Amidoxime-grafted multiwalled carbon nanotubes by plasma techniques for efficient removal of uranium(VI)
Amidoxime-grafted multiwalled carbon nanotubes by plasma techniques for efficient removal of uranium(VI)
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通过等离子体技术接枝偕胺肟多壁碳纳米管有效去除铀(VI)
DOI:
10.1016/j.apsusc.2014.08.182
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发表时间:
2014-11
影响因子:
6.7
通讯作者:
Jun Tang
中科院分区:
文献类型:
--
作者:
Jiali Liao;Yuanyou Yang;Ning Liu;Jun Tang
A novel solid-phase extractant, amidoxime-grafted multiwalled carbon nanotubes (AO-g-MWCNTs), has been synthesized using plasma techniques to selectively separate uranium from nuclear industrial effluents. The adsorbent was characterized by Fourier transform infrared spectra (FT-IR), elemental analysis, Raman, scanning electron microscopy (SEM), and thermal gravity analysis (TGA). Sorption behaviors of uranium(VI) on AO-g-MWCNTs were investigated by varying pH, contact time, initial uranium concentration, and temperature. An optimum sorption capacity of 145 mg g−1(0.61 mmol g−1) for U(VI) was obtained at pH 4.5. X-ray photoelectron spectroscopy (XPS) has been used to explore the sorption mechanism of U(VI) on AO-g-MWCNTs. Furthermore, AO-g-MWCNTs could selectively adsorb U(VI) in aqueous solution containing co-existing ions (Mn2+, Co2+, Ni2+, Zn2+, Sr2+, Ba2+and Cs+). This study shows that AO-g-MWCNTs are potential adsorbent for effective removal of U(VI) from aqueous solution.
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影响因子:
13.6
作者:
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通讯作者:
Basar, Canan Akmil
影响因子:
8.9
作者:
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通讯作者:
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影响因子:
3.5
作者:
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DOI:
10.1016/j.colsurfa.2004.10.004
发表时间:
2005-01
期刊:
Colloids and Surfaces A: Physicochemical and Engineering Aspects
影响因子:
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作者:
E. Oguz
通讯作者:
E. Oguz
影响因子:
15.1
作者:
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通讯作者:
Yingguo Zhao;Jiaxing Li;Lanping Zhao;Shouwei Zhang;Yongshun Huang;Xinlin Wu;Xiangke Wang