Synthesis and Characterization of Novel Thermoplastic Films for Removal of Heavy Metal Ions

Abstract

The main objective of this study is to establish the applicability of novel thermoplastic films based on extracted gelatins from bovine (G b ) and bird (G c ) bones in addition to hide powder (HP), which blended with modified polyethylene (MPE) for the removal of heavy metal ions such as copper (II), chromium (VI), nickel (II) and zinc (II) from aqueous media. The chemical reaction between 2-oxoglutaric acid with furfural in presence of methyl amine, via Mannich reaction mechanism, resulted in chemical compound I. The chemical structure of product I was confirmed by different spectroscopic tools such as: nuclear magnetic resonance ( 13 C-and 1 H-NMR) and Fourier transform infrared spectroscopy (FT-IR). The synthesized chemical product I was used as compatibilizing agent for blending G b , G c and Hp with MPE to obtain thermoplastic films using a polymer melting technique. The efficiency of the prepared films for absorption of different heavy metal ions from aqueous solution was investigated. The results indicated that the compatibilized films (MPE/I/HP) illustrated a maximum removal of zinc metal ions ($100%) under conditions of initial metal concentration about 240 mg/l. While, at initial metal concentration of about 150 mg/l, they exhibited excellent efficiency for removal of mixed metal ions of about 97-100% relative to the uncompatibilized ones (MPE/HP) 0%. INTRODUCTIONPolymer-metal complexes are composed of polymeric ligand and metal ions. In solution, the polymer-metal complexes form micro heterogeneous regions occupied by polymer backbone where physicochemical properties differ from those of the bulk solution [1] . Many polysaccharides, such as cellulosic, carrageenan, lignin, chitin and alginate derivatives are known to bind heavy metal ions strongly [2][3][4][5][6][7][8] . The negative effects of heavy metals on the environment have necessitated the need to look for suitable technologies for their removal from different industrial effluents, before discharging, such as mining, battery,

Preparation and characterization of Metal Complex Hydrogels Crosslinked with Hyperbranched Polyester

“…Chitosan is a biodegradable renewable polymer obtained by deacetylation of chitin. It has an excellent metals binding capacity by its physical or chemical modifications [5][6][7][8][9][10][11][12]. On the other hand, it has some disadvantages such as: acidic solubilization which prevents its use as insoluble sorbent in this medium.…”

Design, Synthesis, Application and Recovery of Guar Gum 5-Amino Salicylic Acid Hydroximate [GASAH] Resin for Selective Separation and Determination of Trace and Heavy Metal Ions

“…Different methods such as precipitation [1] , solvent extraction [2,3] chemical and electrochemical technique [4] , advanced oxidation process [5] , ion-exchange method [6][7][8][9] , novel thermoplastic films [10] , ultrafiltration and reverse osmosis [11][12][13] have been developed for the removal of heavy metal ions from industrial effluents and wastewater.…”

“…In addition many of them are known to be heavy or carcinogenic even at low concentration, not biodegradable and tend to accumulated in living organism causing serious diseases and disorders. In view of this, there is the need of developing technologies that can not only cleanup but also recover valuable components from industrial effluent.Different methods such as precipitation [1] , solvent extraction [2,3] chemical and electrochemical technique [4] , advanced oxidation process [5] , ion-exchange method [6][7][8][9] , novel thermoplastic films [10] , ultrafiltration and reverse osmosis [11][12][13] have been developed for the removal of heavy metal ions from industrial effluents and wastewater.Ion-exchangers of polyvalent metals often exhibit much better ion-exchange behavior and are always of pinterest because of their higher selectivity, resistance to higher temperature, radiation field and to some extent chemical …”

Kinetic study of gelatin/chitosan based nanocomposites for acid red 150 dye adsorption using ultrasonic energy

“…This clarification concurs with our information on pH affect. As described previously, the pH of hydrous solution assumes a critical part in acid dye adsorption on adsorbents [16][17][18][19][20][21][22][23][24][25][26][27]. (Fig 1).…”