Plasma polymerization mediated construction of surface ion-imprinted polypropylene fibers for the selective adsorption of Cr(VI)

2020 ◽  
Vol 150 ◽  
pp. 104552 ◽  
Author(s):  
Zhengwei Luo ◽  
Mulin Guo ◽  
Hui Jiang ◽  
Wenhua Geng ◽  
Wuji Wei ◽  
...  
Keyword(s):  
Plasma Polymerization ◽  
Selective Adsorption ◽  
Polypropylene Fibers ◽  
Ion Imprinted

scholarly journals Ion-Imprinted Polypropylene Fibers Fabricated by the Plasma-Mediated Grafting Strategy for Efficient and Selective Adsorption of Cr(VI)

Polymers ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1508 ◽  
Author(s):  
Zhengwei Luo ◽  
Jiahuan Xu ◽  
Dongmei Zhu ◽  
Dan Wang ◽  
Jianjian Xu ◽  
...  
Keyword(s):  
Time Pressure ◽  
Discharge Plasma ◽  
Selective Adsorption ◽  
Polypropylene Fibers ◽  
Adsorption Selectivity ◽  
Plasma Irradiation ◽  
Ion Imprinted ◽  
The Stability ◽  
Kinetics Of

To improve the adsorption selectivity towards hexavalent chromium anion (Cr(VI)), surface Cr(VI)-imprinted polypropylene (PP) fibers were fabricated by the plasma-mediated grafting strategy. Hence, a non-thermal Rradio frequency discharge plasma irradiation followed by a gaseous phase grafting was used to load acrylic acid (AA) onto PP fibers, which was afterwards amidated with triethylenetetramine and subjected to imprinting with a Cr(VI) template. The plasma irradiation conditions, i.e., gas species, output power, pressure, and time, were optimized and then the influence of grafting time, pressure, and temperature on the grafting degree of AA was investigated. Scanning electron microscopy and Fourier transform infrared spectroscopy were used for the characterization of pristine and modified fibers and to confirm the synthesis success. The hydrophilicity of modified fibers was greatly improved compared with pristine PP fibers. The adsorption thermodynamics and kinetics of Cr(VI) were investigated, as well as the elution efficiency and reusability. The prepared imprinted fibers showed superior adsorption selectivity to Cr(VI) compared with non-imprinted fibers. Finally, the stability of the imprinted fibers against the oxidation ability of Cr(VI) is discussed.

Arsenic selective adsorption using a nanomagnetic ion imprinted polymer: Optimization, equilibrium, and regeneration studies

2020 ◽  
Vol 317 ◽  
pp. 114246 ◽  
Author(s):  
Mohsen Sadani ◽  
Tayebeh Rasolevandi ◽  
Hossein Azarpira ◽  
Amir Hossein Mahvi ◽  
Mansour Ghaderpoori ◽  
...  
Keyword(s):  
Selective Adsorption ◽  
Ion Imprinted Polymer ◽  
Imprinted Polymer ◽  
Ion Imprinted

An ion imprinted macroporous chitosan membrane for efficiently selective adsorption of dysprosium

2017 ◽  
Vol 189 ◽  
pp. 288-295 ◽  
Author(s):  
Enli Liu ◽  
Xuechao Xu ◽  
Xudong Zheng ◽  
Fusheng Zhang ◽  
Enxiu Liu ◽  
...  
Keyword(s):  
Selective Adsorption ◽  
Chitosan Membrane ◽  
Ion Imprinted

Preparation and Recognition Performance of Molecularly Imprinted Polymers for Cadmium with Surface-Imprinting Technique

2013 ◽  
Vol 807-809 ◽  
pp. 461-465 ◽  
Author(s):  
Dao Bo Zhou ◽  
En Qi Liu ◽  
Shang Long Chen ◽  
Shi Rong Tang
Keyword(s):  
Adsorption Capacity ◽  
Selective Adsorption ◽  
Recognition Performance ◽  
Kinetic Curve ◽  
Maximum Adsorption Capacity ◽  
Surface Imprinting Technique ◽  
Molecular Imprinting Technology ◽  
Ion Imprinted ◽  
Kinetics Of ◽  
Silica Gel Particles

A new Cd (II) ion-imprinted polymer (Cd (II)-IIP), which can be used for selective adsorption of Cd (II) from aqueous solutions, was successfully prepared based on silica gel particles with the help of surface molecular imprinting technology. The adsorption kinetic curve, adsorption isotherm and selective adsorption were measured by static method. The adsorption kinetics of IIPs for Cd (II) reached the equilibrium at about 10 min. The maximum adsorption capacity was 29.36 mg/g, and the IIPs had much higher adsorption quantity than NIPs. Competitive adsorption studies showed that Cd (II)-IIP offers the advantages of selectivity toward targeted Cd (II) compared with NIP in the presence other metal ions. The results showed that the IIPs possessed good specific adsorption capacity and selectivity for Cd (II).

Preparation and adsorption characteristics of an imprinted polymer for selective removal of Cr(vi) ions from aqueous solutions

2014 ◽  
Vol 2 (42) ◽  
pp. 17952-17961 ◽  
Author(s):  
Zhongqi Ren ◽  
Delong Kong ◽  
Keyuan Wang ◽  
Weidong Zhang
Keyword(s):  
Aqueous Solutions ◽  
Selective Adsorption ◽  
Bulk Polymerization ◽  
Functional Monomer ◽  
Ion Imprinted Polymer ◽  
Imprinted Polymer ◽  
High Adsorption ◽  
Ion Imprinted ◽  
Vinyl Pyridine ◽  
High Adsorption Capacity

To achieve a fast adsorption rate and a high adsorption capacity in the selective adsorption of Cr(vi) from wastewater, a novel Cr(vi) ion imprinted polymer (Cr(vi)-IIP) was synthesized by bulk polymerization with 4-vinyl pyridine (4-VP) as a functional monomer.

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