Synthesis, Characterization and Evaluation of Property Profile of Hybrid Ion- Exchanger

2013 ◽  
Vol 856 ◽  
pp. 64-68 ◽  
Author(s):  
Balbir Singh Kaith ◽  
Saruchi ◽  
Sandeep Kaur ◽  
Meenakshi Devi
Keyword(s):  
Ion Exchange ◽  
Chemical Properties ◽  
Reaction Medium ◽  
Monomer Concentration ◽  
Exchange Capacity ◽  
Ion Exchanger ◽  
Reaction Conditions ◽  
Ion Exchange Capacity ◽  
Physico Chemical ◽  
Different Temperatures

Gum tragancanthbased organic-inorganic hybrid ion exchanger has been synthesized using a mixture of sodium tungstate, orthophosphoric acid and potassium iodate. The different reaction conditions like reaction temperature, reaction time, pH of reaction medium, solvent volume, monomer concentration and initiator concentration were optimized in order to get the semi-IPN Gt-cl-poly (AA). Onto semi IPN, methylmethacrylate was incorporated using lipase-gluteraldehyde as the initiator-crosslinker system. The IPN finally was converted into ion-exchanger and was studied for its different physico-chemical properties. Ion exchange capacity was studied for Na+and effect of different temperatures on ion exchange capacity was evaluated. Characterization was done using Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and EDS techniques.

scholarly journals Radiation-induced Grafting of Styrene onto Polyethylene Films for Preparation of Cation Exchange Membranes: Effect of Crosslinking+

2017 ◽  
Vol 2 (1) ◽  
Author(s):  
M. M. Nasef ◽  
H. Saidi ◽  
A. H. Yahaya
Keyword(s):  
Cation Exchange ◽  
Chemical Properties ◽  
Exchange Capacity ◽  
Gravimetric Analysis ◽  
Scanning Calorimetry ◽  
Swelling Properties ◽  
Ion Exchange Capacity ◽  
Physico Chemical ◽  
Styrene Divinylbenzene ◽  
Radiation Induced

Crosslinked cation exchange membranes bearing sulfonic acid groups (PE-g-PSSA/DVB) were prepared by radiationinduced grafting of styrene/divinylbenzene (DVB) mixtures onto low density polyethylene (PE) films followed by sulfonation reactions. The effect of addition of DVB (2 and 4%) on the grafting behavior and the physico-chemical properties of the membranes such as ion exchange capacity, swelling and ionic conductivity were evaluated incorrelation with grafting yield (Y%). The structural and thermal properties of the membranes were also studied using differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA), respectively. Crosslinking with DVB was found to considerably affect the properties of the membranes in a way that reduces the swelling properties and enhances the chemical stability. The ion conductivity of the crosslinked membranes recorded a level of 10–2 S/cm at sufficient grafting yield (28%) despite the reduction caused by the formation of crosslinking structure. The results of this work suggest that membranes prepared in this study are potential alternatives for various electrochemical applications.

Preparation of Cation Exchanger Using Electrospun Polystyrene Nanofiber

2006 ◽  
Vol 10 (2) ◽  
pp. 196-200 ◽  
Author(s):  
Hyung-Hwan An ◽  
◽  
Changyun Shin ◽  
Keyword(s):  
Ion Exchange ◽  
Glass Fiber ◽  
Water Uptake ◽  
Cation Exchanger ◽  
Fiber Surface ◽  
High Water ◽  
Exchange Capacity ◽  
Experimental Results ◽  
Ion Exchanger ◽  
Ion Exchange Capacity

We studied a new ion exchanger for high ion exchange capacity (IEC) and rapid ion exchange. Polystyrene nanofiber ion exchangers (PSNIEs) were prepared by electrospinning from solutions of dissolved polystyrene followed by sulfonation. Coating and sulfonation were used to modify the glass fiber surface with polystyrene to produce cation exchanger fiber (CEF). We present new experimental results on the performance of PSNIE and CEF related to parameters of IEC, water uptake, and surface morpoholgy. IEC and water uptake of PSNIE depend on sulfonation time. IEC reached 3.74 mmol/g at relatively high water uptake of 0.6 to 0.77g H2O/g-dry-PNIE. IEC and water uptake of CEF reached 3.61mmol/g-CEF and 0.25g H2O/g-dry-CEF.

