysulfone membrane at pH = 2 shows the highest dye rejection rate of 87.4%, supporting the importance of contact time in filtration technology.

Graphical abstract: Protein mediated textile dye filtration using graphene oxide–polysulfone composite membranes

Supplementary files

Article information

Article type
Paper
Submitted
06 Jul 2015
Accepted
10 Aug 2015
First published
10 Aug 2015

RSC Adv., 2015,5, 71011-71021

Author version available

Protein mediated textile dye filtration using graphene oxide–polysulfone composite membranes

V. R. S. S. Mokkapati, D. Y. Koseoglu Imer, N. Yilmaz, V. Ozguz and I. Koyuncu, RSC Adv., 2015, 5, 71011 DOI: 10.1039/C5RA13131F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements