Materials (Nov 2021)

Water Treatment from MB Using Zn-Ag MWCNT Synthesized by Double Arc Discharge

  • Faizah S. Aljohani,
  • Mohamed Elsafi,
  • Nourhan I. Ghoneim,
  • M. Toderaş,
  • M. I. Sayyed,
  • Hamidreza Mohafez,
  • Mohammad A. Islam,
  • Mayeen Uddin Khandaker,
  • Mostafa El-Khatib

DOI
https://doi.org/10.3390/ma14237205
Journal volume & issue
Vol. 14, no. 23
p. 7205

Abstract

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A new type of nano-adsorbent zinc-silver nanoparticles ornamented by multi-walled carbon nanotubes (Zn-Ag MWCNT) was efficiently synthesized by double arc discharge using a newly designed rotating cylinder electrode. Zn-Ag MWCNT was characterized by different instrumental methods to get information about the sample shape, size, and crystallinity. Without irradiation, Zn-Ag MWCNT indicated significant potential for elimination against methylene blue (MB) which is dissolved in deionized water. When the adsorbent concentration was 0.1 g/L at normal 8 pH, the Zn-Ag MWCNTs were efficient in removing 97% of the MB from 40 mg/L that was dissolved in water for 10 min. The dye removal activity of (Zn-Ag) decorated MWCNTs was attributed to the influence of silver and zinc nanoparticles on the MWCNTs. Finally, this approach was both cost-effective and efficient.

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