Production new chelating fibers of polyacrilonitrile for removing metal ions

Abstract

In this work, raw acrylic fibers (RAF) have been modified with ethanolamine to provide new chelating fibers and prepared polyacrylonitrile-monoethanolamine (PAN-MEA). PAN-MEA fiber was prepared by conversion nitrile groups into hydroxyle groups using ethanolamine solution with different concentration under refluxing at different temperatures and different times.The fiber structure has been investigated by different experimental techniques of characterization such as Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and the physical and mechanical properties has also been investigated in this study. The PAN-MEA was examined as chelating material in a series of batch adsorption experiments for removal Cu (II), Pb (II) and Ni (II) ions. The ion adsorption of PAN-MEA was determined with the atomic adsorption method. PAN-MEA show adsorption metal ions more than usual fiber because of the modification.

Citric acid-modified acrylic micro and nanofibers for removal of heavy metal ions from aqueous media

“…In our previous studies, chelating acrylic fibers were prepared by modification of HPAN with various amine compounds [13][14][15][16].…”

Modified Pet Fibres for Metal Ion and Dye Removal from Aqueous Media

“…Several studies have been done to produce chelating or ion exchange fibres from raw acrylic fibres [5][6][7][8][9] . We also used different methods to modify acrylic fibres to prepare metal ion chelating fibres in our previous studies [10][11][12][13][14][15] .…”

Fabrication of chelating diethylenetriaminated pan micro and nano fibers for heavy metal removal

“…Chemical precipitation, adsorption into activated carbon, mineral oxides, resins and biosorbents, ion exchange, chelating fiber, electro dialysis, reverse osmosis membrane filtration, solvent extraction and common adsorption are the main approaches [1][2]. Several methods for reducing the metallic content of effluents have been described.…”

“…In this regard, different compounds, including ethylenediamine [3], diethylenetriamine [17][18], hydroxylamine hydrochloride [8], tetramethylene diamine [10] and ethanolamine [1] have been used. In this regard, different compounds, including ethylenediamine [3], diethylenetriamine [17][18], hydroxylamine hydrochloride [8], tetramethylene diamine [10] and ethanolamine [1] have been used.…”