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Silver nanoparticle-alginate composite beads for point-of-use drinking water disinfection.

Publication ,  Journal Article
Lin, S; Huang, R; Cheng, Y; Liu, J; Lau, BLT; Wiesner, MR
Published in: Water research
August 2013

Silver nanoparticles (AgNPs)-alginate composite beads were synthesized using three different approaches as filler materials of packed columns for simultaneous filtration-disinfection as an alternative portable water treatment process. The prepared composite beads were packed into a column through which Escherichia coli containing water was filtered to evaluate the disinfection efficacy. Excellent disinfection performance (no detectable viable colony) was achieved with a hydraulic retention time (HRT) as short as 1 min (the shortest tested) with the SGR (Simultaneous-Gelation-Reduction) and AR (Adsorption-Reduction) beads that were prepared using in situ reduction of Ag(+). Comparatively, the SGR beads released significantly less Ag(+)/AgNPs than the AR beads did within the same HRT. From the results of this study it was identified that SGR may be the best choice among all three different synthesis approaches in that the SGR beads can achieve satisfactory bactericidal performance with a relatively low material consumption rate.

Duke Scholars

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Published In

Water research

DOI

EISSN

1879-2448

ISSN

0043-1354

Publication Date

August 2013

Volume

47

Issue

12

Start / End Page

3959 / 3965

Related Subject Headings

  • Spectroscopy, Fourier Transform Infrared
  • Spectrophotometry, Ultraviolet
  • Silver
  • Nanocomposites
  • Microspheres
  • Metal Nanoparticles
  • Hexuronic Acids
  • Glucuronic Acid
  • Environmental Engineering
  • Drinking Water
 

Citation

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Lin, S., Huang, R., Cheng, Y., Liu, J., Lau, B. L. T., & Wiesner, M. R. (2013). Silver nanoparticle-alginate composite beads for point-of-use drinking water disinfection. Water Research, 47(12), 3959–3965. https://doi.org/10.1016/j.watres.2012.09.005
Lin, Shihong, Rixiang Huang, Yingwen Cheng, Jie Liu, Boris L. T. Lau, and Mark R. Wiesner. “Silver nanoparticle-alginate composite beads for point-of-use drinking water disinfection.Water Research 47, no. 12 (August 2013): 3959–65. https://doi.org/10.1016/j.watres.2012.09.005.
Lin S, Huang R, Cheng Y, Liu J, Lau BLT, Wiesner MR. Silver nanoparticle-alginate composite beads for point-of-use drinking water disinfection. Water research. 2013 Aug;47(12):3959–65.
Lin, Shihong, et al. “Silver nanoparticle-alginate composite beads for point-of-use drinking water disinfection.Water Research, vol. 47, no. 12, Aug. 2013, pp. 3959–65. Epmc, doi:10.1016/j.watres.2012.09.005.
Lin S, Huang R, Cheng Y, Liu J, Lau BLT, Wiesner MR. Silver nanoparticle-alginate composite beads for point-of-use drinking water disinfection. Water research. 2013 Aug;47(12):3959–3965.
Journal cover image

Published In

Water research

DOI

EISSN

1879-2448

ISSN

0043-1354

Publication Date

August 2013

Volume

47

Issue

12

Start / End Page

3959 / 3965

Related Subject Headings

  • Spectroscopy, Fourier Transform Infrared
  • Spectrophotometry, Ultraviolet
  • Silver
  • Nanocomposites
  • Microspheres
  • Metal Nanoparticles
  • Hexuronic Acids
  • Glucuronic Acid
  • Environmental Engineering
  • Drinking Water