期刊
CHEMICAL ENGINEERING JOURNAL
卷 334, 期 -, 页码 400-409出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2017.10.065
关键词
Magnetic ceramsite; Nano carbon spheres; Removal; Hexavalent chromium; Magnetic separation
资金
- National Natural Science Foundation of China [21407151]
- Youth Innovation Promotion Association of Chinese Academy of Sciences [2015385]
- Key Program of Chinese Academy of Sciences [KSZD-EW-Z-022-05]
- Science and Technology Service Programs of Chinese Academy of Sciences [KFJ-STS-ZDTP-002, KFJ-SW-STS-143]
- Grant of the President Foundation of Hefei Institutes of Physical Science of Chinese Academy of Sciences [YZJJ201502]
A magnetic ceramsite (MC) coated by nano carbon spheres (MCCS) was fabricated, and then the MCCS was stabilized and functionalized by polyethylenimine (PEI) to obtain a nanocomposite named as MCCSP. The nano carbon spheres (NCS) possessed plenty of amino and oxygen-containing groups (eOH, eCOOH) and distributed homogeneously on the surface of MC, meanwhile the size and dispersion of these NCS could be conveniently adjusted. MCCSP demonstrated a high adsorption capacity for Cr(VI) which could be then reduced to low toxic trivalent chromium (Cr(III)), and the obtained Cr(III) could be chelated on the surface of MCCSP by protonated amine groups. Importantly, the resulting MCCSP-Cr could be conveniently collected from water and soil by a magnetic separation system (MSS). Therefore, this work provides a promising approach to remediate Cr(VI)contaminated water and soil and may have a high application value.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据