Analytical Methods in Environmental Chemistry Journal · 2019 · 17 citations · 23 references
Natural SciencesChemical EngineeringChemistryAnalytical ChemistryWastewater TreatmentWater TreatmentEnvironmental Analytical ChemistryExtraction TechniquesSolvent ExtractionWater ChemistryWater PollutionWater Treatment ChemistryEnergy Dispersive X-ray SpectroscopyEnergy-dispersive X-ray SpectroscopyEnvironmental Water ChemistryFlame Ionization DetectionIonic Liquid ExtractionPh-dependent ExtractionWater RemovalX-ray Diffraction Analysis
In this research, bismuth oxide (Bi2O3) nanostructures were prepared via chemical method at 90 °C for 3 h. the results samples were characterized by Fourier transform infrared (FTIR) for determination of functional groups, X-ray diffraction (XRD) for evaluation of crystal structure, dynamic light scattering (DLS), scanning electron microscope (SEM) for presentation of morphology and size, energy-dispersive X-ray spectroscopy (EDS) for determination of chemical composition, and diffuse reflection spectroscopy (DRS) for ultraviolet (UV) blocking. Also, the Bi2O3 nanostructures were used for benzene extraction from waters in pH=5-7. By procedure, 30 mg of Bi2O3 mixed with hydrophobic ionic liquid ([HMIM][PF6]) and injected to water samples. After shaking and centrifuging, benzene removed from water by ionic liquid-micro solid phase extraction (IL-μSPE) and determined by gas chromatography with flame ionization detector (GC-FID). The absorption capacity and recovery was obtained 167.8 mg per gram of Bi2O3 and more than 96%, respectively.
23