Abstract
In this work, magnetite nanoparticles functionalized with Moringa oleifera plant leaf extracts were synthesized and investigated as potential nanosorbents in the extraction of nitroaromatic explosive compounds from aqueous solution. The predicted maximum adsorption capacity towards the nitroaromatic explosive compounds was 282 μg g−1. Batch studies confirmed that the pseudo second order model explained the extent of the adsorption while the absorption mechanism followed the Langmuir model. The order of selectivity for the nitroaromatic explosive compounds studied was observed as follows: 2-nitrotoluene >3-nitrotoluene >4-nitrotoluene > nitrobenzene >2,6-dinitrotoluene >1,3-dinitrobenzene. The limits of detection ranged from 0.4 to 4.5 mg L−1. Even though the recovery values for the target analytes are relatively low (14–46%), the method has shown great potential and repeatability with an average RSD value of 2.33%. The Moringa oleifera functionalized magnetite nanoparticles are therefore a viable nanosorbent that can be used as a sorbent to effectively extract nitroaromatic explosive compounds from polluted water.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
