Synthesis of bismuth oxide: Removal of benzene from waters by bismuth oxide nanostructures
سال انتشار: 1398
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 57
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شناسه ملی سند علمی:
JR_AMECJ-2-4_007
تاریخ نمایه سازی: 14 آذر 1402
چکیده مقاله:
In this research, the bismuth oxide (Bi۲O۳) nanostructures were prepared via
chemical method at ۹۰ °C for ۳ 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 Bi۲O۳ nanostructures were used for benzene
extraction from waters in pH=۵-۷. By procedure, ۳۰ mg of Bi۲O۳ mixed with
hydrophobic ionic liquid ([HMIM][PF۶]) 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 ۱۶۷.۸ mg per gram of Bi۲O۳ and more than ۹۶%, respectively. Based on
the results, the bismuth oxide nanostructures were observed with rod morphology
and the diameter of nanometer. The antibacterial activities of the samples were
determined against Salmonella using inhibition zone diameter. Based on the
study, bismuth oxide nanostructures have good potential for removal of benzene
from waters. By IL-μSPE method, the results validated by spiking of samples
کلیدواژه ها:
Bismuth oxide nanostructures ، Synthesis ، Benzene removal ، Waters ، Liquid-micro solid phase extraction
نویسندگان
Negar Motakef Kazemi
Department of Medical Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
Masoumeh Yaqoubi
Department of Nanochemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran