Influence of the matrix on the complexation of metal ions by chelating ion exchangers

1989 ◽  
Vol 335 (7) ◽  
pp. 738-742 ◽  
Author(s):  
H. -J. Fischer ◽  
K. H. Lieser
Keyword(s):  
Metal Ions ◽  
Ion Exchangers ◽  
The Matrix

Simultaneous Electrochemical Detection of Multiple Heavy-Metal Ions Based on Furfural/Reduced Graphene Oxide Composites

2021 ◽  
Author(s):  
Xiaoyun Xu ◽  
Xiaoyi Lv ◽  
Fei Tan ◽  
Yanping Li ◽  
Chao Geng ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Graphene Oxide ◽  
Metal Ions ◽  
Reduced Graphene Oxide ◽  
Heavy Metal Ions ◽  
Simultaneous Detection ◽  
Reduced Graphene ◽  
The Matrix ◽  
One Step ◽  
Oxide Composites

Abstract An efficient and sensitive electrochemical sensor for simultaneous detection of heavy metal ions was developed based on furfural/reduced graphene oxide composites (FF/RGO). The preparation of FF/RGO were performed through a one-step high-pressure assisted hydrothermal treatment, which is recommended as a green, convenient, and efficient way for the reduction of graphene oxide and the production of FF/RGO composites. RGO not only serves as the skeleton for furfural loading but also improves the conductivity of the composites in the matrix. FF/RGO with large specific surface area and abundant oxygen-containing functional groups was used to provide more binding sites for the effificient adsorption of heavy-metal ions due to the interaction between hydrophilic groups (-COOH, -OH, and -CHO) and metal cations. The developed sensor showed identifiable electrochemical response toward the heavy metal ions separately and simultaneously, exhibiting superior stability, outstanding sensitivity, selectivity and excellent analytical performance. Impressively, the sensor developed in this experiment has been successfully applied to the simultaneous determination of various heavy metal ions in actual samples, which has definitely exhibited a promising prospect in practical application.

Novel multifunctional ion exchangers for metal ions removal in the presence of citric acid

Chemosphere ◽  
2020 ◽  
Vol 251 ◽  
pp. 126331 ◽  
Author(s):  
Katarzyna Araucz ◽  
Andreas Aurich ◽  
Dorota Kołodyńska
Keyword(s):  
Citric Acid ◽  
Metal Ions ◽  
Ion Exchangers ◽  
Metal Ions Removal

Revisiting syntheses of Ti(iv)/H2PO4–HPO4 functional ion-exchangers, properties and features

2018 ◽  
Vol 42 (2) ◽  
pp. 838-845 ◽  
Author(s):  
Mylène Trublet ◽  
Daniela Rusanova ◽  
Oleg N. Antzutkin
Keyword(s):  
Metal Ions ◽  
Divalent Metal ◽  
Ion Exchanger ◽  
Divalent Metal Ions ◽  
Ion Exchangers ◽  
Strong Affinity

Systematic and readily obtainable ion-exchanger, TiO(OH)(H2PO4)·H2O, with excellent Na+ uptake and strong affinity towards divalent metal ions.

Sorption of Some Metal Ions on Inorganic Electron and Ion Exchangers Based on Zirconium(IV)

2005 ◽  
Vol 78 (8) ◽  
pp. 1266-1269
Author(s):  
T. S. Bondarenko ◽  
E. S. Boichinova
Keyword(s):  
Metal Ions ◽  
Ion Exchangers
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