Issue 92, 2015
From the journal:

RSC Advances

Capture of radioactive cations from water using niobate nanomaterials with layered and tunnel structures†

Jin Sun,*a   Long Liu,a   Xiaoliang Zhao,a   Shuanglei Yang,b   Sridhar Komarnenic  and  Dongjiang Yang*ad  

* Corresponding authors

a Collaborative Innovation Centre for Marine Biomass Fibers, Materials and Textiles of Shandong Province, College of Chemistry, Chemical and Environmental Engineering, Qingdao University, Qingdao 266071, China
E-mail: d.yang@qdu.edu.cn

b State Key Laboratory of Powder Metallurgy, Central South University, Changsha, China 410083

c Materials Research Institute and Department of Ecosystem Science and Management, The Pennsylvania State University, University Park, Pennsylvania 16802, USA

d Queensland Micro- and Nanotechnology Centre (QMNC), Griffith University, Nathan, Brisbane, QLD 4111, Australia

Abstract

Niobates with one-dimensional (1D) morphology, layered KNb3O8 nanorods and tunnel structured Na2Nb2O6·H2O nanofibers, are fabricated readily by a reaction between niobium oxide and alkali hydroxides under hydrothermal conditions. They exhibit ideal properties for removal of radioactive cations such as Sr2+, Ba2+ (as simulant for 226Ra2+) and Cs+ ions from wastewater through an ion exchange process. Compared with the Na2Nb2O6·H2O nanofibers, the KNb3O8 nanorods displayed better performance for the irreversible entrapment of the toxic cations, particularly Ba2+ cations, due to the deformation of the layer structure. Besides, these 1D niobates are acid resistant with selective uptake of the radioactive cations in the presence of a large excess of K+ or Na+ ions.

Graphical abstract: Capture of radioactive cations from water using niobate nanomaterials with layered and tunnel structures

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/C5RA10907H
Article type
Paper
Submitted
09 Jun 2015
Accepted
28 Aug 2015
First published
01 Sep 2015

RSC Adv., 2015,5, 75354-75359

Permissions

Request permissions

Capture of radioactive cations from water using niobate nanomaterials with layered and tunnel structures

J. Sun, L. Liu, X. Zhao, S. Yang, S. Komarneni and D. Yang, RSC Adv., 2015, 5, 75354 DOI: 10.1039/C5RA10907H

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