p-Aminobenzenesulfonic acid was selected as a typical solute withamphoteric functional groups to be separated from dilute solution. Aquaternary ammonium chloride, Aliquat 336, was used as theextractant. The effects of...p-Aminobenzenesulfonic acid was selected as a typical solute withamphoteric functional groups to be separated from dilute solution. Aquaternary ammonium chloride, Aliquat 336, was used as theextractant. The effects of pH, extractant concentration and diluenttypes on distribution coefficient, D, were investigated. Meanwhile,the ion exchange reaction for Aliquat 336 with p-aminobenzenesulfonicacid in the extraction process Was discussed. The description of Dwas proposed according to the mass action law.展开更多
Reported here is a water-soluble ligand, N-（sulfoethyl）-iminodiacetic acid （H3SEIDA）, used for the complexation of uranyl ions. A coordination compound composed of uranyl cation and N-（sulfonatoethyl）-ammoniodia...Reported here is a water-soluble ligand, N-（sulfoethyl）-iminodiacetic acid （H3SEIDA）, used for the complexation of uranyl ions. A coordination compound composed of uranyl cation and N-（sulfonatoethyl）-ammoniodiacetate （SEADA2-） zwitterion was synthesized from an acidic aqueous solution. This compound features a 2D undulating fes （4.82） coordination layer that is stacked and linked by hydrogen-bonding interaction to form a 3D supramolecular framework with a 1D larger-cycle channel. Thermal analysis demonstrates the relatively weak bonding between uranyl cation and SEADA2 zwitterion. The monomeric uranyl-based fluorescence emission is red-shifted by about thermal synthesis of this uranyl compound was successfully 5 nm compared to that of uranyl nitrate hexahydrate. The hydro- applied to the sequestration of uranyl ions.展开更多
基金Supported by the National Natural Science Foundation of China (No. 29836130).
文摘p-Aminobenzenesulfonic acid was selected as a typical solute withamphoteric functional groups to be separated from dilute solution. Aquaternary ammonium chloride, Aliquat 336, was used as theextractant. The effects of pH, extractant concentration and diluenttypes on distribution coefficient, D, were investigated. Meanwhile,the ion exchange reaction for Aliquat 336 with p-aminobenzenesulfonicacid in the extraction process Was discussed. The description of Dwas proposed according to the mass action law.
基金financially supported by the National Natural Science Foundation of China(91122007)the Specialized Research Fund for the Doctoral Program of Higher Education(20110211130002)
文摘Reported here is a water-soluble ligand, N-（sulfoethyl）-iminodiacetic acid （H3SEIDA）, used for the complexation of uranyl ions. A coordination compound composed of uranyl cation and N-（sulfonatoethyl）-ammoniodiacetate （SEADA2-） zwitterion was synthesized from an acidic aqueous solution. This compound features a 2D undulating fes （4.82） coordination layer that is stacked and linked by hydrogen-bonding interaction to form a 3D supramolecular framework with a 1D larger-cycle channel. Thermal analysis demonstrates the relatively weak bonding between uranyl cation and SEADA2 zwitterion. The monomeric uranyl-based fluorescence emission is red-shifted by about thermal synthesis of this uranyl compound was successfully 5 nm compared to that of uranyl nitrate hexahydrate. The hydro- applied to the sequestration of uranyl ions.
