High-capacity strong cation exchanger prepared from an inactivated immobilized enzyme and its application to the removal of methylene blue from water

RSC Advances ◽  
2016 ◽  
Vol 6 (66) ◽  
pp. 61013-61020 ◽  
Author(s):  
Jingxiang Yuan ◽  
Chaozhan Wang ◽  
Yinmao Wei
Keyword(s):  
Methylene Blue ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Cation Exchanger ◽  
Immobilized Enzyme ◽  
High Capacity ◽  
Immobilized Enzymes ◽  
Atom Transfer ◽  
Strong Cation Exchanger

Inactivated immobilized enzymes were reutilized by converting into a strong cation exchanger by using surface-initiated atom transfer radical polymerization, and the cation exchanger was used to remove methylene blue from water.

Uptake of Fe(iii), Ag(i), Ni(ii) and Cu(ii) by salicylic acid-type chelating resin prepared via surface-initiated atom transfer radical polymerization

RSC Advances ◽  
2016 ◽  
Vol 6 (73) ◽  
pp. 69370-69380 ◽  
Author(s):  
Juncai Zhang ◽  
Youning Chen
Keyword(s):  
Salicylic Acid ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
High Capacity ◽  
Base Material ◽  
Chelating Resin ◽  
Atom Transfer ◽  
Acid Type ◽  
New Type

With chloromethylated PS being the base material, a new type of ASA/PGMA/PS resin with high capacity was prepared by grafting GMA on the surface of the resin via surface-initiated atom transfer radical polymerization and followed by the derivatization with 5-ASA.

Protein adsorption by a high-capacity cation-exchange membrane prepared via surface-initiated atom transfer radical polymerization

RSC Advances ◽  
2016 ◽  
Vol 6 (8) ◽  
pp. 6415-6422 ◽  
Author(s):  
Maofang He ◽  
Chaozhan Wang ◽  
Yinmao Wei
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Cation Exchange ◽  
Protein Adsorption ◽  
Radical Polymerization ◽  
Glycidyl Methacrylate ◽  
High Capacity ◽  
Cation Exchange Membrane ◽  
Atom Transfer ◽  
Weak Cation Exchange ◽  
Exchange Membrane

A weak cation-exchange membrane was prepared via surface-initiated atom transfer radical polymerization of glycidyl methacrylate and subsequent two-step derivation, and then two new parameters were used to explain the protein adsorption behavior.

scholarly journals Preparation of novel polyamine-type chelating resin with hyperbranched structures and its adsorption performance

2018 ◽  
Vol 5 (2) ◽  
pp. 171665 ◽  
Author(s):  
Youning Chen ◽  
Wei Zhao ◽  
Huan Wang ◽  
Yuhong Li ◽  
Chenxi Li
Keyword(s):  
Waste Water ◽  
Heavy Metal ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Hyperbranched Polymer ◽  
Metal Ion ◽  
High Capacity ◽  
Chelating Resin ◽  
Atom Transfer ◽  
Adsorption Effect

This paper explored the method of combining atom transfer radical polymerization (ATRP) technology and hyperbranched polymer principle to prepare the high capacity chelating resin. First, surface-initiated atom transfer radical polymerization (SI-ATRP) method was used to graft glycidyl methacrylate (GMA) on chloromethylated cross-linked styrene-divinylbenzene resin, and then the novel polyamine chelating resin with a kind of hyperbranched structure was prepared through the amination reaction between amino group of (2-aminoethyl) triamine and epoxy group in GMA. This resin had a selective effect on As(V) and Cr(VI) at a relatively low pH and can be used for the disposal of waste water containing As(V) and Cr(VI). It had a relatively strong adsorption effect on Cu(II), Pb(II), Cd(II) and Cr(III) and can be used for the disposal of heavy metal ion waste water. The finding was that, the adsorption capacity of resin on the studied heavy metal ions was higher than that of the chelating resin synthesized by traditional technology and also higher than that of the resin modified by ATRP technology and bifunctional chelator, indicating that the combination of ATRP and hyperbranched polymer concept is an effective method to prepare chelating resin with high capacity.

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