Study of the Inorganic Ion Exchanger Li3Mn0.25Ti0.5O3

2012 ◽  
Vol 178-181 ◽  
pp. 471-474
Author(s):  
Jin He Jiang
Keyword(s):  
Ion Exchange ◽  
Spinel Structure ◽  
Exchange Capacity ◽  
Ion Exchanger ◽  
Inverse Spinel ◽  
Ion Exchange Capacity ◽  
Inorganic Ion Exchanger ◽  
Inverse Spinel Structure ◽  
Inorganic Ion ◽  
Crystallization Method

Inorganic ion exchanger (Li3Mn0.25Ti0.5O3) with an inverse spinel structure was synthesized by solid state reaction crystallization method. The results showed that the Li+ extraction/insertion be progressed mainly by an ion-exchange mechanism. The acid treated samples had an ion exchange capacity of 9.2mmol/g for Li+.

scholarly journals Modified Phillipsite as a Novel Ion-Exchanger for Potassium Extraction from Seawater

2019 ◽  
Vol 25 (4) ◽  
pp. 441-445
Author(s):  
Chunxia MENG ◽  
Jin HOU
Keyword(s):  
Hydrothermal Synthesis ◽  
Ion Exchange ◽  
Average Particle Size ◽  
Selectivity Coefficient ◽  
Exchange Capacity ◽  
Ion Exchanger ◽  
Average Particle ◽  
Mixed Solution ◽  
Ion Exchange Capacity ◽  
X Ray

Template-free preparation of phillipsite as a novel K+ ion-exchanger was studied systematically by hydrothermal synthesis. The alkalinity, dosage of water glass, dosage of H2O, aging time, reaction temperature and time of hydrothermal synthesis were discussed in detail. The optimized material obtained about phillipsite through the synthesis and testing methods was performed. The K+ ion-exchange capacity and selectivity coefficient were tested. The molar composition for preparing high performance phillipsite obtained was 2K2O:18SiO2:Al2O3:510H2O by optimizing synthetic conditions. The K+ ion-exchange capacity of phillipsite was 57.3 mg/g in seawater. The K+ selectivity coefficient was 88.6 in an equimolar K+ and Na+ mixed solution. Phillipsite can selectively capture K+ over other ions, and therefore can be used for potassium extraction selectively from seawater. Phillipsite was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). The XRD pattern indicated that the synthetic zeolite was phillipsite. The phillipsite particles exhibited cross-like shape and the average particle size was about 2.5 μm. The synthetic phillipsite was mainly consisted of Si, Al, K and O elements.

Synthesis of Li+ Memorized Spinel Li3Mn0.75O3 by a Solid State Reaction Crystallization Method

2012 ◽  
Vol 178-181 ◽  
pp. 475-478
Author(s):  
Jin He Jiang
Keyword(s):  
Solid State ◽  
Ion Exchange ◽  
Solid State Reaction ◽  
Exchange Capacity ◽  
Ion Exchanger ◽  
Exchange Mechanism ◽  
Spinel Type ◽  
Ion Exchange Capacity ◽  
Crystallization Method

The ion-exchanger Li3Mn0.75O3 of spinel type was prepared by a solid state reaction crystallization method. The results showed that the Li+ extraction/insertion be progressed mainly by an ion-exchange mechanism. The acid treated samples had an ion exchange capacity of 8.3mmol/g for Li+.

scholarly journals New water treatment technology - homogeneous membrane electrodialysis

2019 ◽  
Vol 79 ◽  
pp. 03003
Author(s):  
Guorui Tang ◽  
Kuan He ◽  
Deqing Liu
Keyword(s):  
Water Treatment ◽  
Ion Exchange ◽  
Chemical Properties ◽  
Exchange Capacity ◽  
Treatment Technology ◽  
Ion Exchange Capacity ◽  
Treatment Processes ◽  
Effective Removal ◽  
Physical And Chemical ◽  
Exchange Membrane

