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:10.3390/ma14237205

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

Materials (Basel). 2021 Nov 26;14(23):7205. doi: 10.3390/ma14237205.

Authors

Faizah S Aljohani¹, Mohamed Elsafi², Nourhan I Ghoneim³, M Toderaş⁴, M I Sayyed^{5

6}, Hamidreza Mohafez⁷, Mohammad A Islam⁸, Mayeen Uddin Khandaker⁹, Mostafa El-Khatib¹⁰

Affiliations

¹ Department of Chemistry, College of Science, Taibba University, Madinah P.O. Box 344, Saudi Arabia.
² Physics Department, Faculty of Science, Alexandria University, Alexandria 21511, Egypt.
³ Maritime Department, International Maritime College Oman (IMCO), Sohar 322, Oman.
⁴ Department of Physics, University of Oradea, 410 087 Oradea, Romania.
⁵ Department of Physics, Faculty of Science, Isra University, Amman 11622, Jordan.
⁶ Department of Nuclear Medicine Research, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University (IAU), Dammam P.O. Box 1982, Saudi Arabia.
⁷ Department of Biomedical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Malaysia.
⁸ Department of Electrical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Malaysia.
⁹ Centre for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, Bandar Sunway 47500, Malaysia.
¹⁰ Basic Sciences Department, Faculty of Engineering, Pharos University in Alexandria, Alexandria 21526, Egypt.

Abstract

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.

Keywords: carbon nanotubes; contaminated water; double arc discharge; dye removal; methylene blue; zinc-silver nanoparticles.