Jump to main content
Jump to site search

Issue 116, 2016

Rapid and efficient removal of arsenic from water using electrospun CuO–ZnO composite nanofibers

Author affiliations

Abstract

Arsenic (As) contamination in water poses a serious threat to public health and other life on earth. To remove arsenic effectively from water, we synthesized CuO–ZnO composite nanofibers using a simple electrospinning technique assisted by post-calcination. The characterization of nanofibers was performed using field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) analysis. The as-prepared nanofibers were further employed as nanoadsorbents for efficient removal of As from water. The favorability of the adsorption process and the maximum adsorption capacity were determined using Langmuir and Freundlich isotherm models. Moreover, the kinetic studies were performed to depict the rate of As sorption onto CuO–ZnO nanofibers. The initial pH of water and the presence of competing anions greatly affect the adsorption efficiency. Therefore, the adsorption experiments were conducted in varying pH environments and with different coexisting anions, such as phosphate, and nitrite. Such a nanofibers-based approach is quite interesting and can be beneficial in combating the current challenges of water pollution.

Graphical abstract: Rapid and efficient removal of arsenic from water using electrospun CuO–ZnO composite nanofibers

Supplementary files

Article information


Submitted
27 Sep 2016
Accepted
01 Dec 2016
First published
02 Dec 2016

RSC Adv., 2016,6, 115021-115028
Article type
Paper

Rapid and efficient removal of arsenic from water using electrospun CuO–ZnO composite nanofibers

D. Malwal and P. Gopinath, RSC Adv., 2016, 6, 115021 DOI: 10.1039/C6RA24023B

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

Search articles by author

Spotlight

Advertisements