Sorption of peat humic acids to multi-walled carbon nanotubes.

  title={Sorption of peat humic acids to multi-walled carbon nanotubes.},
  author={Xilong Wang and Liang Shu and Yanqi Wang and Bingbing Xu and Yingchen Bai and Shu Tao and Baoshan Xing},
  journal={Environmental science & technology},
  volume={45 21},
Sorption of humic acids (HAs) from a peat soil by multiwalled carbon nanotubes (MWCNTs) was examined in this work. Sorption rate of HAs to MWCNTs was dominantly controlled by their diffusion from liquid-MWCNT boundary to MWCNT surfaces. Size exclusion chromatography analysis did not detect preferential sorption of HA fractions to MWCNTs at equilibrium, whereas the components with lower molecular weight in some HA fractions (e.g., HA1) would more preferentially be sorbed to MWCNTs at the initial… CONTINUE READING
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