This paper introduces the structure and technical principle of the homogeneous membrane electrodialyzer, and describes that the homogeneous ion exchange membrane has excellent ion exchange capacity, low water loss rate, stable physical and chemical properties and effective removal of organic matter. The homogeneous membrane electrodialysis technology should be combined with other water treatment processes in practice to achieve better treatment results.

scholarly journals A New Hybrid EDTA–Zirconium Phosphate Cation-Exchanger: Synthesis, Characterization and Adsorption Behaviour for Environmental Monitoring

2009 ◽  
Vol 27 (4) ◽  
pp. 423-434 ◽  
Author(s):  
S.A. Nabi ◽  
Mu. Naushad ◽  
Rani Bushra
Keyword(s):  
Ion Exchange ◽  
Zirconium Phosphate ◽  
Cation Exchanger ◽  
Exchange Capacity ◽  
Ion Exchanger ◽  
Ion Exchange Capacity ◽  
Inorganic Ion ◽  
Ft Ir ◽  
Distribution Studies ◽  
Binary Separations

EDTA–zirconium phosphate has been synthesized as a new amorphous hybrid cation-exchanger by the combination of the inorganic ion-exchanger zirconium phosphate and EDTA, thereby providing a new class of organic–inorganic hybrid ion-exchanger with better mechanical and granular properties, a good ion-exchange capacity (2.40 mequiv/g dry exchanger for Na+), good reproducibility, and a higher stability and selectivity towards heavy metal ions. It has been characterized using FT-IR, TGA/DTA, X-ray and SEM methods, in addition to ion-exchange studies such as the determination of its ion-exchange capacity, elution and distribution behaviour, to provide a better understanding of the ion-exchange behaviour of the material. On the basis of distribution studies, the material was found to be highly selective towards Th(IV) and its selectivity was examined by achieving some important binary separations such as Cd(II)–Th(IV), Ni(II)–Th(IV), Hg(II)–Th(IV), Zn(II)–Th(IV), Pb(II)–Th(IV) and Al(III)–Th(IV) by column means, indicating its utility in environmental pollution control in one way or other.

The Mechanism of the Sorption of Monovalent Cations on Cobalt(II)-hexacyanoferrate(II)

1978 ◽  
Vol 33 (10) ◽  
pp. 1099-1101 ◽  
Author(s):  
T. Ćeranić ◽  
D. Trifunović ◽  
R. Adamović
Keyword(s):  
Ion Exchange ◽  
Chemical Properties ◽  
Solution Phase ◽  
Ion Exchanger ◽  
Monovalent Cations ◽  
Dilute Solutions ◽  
Physico Chemical ◽  
The Given ◽  
Exchange Properties ◽  
Competing Ions

Abstract Cobalt(II)-M-hexacyanoferrate(II), M = K, NH4, Cs, as synthetic sorbents have ion exchange properties selective for monovalent cations. They show a higher selectivity for the ions with larger crystal radius if the sorption takes place in dilute solutions, whereas in concentrated sulutions the selectivity sequence is reversed. The phenomenon is attributed to the differences in physico-chemical properties of the given pair of competing ions in the solution phase and to steric limitations in the phase of ion exchanger.

The Synthesis and Ion-Exchange Property of Li+ Memorized Spinel Li2Mn0.75Ti0.25O3

2012 ◽  
Vol 554-556 ◽  
pp. 856-859
Author(s):  
Jin He Jiang
Keyword(s):  
Solid State ◽  
Ion Exchange ◽  
Solid State Reaction ◽  
Exchange Capacity ◽  
Ion Exchanger ◽  
Exchange Property ◽  
Ion Exchange Capacity ◽  
Inorganic Ion Exchanger ◽  
Inorganic Ion ◽  
Crystallization Method

Inorganic ion exchanger Li2Mn0.75Ti0.25O3 is synthesized. It was prepared by a solid state reaction crystallization method. The results showed that the Li+ extraction/insertion be progressed mainly by an ion-exchange mechanism. The acid treated samples had an ion exchange capacity of 7.4 mmol•g-1 for Li+. It had a memorial ion-sieve property for Li+.

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