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Issue 7, 2015
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The impact of carbon nanomaterials on the development of phenanthrene catabolism in soil

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Abstract

This study investigates the impact of different types of carbon nanomaterials (CNMs) namely C60, multi-walled carbon nanotubes (MWCNTs) and fullerene soot on the catabolism of 14C-phenanthrene in soil by indigenous microorganisms. Different concentrations (0%, 0.01%, 0.1% and 1%) of the different CNMs were blended with soil spiked with 50 mg kg−1 of 12C-phenanthrene, and aged for 1, 25, 50 and 100 days. An increase in the concentration of MWCNT- and FS-amended soils showed a significant difference (P = 0.014) in the lag phase, maximum rates and overall extent of 14C-phenanthrene mineralisation. Microbial cell numbers did not show an obvious trend, but it was observed that control soils had the highest population of heterotrophic and phenanthrene degrading bacteria at all time points.

Graphical abstract: The impact of carbon nanomaterials on the development of phenanthrene catabolism in soil

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Article information


Submitted
06 Apr 2015
Accepted
27 May 2015
First published
28 May 2015

Environ. Sci.: Processes Impacts, 2015,17, 1302-1310
Article type
Paper
Author version available

The impact of carbon nanomaterials on the development of phenanthrene catabolism in soil

A. O. Oyelami and K. T. Semple, Environ. Sci.: Processes Impacts, 2015, 17, 1302
DOI: 10.1039/C5EM00157A

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