期刊
JOURNAL OF CLEANER PRODUCTION
卷 199, 期 -, 页码 36-46出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2018.07.162
关键词
Metal hydroxide; Fluoride; Adsorption; Zirconium (Zr); Lanthanum (La)
资金
- National Natural Science Foundation of China [51178252]
- General Financial Grant from the Postdoctoral Science Foundation [2014M560556]
- Taishan Scholar Program [ts201511003]
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. (C) 2018 Elsevier Ltd. All rights reserved.
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