کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7843141 | 1506519 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Adsorption of U(VI) on magnetic iron oxide/Paecilomyces catenlannulatus composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
Development of engineering materials is critical to the improvement of adsorption performance. In this study, the new adsorbent of magnetic iron oxide/biochar (MIO/B) composites was synthesized by one-pot pyrolysis of FeCl2-preloaded Paecilomyces catenlannulatus under N2 conditions. The as-prepared composites were characterized by TEM, XPS, XRD and FT-IR techniques. The characteristic results showed that MIO/B composites presented a variety of nitrogen- and oxygen-containing functional groups. The effect of water chemistry on U(VI) adsorption towards MIO/B composites was investigated by batch techniques. The batch adsorption showed that U(VI) adsorption on MIO/B composites was independent of ionic strength at pH from 2.0 to 11.0, approximate 90% of U(VI) was removed by MIO/B composites at reaction time of 12Â h. The maximum adsorption capacity of U(VI) on MIO/B composites calculated from Langmuir mode at pHÂ 4.0 and 293Â K was 74.63Â mg/g. These findings are crucial for the practical application of biochar-based composites for the high effective enrichment of radionuclides from aqueous solutions in environmental remediation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 252, February 2018, Pages 52-57
Journal: Journal of Molecular Liquids - Volume 252, February 2018, Pages 52-57
نویسندگان
Fengbo Li, Xiaoyu Li, Pu Cui,