Enhanced adsorption of heavy metal ions onto simultaneous interpenetrating polymer network hydrogels synthesized by UV irradiation

2013 ◽  
Vol 70 (4) ◽  
pp. 1415-1430 ◽  
Author(s):  
Jing Jing Wang ◽  
Fang Liu
2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Xinfeng Zhang ◽  
Shujing Yang ◽  
Bing Yu ◽  
Qinglong Tan ◽  
Xiaoyan Zhang ◽  
...  

2017 ◽  
Vol 8 (33) ◽  
pp. 4771-4775 ◽  
Author(s):  
Weicong Mai ◽  
Yuan Zuo ◽  
Chuanfa Li ◽  
Jinlun Wu ◽  
Kunyi Leng ◽  
...  

Functional nanonetwork-structured polymers with inbuilt poly(acrylic acid) linings for enhanced adsorption toward basic dyes and heavy metal ions were fabricated based on the union of SI-ATRP and hypercrosslinking.


2020 ◽  
Vol 24 (6) ◽  
pp. 4-9
Author(s):  
М.V. Obuzdina ◽  
E.A. Rush

The article presents the results of researches of zeolite modification in order to create sorbents for wastewater treatment from heavy metal ions. Zeolitive tuffs of deposit of the Zabaikalye Territory are considered as raw materials. It is proposed to modify zeolites with highly organosilicon compounds hexamethyldisilazane [(CH3)3Si]2NH and tetraethoxysilane (С2H5O)4Si, which leads to hydrophobization of the surface and an increase in adsorption capacity. A method for modifying the structure of natural zeolite with a sulfur-containing polymer obtained from waste products of epichlorohydrin, the main component of which is 1,2,3-trichloropropane, is described in more detail. A sulfur-containing polymer network is formed by using sulfur dissolution at room temperature in the monoethanolamine – hydrazine hydrate system and condensation with 1,2,3-trichloropropane. The result of applying a sulfur-containing polymer network is not only hydrophobization of the zeolite surface, but also the appearance of sulfur atoms in its composition, which increases the selectivity to heavy metal ions. Based on the obtained experimental data, the method of improvement the existing technologies for wastewater treatment at enterprises (railway transport) by introducing a deep post-treatment into the sorption unit scheme is proposed.


RSC Advances ◽  
2017 ◽  
Vol 7 (22) ◽  
pp. 13112-13122 ◽  
Author(s):  
Xin Wang ◽  
Shiyao Jing ◽  
Yingying Liu ◽  
Xiumin Qiu ◽  
Yebang Tan

A core-brush nanocomposite for rapid and enhanced adsorption of heavy metal ions was explored by combining SI-ATRP and DTC functionalization.


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