Issue 10, 2020

Enhanced sieving of cellulosic microfiber membranes via tuning of interlayer spacing

Abstract

Functionally active membranes made of cellulosic microfibers (CMFs) have emerged as promising sorbents for the removal of nano-sized pollutants from water. The adsorption efficiency of these membranes has been increased through surface functionalization of pristine-CMFs using various chemistries. Still, until now, the produced materials consist of highly dense 2D networks that make the membranes inadequate as filters because of the very short interlayer spacing. Here, we report on novel tuned CMF functionalization procedures, namely carboxylation, phosphorylation, and methylation, that can overcome this problem by modulating the interlayer separation in the 2D membranes. To test our approach, fabricated nanolaminate membranes with grafted functional groups were subjected for the separation of metal ions, a dye and two drugs, and their separation efficiencies are being correlated with the degree of functionalization and tuned intercapillary spacing.

Graphical abstract: Enhanced sieving of cellulosic microfiber membranes via tuning of interlayer spacing

Supplementary files

Article information

Article type
Paper
Submitted
10 iyn 2020
Accepted
12 avq 2020
First published
13 avq 2020

Environ. Sci.: Nano, 2020,7, 2941-2952

Enhanced sieving of cellulosic microfiber membranes via tuning of interlayer spacing

Z. Karim, S. Monti, G. Barcaro, A. Svedberg, M. A. Ansari and S. Afrin, Environ. Sci.: Nano, 2020, 7, 2941 DOI: 10.1039/D0EN00613K

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