Fabrication of Efficient Calix[4]arene-Adorned Magnetic Nanoparticles for the Removal of Cr(VI)/As(V) anions from Aqueous Solutions. (21st April 2022)

• Record Type: Journal Article
• Authors: Sayin, Serkan
• Is Part Of: Polycyclic aromatic compounds. Volume 42:Number 4(2022)
• Page Start: 1023
• Page End: 1034
• Publication Date: 2022-04-21
• Subjects: Calix[4]arene -- syntheses -- magnetic nanoparticles -- sorption -- dichromate -- arsenate; Polycyclic aromatic compounds -- Periodicals; 547
• DOI: 10.1080/10406638.2020.1764986
• Languages: English
• ISSNs: 1040-6638

Abstract

Abstract: A new 1, 3-distal diphenyl(4-piperidin)methanol-appended calix[4]arene derivative 3 has been successfully synthesized and characterized using FTIR, NMR and elemental analysis techniques. Synthesized 1, 3-distal diphenyl(4-piperidin)methanol-appended calix[4]arene derivative 3 has been then grafted onto [3-(2, 3-epoxypropoxy)-propyl]-trimethoxysilane-modified Fe3 O4 magnetic nanoparticles to produce 1, 3-distal diphenyl(4-piperidin)methanol-substituted calix[4]arene derivative-grafted EPPTMS-MN (4 ). The structure and surface morphology of 1, 3-distal diphenyl(4-piperidin)methanol-substituted calix[4]arene derivative-grafted EPPTMS-MN have been determined by a combination of FTIR, transmission electron microscopy (TEM) and thermogravimetric analysis (TGA) techniques. Moreover, anion binding capabilities of 1, 3-distal diphenyl(4-piperidin)methanol-substituted calix[4]arene derivative-grafted EPPTMS-MN toward HCr2 O7 -, and H2 AsO4 - ions have been evaluated. The results indicate that 1, 3-distal diphenyl(4-piperidin)methanol-substituted calix[4]arene derivative-grafted EPPTMS-MN exhibited 80% sorption efficacy toward Cr(VI), whereas ∼8% sorption efficacy for As(V) was obtained.