Novel Magnetic Nanocarbon and Its Adsorption of Hg and Pb from Water
2018
Guo, Kai | Larson, StevenL. | Ballard, JohnH. | Arslan, Zikri | Zhang, Rong | Ran, Yong | Su, Yi | Han, FengxiangX.
Lead and mercury are two of the most toxic heavy metals in environments. Mesosilicate-templated magnetic nanocarbons with ascorbic acid as carbon precursor were developed through nanocasting processes. The nanocarbon showed effective magnetic separation and the maximum adsorption capacity of 80.6 and 66.3 mg/g for Hg and Pb, respectively. Langmuir model well described adsorption processes of both Hg and Pb from water. Magnetic nanocarbon could be easily separated and incinerated, reducing the volume requiring the disposal. This study indicates that mesosilicate-templated nanocarbons with easy disposal potentials may be good candidates for cleansing Hg and Pb from contaminated water.
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