scholarly journals Removal of selected phthalates from aqueous solution by mesoporous-ordered carbon adsorbent

2017 ◽  
Vol 35 (7-8) ◽  
pp. 744-750 ◽  
Author(s):  
Katarzyna Jedynak ◽  
Dariusz Wideł ◽  
Jerzy Oszczudłowski

In the present work adsorption of selected phthalates from the water samples on mesoporous carbon material was investigated. Carbon material was obtained by soft-templating method in the presence of citric acid. Adsorption process of phthalates was carried out from water solution using static method with sonication for process acceleration. Phthalates extraction from water phase, after adsorption on carbon material, was carried out using solid phase microextraction method. Extracted samples were analyzed using gas chromatography coupled with mass spectrometry method. Considering obtained experimental results it can be indicated that almost 100% of phthalates were adsorbed from water solutions. The efficiency of adsorption decreases with increasing molecular weight of phthalates.

2017 ◽  
Vol 35 (7-8) ◽  
pp. 721-727 ◽  
Author(s):  
Andrzej Gierak ◽  
Iwona Łazarska

This work presents the results of the investigations of the adsorption process of nitrate, nitrite, and ammonium ions on carbon adsorbent with the application of the solid phase extraction method to isolate and enrich the investigated ions from aqueous solutions of the concentration below 1 mg/L. For the determination of the concentration of the analyzed ions, we applied the ion chromatography method. The sorption capacity for the tested adsorbents as well as the efficiency of the enrichment of the investigated ions were determined.


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