Abstract
Herein, amino-functionalized mesostructured cellular foam (AF-MCF) was used as an efficient mesoporous dispersive solid-phase sorbent for the extraction of atrazine from aqueous solutions. The sorbent was characterized using fourier transform infrared spectrophotometer, filed emission scanning electron microscopy, energy eispersive X-ray Spectrometer, transmission electron microscopy, X-ray diffraction, and nitrogen adsorption-desorption isotherm. The effects of several factors such as pH, ionic strength, type and volume of the elution solvent, contact time on the extraction efficiency of atrazine and reusability of the sorbent were studied in detail. Under the optimized conditions, the calibration curve was linear over the range of 2–200 μg L−1 and the limit of detection was determined to be 0.5 μg L−1 for atrazine. Additionally, the adsorption capacity was found to be 270.27 mg g−1. It was also demonstrated that the amino-functionalized mesostructured cellular foam sorbent could be used at least over 6 cycles of the adsorption-desorption process. Finally, the accuracy and precision of the extraction method were evaluated through measurement of atrazine in various real water samples, which reaffirmed the high efficiency of the applied method.
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