Novel imine-linked porphyrin covalent organic frameworks with good adsorption removing properties of RhB†
Abstract
A new imine-linked porphyrin covalent organic framework (COF) CuP-DMNDA-COF with a large surface area was constructed from the condensation between 5,10,15,20-tetra(p-amino-phenyl)porphyrinatocopper(II) (CuTAPP) and 2,6-dimethoxynaphthalene-1,5-dicarbaldehyde (DMNDA) under solvothermal conditions. Simple treatment of CuP-DMNDA-COF with iron(III) in acetone led to the formation of the Fe-coordinated COF material CuP-DMNDA-COF/Fe, which exhibits superior adsorption performance for Rhodamine B (RhB) with easy recyclability and sustainability, indicating its good application potential for wastewater treatment.