A novel modified fenton-like process for efficient remediation of anthracene-contaminated soils before analysis by ultraviolet–visible spectroscopy
سال انتشار: 1400
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 54
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شناسه ملی سند علمی:
JR_AMECJ-4-3_003
تاریخ نمایه سازی: 14 آذر 1402
چکیده مقاله:
Due to the persistence of polycyclic aromatic hydrocarbons (PAHs)
in soil and sediments, and their toxic, mutagenic, and carcinogenic
effects, the remediation of PAH-contaminated sites is an important
role for environment pollution. In this study, the chemical oxidative
remediation of anthracene-contaminated soils was investigated by
magnetite nanoparticles (Fe۳O۴) catalyzed Fenton-like oxidation in
the presence of hydrogen peroxide ۳۰% (H۲O۲) and urea-hydrogen
peroxide (UHP) at neutral pH. Urea-hydrogen peroxide (UHP), as a
safer oxidizing agent, is used for the first time in the Fenton process.
The magnetite nanoparticles improved the production of hydroxyl
radicals, and the removal of polycyclic aromatic hydrocarbons
(anthracene as a model compound) from the soil samples. The
structure of Fe۳O۴ nanoparticles was characterized by Fouriertransform
infrared spectroscopy (FT-IR), X-ray powder diffraction
(XRD), scanning electron microscopy (SEM), and vibrating sample
magnetometer (VSM). The removal efficiency of anthracene at an
initial concentration ۲۵۰۰ (mg kg-۱) was ۹۵% for ۲.۵ mmol by using
hydrogen peroxide and ۹۳% for ۰.۱ mmol of UHP at the optimum
oxidation condition. The anthracene reaction was analyzed by
ultraviolet-visible spectroscopy (UV-Vis). The UHP safety and
efficiency, neutral pH condition, the limited iron leaching and its easy
magnetic separation makes magnetite nanoparticles-UHP a promising
catalytic system in remediation of polycyclic aromatic hydrocarbons
in contaminated soils.
کلیدواژه ها:
Polycyclic aromatic hydrocarbon (PAH) ، Remediation ، Modified Fenton’s reaction ، Magnetite nanoparticle ، Urea-hydrogen peroxide (UHP)
نویسندگان
Mahdia Hamidinasab
Department of Chemistry, Faculty of Science, Arak University, Arak ۸۸۱۳۸-۳۸۱۵۶, Iran- Institute of Nanosciences and Nanotechnology, Arak University, Arak ۸۸۱۳۸-۳۸۱۵۶, Iran
Mohammad Ali Bodaghifard
Department of Chemistry, Faculty of Science, Arak University, Arak ۸۸۱۳۸-۳۸۱۵۶, Iran- Institute of Nanosciences and Nanotechnology, Arak University, Arak ۸۸۱۳۸-۳۸۱۵۶, Iran
Sepideh Ahmadi
Institute of Nanosciences and Nanotechnology, Arak University, Arak ۸۸۱۳۸-۳۸۱۵۶, Iran
Ali Seif
Department of Chemistry, Faculty of Science, Arak University, Arak ۸۸۱۳۸-۳۸۱۵۶, Iran