Highly Efficient Visible Light Photodegradation of Cr(VI) Using Electrospun MWCNTs-Fe3O4@PES Nanofibers

Catalysts

Simona Tuckute¹  Sarunas Varnagiris¹  Alaa Mohamed²  Shady Ali²  Samy Yousef³  Bahaa M. Kamel⁴  Mantas Sriubas⁵  Mohammed Ali Abdelnaby⁶ 

[1] Center for Hydrogen Energy Technologies, Lithuanian Energy Institute, Breslaujos 3, 44403 Kaunas, Lithuania;Department of Mechatronics, Canadian International College, Fifth Settlement, New Cairo 11865, Egypt;Department of Production Engineering, Faculty of Mechanical Engineering and Design, Kaunas University of Technology, LT-51424 Kaunas, Lithuania;Mechanical Engineering Department, National Research Centre, Giza 12622, Egypt;Physics Department, Kaunas University of Technology, LT-51368 Kaunas, Lithuania;Production Engineering and Printing Technology Department, Akhbar El Yom Academy, Giza 12655, Egypt;

关键词: iron oxide;    MWCNTs;    photocatalysis;    Cr(VI);    visible light;   

DOI  :  10.3390/catal11070868

来源: DOAJ

【 摘 要 】

The development of highly efficient photocatalysis has been prepared by two different methods for the photodegradation of Cr(VI) from an aqueous solution under visible light. The electrospun polyethersulfone (PES)/iron oxide (Fe₃O₄) and multi-wall carbon nanotubes (MWCNTs) composite nanofibers have been prepared using the electrospinning technique. The prepared materials were characterized by SEM and XRD analysis. The result reveals the successful fabrication of the composite nanofiber with uniformly and smooth nanofibers. The effect of numerous parameters were explored to investigate the effects of pH value, contact time, concentration of Cr(VI), and reusability. The MWCNTs-Fe₃O₄@PES composite nanofibers exhibited excellent photodegradation of Cr(VI) at pH 2 in 80 min. The photocatalysis materials are highly stable without significant reduction of the photocatalytic efficiency of Cr(VI) after five cycles. Therefore, due to its easy separation and reuse without loss of photocatalytic efficiency, the photocatalysis membrane has tremendous potential for the removal of heavy metals from aqueous solutions.

【 授权许可】

Unknown