Jump to main content
Jump to site search
SCHEDULED MAINTENANCE Close the message box

Maintenance work is planned for Monday 16 August 2021 from 07:00 to 23:59 (BST).

Website performance may be temporarily affected and you may not be able to access some PDFs or images. If this does happen, refreshing your web browser should resolve the issue. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 3, 2017

Exceptional sorption behaviour of porous tungsten oxide for aqueous lead

Author affiliations

Abstract

A nanoporous WO3 sorbent was found to be highly reactive towards Pb2+, exhibiting a molar sorption capacity of 42.5% and sorption half-lives as low as 47 s. The sorbent lowers the concentration of Pb2+ to less than 0.5 ppb (the instrumental detection limit), a level well below the WHO and EPA action limits. Powder X-ray diffraction and Raman spectroscopy performed on the sorbent after loading with lead demonstrated that the formation of crystalline stolzite (PbWO4) had taken place. Therefore, lead sorption occurs via a chemical reaction between Pb2+ and nanoporous WO3 accounting for the high sorption capacity. Scanning electron microscopy showed that the sorption reaction led to a large morphology change from non-descript smaller tabular particles of the sorbents to large clusters of octahedral crystallites of the stolzite product.

Graphical abstract: Exceptional sorption behaviour of porous tungsten oxide for aqueous lead

Supplementary files

Article information


Submitted
22 Dec 2016
Accepted
28 Feb 2017
First published
03 Mar 2017

Environ. Sci.: Water Res. Technol., 2017,3, 429-432
Article type
Communication

Exceptional sorption behaviour of porous tungsten oxide for aqueous lead

C. K. Perkins, T. M. Reed, Z. A. Brown and A. W. Apblett, Environ. Sci.: Water Res. Technol., 2017, 3, 429 DOI: 10.1039/C6EW00349D

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