Synthesis and Characterization of New Nanoporous CMK-1/SDS-Fe Sorbent for Determination and Elimination of PANH Organic ComPounds by SPE-UV Technique in Petroleum, Petrochemical and Gas inDustries

Document Type : Research Paper

Authors

1 Research Laboratory of Nanoporosus Materials, Faculty of Chemistry, Iran University of Science and Technology

2 Department of Chemistry, Scince and Research Branch, Islamic Azad University

Abstract

The current study investigated the adsorption characteristics of phenanthroline and 2,2’-bipyridine from aqueous solutions on the new modified nanosorbent by the solid phase extraction method and UV spectroscopic technique. The selection of the appropriate extraction system is an important stage in the elaboration of the analytical procedure; also, the knowledge of the relations/interactions between isolated compounds, sorbent, and elution solvents is very important in the selection of the extraction system. In this work, CMK-1 mesoporous carbon molecular sieves were synthesized using mesoporous MCM-48 silica with various pore diameters as template and then modified by sodium dodecyl sulfate surfactant (SDS) and Fe+3 ions. This CMK-1 typed ordered nanoporous carbon was investigated as a novel solid phase extraction sorbent for the first time. The structural order and textural properties of the modified synthesized material were studied by XRD analysis, nitrogen adsorption-desorption analysis, SEM photograph, and FTIR technique. These PANH compounds were selectively adsorbed in a column which was filled up with this modified sorbent. Subsequently, the adsorbed analytes were eluted with dimethyl sulfoxide (DMSO) and their concentrations were measured by UV-vis instrument. The results showed that the limits of detection (based on 3σ) for phenanthroline and 2,2’-bipyridine were 8.75 and 10.1 μg.l-1 respectively. Finally, the extraction and determination of phenanthroline and 2,2’-bipyridine from real aqueous samples were successfully investigated.
 

Keywords

References

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Journal of Petroleum Research
Volume 23, Issue 73 - Serial Number 73
July and August 2013
Pages 81-94

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