Jump to main content
Jump to site search


Removal of hexavalent chromium from potable drinking water by polyaniline coated bacterial cellulose mat

Abstract

Polyaniline based composites serve as adsorbent materials for removal of hazardous heavy metal impurities like Cr(VI) from waste water. However, earlier reports on polyaniline (PANi) based adsorbents mainly focussed on Cr(VI) removal from acidic aqueous solutions (pH 1-5). Nonetheless, in case of potable water, Cr(VI) removal is needed to be performed at neutral pH. In this study, we demonstrated Cr(VI) removal from drinking water at neutral pH using PANi/bacterial cellulose (BC) mat. The rate limiting step observed at neutral pH was desorption of reduced Cr(III) from PANi/BC adsorbent. This is contrary to that found in acidic solution where adsorption of Cr(VI) was reported to be the slowest step. The aforementioned claim was confirmed with the help of Langmuir-Hinshelwood Kinetic model for adsorption-reduction-desorption processes.

Back to tab navigation

Supplementary files

Publication details

The article was received on 25 Apr 2018, accepted on 13 Jul 2018 and first published on 25 Jul 2018


Article type: Paper
DOI: 10.1039/C8EW00255J
Citation: Environ. Sci.: Water Res. Technol., 2018, Accepted Manuscript
  •   Request permissions

    Removal of hexavalent chromium from potable drinking water by polyaniline coated bacterial cellulose mat

    K. Jahan, N. Kumar and V. Verma, Environ. Sci.: Water Res. Technol., 2018, Accepted Manuscript , DOI: 10.1039/C8EW00255J

Search articles by author

Spotlight

Advertisements