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Preconcentration Of Trace Amount Cu(Ii) By Solid-Phase Extraction Method Usingactivated Carbon-Based Ion-Imprinted Sorbent, Kübra Turan, Ruki̇ye Saygili Canlidi̇nç, Orhan Murat Kalfa
Preconcentration Of Trace Amount Cu(Ii) By Solid-Phase Extraction Method Usingactivated Carbon-Based Ion-Imprinted Sorbent, Kübra Turan, Ruki̇ye Saygili Canlidi̇nç, Orhan Murat Kalfa
Turkish Journal of Chemistry
In this study, preconcentration conditions of trace amounts of copper ions were investigated with solid-phase extraction (SPE) method by synthesizing activated carbon-based ion-imprinted sorbent (Cu(II)-IAC) with a novel and selective approach. Flame atomic absorption spectrometry (FAAS) was used for the determination of metal ions concentrations. For the characterization of the sorbents, scanning electron microscopy, energy dispersive X-ray (SEM/EDX) analysis, and Fourier transform infrared spectroscopy (FTIR) were used. Optimum conditions for the SPE procedure, various parameters such as pH value, eluent type and concentration, sample volume, sample flow rate, adsorption capacity, and selectivity were studied. The adsorption isotherm was analyzed by …
Co2 Absorption Into Primary And Secondary Amine Aqueous Solutions With And Without Copper Ions In A Bubble Column, Hamed Yousefzadeh, Cansu Güler, Can Erkey, Erdal Uzunlar
Co2 Absorption Into Primary And Secondary Amine Aqueous Solutions With And Without Copper Ions In A Bubble Column, Hamed Yousefzadeh, Cansu Güler, Can Erkey, Erdal Uzunlar
Turkish Journal of Chemistry
Chemical absorption of CO2 into aqueous amine solutions using a nonstirred bubble column was experimentally investigated. The performance of CO2 absorption of four different primary and secondary amines including monoethanolamine (MEA), piperazine (PZ), 2-piperidineethanol (2PE), and homopiperazine (HPZ) were compared. The effects of initial concentration of amine, the inlet mole fraction of CO2, and solution temperature on the rate of CO2 absorption and CO2 loading (mol CO2/mol amine) were studied in the range of 0.02-1 M, 0.10-0.15, and 25-40 °C, respectively. The effect of the presence of copper ions in the amine solution on CO2 loading was also studied. By …