Issue 3, 2020

Nanodiamonds as a state-of-the-art material for enhancing the gamma radiation resistance properties of polymeric membranes

Abstract

We report, for the first time, the development of gamma radiation resistant polysulfone (Psf)–nanodiamond (ND) composite membranes with varying concentrations of NDs, ranging up to 2 wt% of Psf. Radiation stability of the synthesized membranes was tested up to a dose of 1000 kGy. To understand the structure–property correlationship of these membranes, multiple characterization techniques were used, including field-emission scanning electron microscopy, atomic force microscopy, drop shape analysis, Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, gel permeation chromatography, positron annihilation spectroscopy, and small angle X-ray scattering. All the composite membranes exhibited enhanced radiation resistance properties, with 0.5% loading of NDs as the optimum. Compared to the radiation stability of Psf membranes up to a dose of 100 kGy, the optimum composite membranes are found to be stable up to a radiation dose of 500 kGy, owing to the unique surface chemistry of NDs and interfacial chemistry of Psf–ND composites. Experimental findings along with the Monte Carlo simulation studies confirmed a five times enhanced life-span of the composite membranes in an environment of the intermediate level radioactive waste, compared to the control Psf membrane.

Graphical abstract: Nanodiamonds as a state-of-the-art material for enhancing the gamma radiation resistance properties of polymeric membranes

Supplementary files

Article information

Article type
Paper
Submitted
13 Jun 2019
Accepted
29 Jan 2020
First published
31 Jan 2020
This article is Open Access
Creative Commons BY-NC license

Nanoscale Adv., 2020,2, 1214-1227

Nanodiamonds as a state-of-the-art material for enhancing the gamma radiation resistance properties of polymeric membranes

A. Bedar, N. Goswami, A. K. Singha, V. Kumar, A. K. Debnath, D. Sen, V. K. Aswal, S. Kumar, D. Dutta, B. Keshavkumar, S. Ghodke, R. Jain, B. G. Singh, P. K. Tewari, R. C. Bindal and S. Kar, Nanoscale Adv., 2020, 2, 1214 DOI: 10.1039/C9NA00372J

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, 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 commercial 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