Jump to main content
Jump to site search

Issue 27, 2014
Previous Article Next Article

Designed hierarchical MnO2 microspheres assembled from nanofilms for removal of heavy metal ions

Author affiliations

Abstract

Hierarchical MnO2 microspheres assembled from nanofilms are fabricated through an environmental route and subsequent drying under vacuum. Adsorption kinetics and thermodynamics are investigated in detail. The unique nanofilm assembly structure with high BET surface area of 252.82 m2 g−1 can allow for higher exposure of adsorption sites to adsorbate molecules than a solid one, and thus results in the high removal efficiency of heavy metal ions. The final removal efficiency of Pb(II), Cd(II), Cu(II) and Cr(VI) from acid aqueous solutions can reach 100%, 99.6%, 99.1% and 95.2%, respectively. Moreover, the relatively large submicrometer particles are easy to recover after adsorption. Therefore, it may serve as an ideal candidate for heavy metal ion removal in water treatment.

Graphical abstract: Designed hierarchical MnO2 microspheres assembled from nanofilms for removal of heavy metal ions

Back to tab navigation

Article information


Submitted
06 Feb 2014
Accepted
04 Mar 2014
First published
05 Mar 2014

RSC Adv., 2014,4, 14048-14054
Article type
Paper
Author version available

Designed hierarchical MnO2 microspheres assembled from nanofilms for removal of heavy metal ions

Y. Guo, H. Guo, Y. Wang, L. Liu and W. Chen, RSC Adv., 2014, 4, 14048
DOI: 10.1039/C4RA01044B

Social activity

Search articles by author

Spotlight

Advertisements