مقال مجلة
Analysis of mercury ions in effluents using potentiometric sensor based on nanocomposite cation exchanger Polyaniline–zirconium titanium phosphate
[2011]
Khan, Asif Ali;
Paquiza, Leena;
Analysis of mercury ions in effluents using potentiometric sensor based on nanocomposite cation exchanger Polyaniline–zirconium titanium phosphate
2011
Khan, Asif Ali; Paquiza, Leena
http://dx.doi.org/10.1016/j.desal.2011.01.039
The objective of the present research was to synthesize, characterize and to investigate the efficiency of an advanced class of hybrid nano-composite cation exchanger for the detection of mercury(II) ion in aqueous solution. In the present study the cation exchanger ployaniline–zirconium titanium phosphate (PANI–ZTP) nanocomposite, was synthesized via sol–gel mixing of organic polymer polyaniline (PANI) into the matrices of the inorganic precipitate of zirconium titanium phosphate (ZTP), having extraordinary ion exchange capacity, thus used as electroactive component for the construction of an ion-selective membrane electrode. The proposed electrode shows fairly good discrimination of mercury ion over several other inorganic ions. The membrane electrode was mechanically stable, having wide dynamic range of 10⁻¹⁰mol/m³ to 10⁻¹mol/m³ of Hg²⁺ ions, with quick response time and could be operated for at least 4months without any considerable divergence in the potential response characteristics. The electrode was successfully applied for direct determination of mercury ions in some real sample with satisfactory results and acts as indicator electrode in complexation titrations.
[Desalination]
2015/US/US2015_1.rdf
The objective of the present research was to synthesize, characterize and to investigate the efficiency of an advanced class of hybrid nano-composite cation exchanger for the detection of mercury(II) ion in aqueous solution. In the present study the cation exchanger ployaniline–zirconium titanium phosphate (PANI–ZTP) nanocomposite, was synthesized via sol–gel mixing of organic polymer polyaniline (PANI) into the matrices of the inorganic precipitate of zirconium titanium phosphate (ZTP), having extraordinary ion exchange capacity, thus used as electroactive component for the construction of an ion-selective membrane electrode. The proposed electrode shows fairly good discrimination of mercury ion over several other inorganic ions. The membrane electrode was mechanically stable, having wide dynamic range of 10⁻¹⁰mol/m³ to 10⁻¹mol/m³ of Hg²⁺ ions, with quick response time and could be operated for at least 4months without any considerable divergence in the potential response characteristics. The electrode was successfully applied for direct determination of mercury ions in some real sample with satisfactory results and acts as indicator electrode in complexation titrations.
