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- W2908361569 abstract "Rare earth elements are an important strategic resource. As one of the most valuable member, lanthanum plays a key role in lanthanide. However, trace Al(III) impurity in lanthanum materials can seriously damage the performance of lanthanum materials. In this paper, a nitrogen-containing activated carbon, AC-PN-700, was synthesized using pine needle as raw material and KOH as activator. The AC-PN-700 was characterized by surface area analyzer, elemental analysis and FT-IR. The adsorption and selective ability of AC-PN-700 towards Al(III) were investigated. The BET specific surface area of AC-PN-700 was 596.4 m2.g−1, and the average pore diameter was 2.7 nm. Depend on its large specific surface, well-developed internal pore structure and abundant nitrogen-containing functional groups, the AC-PN-700 possesses strong adsorption affinity and excellent recognition selectivity towards Al(III). The adsorption capacity of AC-PN-700 towards Al(III) could reach to 3.89 mg.g−1, removal rate towards Al(III) was almost 100%, and relative selectivity coefficients with respect to La(III) is 9.5. The empirical Freundlich isotherm was found to describe well the equilibrium adsorption data. In addition, AC-PN-700 possesses better regeneration ability and reusability." @default.
- W2908361569 created "2019-01-11" @default.
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- W2908361569 date "2019-01-02" @default.
- W2908361569 modified "2023-10-14" @default.
- W2908361569 title "Selective adsorption and removal ability of pine needle-based activated carbon towards Al(III) from La(III)" @default.
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- W2908361569 doi "https://doi.org/10.1080/01932691.2018.1464933" @default.
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