标题：Highly selective and efficient removal of fluoride from aqueous solution by Zr–La dual-metal hydroxide anchored bio-sorbents
作者：Shang, Yanan ;Xu, Xing ;Gao, Baoyu ;Yue, Qinyan
作者机构：[Shang, Yanan ;Xu, Xing ;Gao, Baoyu ;Yue, Qinyan ] Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Scie 更多
来源：Journal of Cleaner Production
摘要：The pomelo peel was used as a bio-carrier for anchoring the dual-metal hydroxide (Zr–La), forming the Zr–La/PP composites. Morphology properties of the Zr–La/PP composites indicated that a large amount of Zr–La dual-metal hydroxides were self-aggregated on the virgin biomaterials, forming the different sizes (10–100 nm) of nano-structured aggregates on the Zr–La/PP composites. The Zr distribution corresponded well to the dispersed La in the Zr–La/PP composites. Fluoride capture by Zr–La/PP composites increased with the increase in temperature. The preferential fluoride adsorption by the Zr–La/PP composites can also be achieved in magnitudes of coexisting ions. The Zr–La/PP composites exhibited a promising fluoride adsorption capacity with a significantly excellent stability. Several column adsorption-desorption cycles exhibited that there were no significant loss in fluoride capacity; this indicated the high adsorption stability of Zr–La/PP composites. Based on all results above, it was suggested that the Zr–La/PP composites could be used as a promising adsorbent for fluoride removal in real application.
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