Yuanyao Ye, Xueyi Yan, Xi Li, Shijing Huang, Wei Jiang, Dongqi Liu, Yongzheng Ren, Dongle Cheng
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Ethanol Treated Mn–Zr Compound for Fluoride Removal and its Adsorption Mechanism
Fluoride is an essential element for humans, but its excessive intake can cause harm to health. Adsorption is recommended as one of the most widely applied, affordable and convenient defluorination technologies. In the present study, Mn–Zr–Ethanol (Mn–Zr–Et) composite was prepared by sol–gel method with ethanol used as a solvent and then utilized for the fluoride removal. The removal performance of fluoride by the Mn–Zr–Et adsorbent was investigated through batch experiments. The removal mechanism of fluorine was further studied through analyzing the characteristics of the Mn–Zr–Et adsorbent. Results show that the integration of ethanol with Mn–Zr adsorbent could greatly enhance the removal capacity of fluoride when compared to the Mn–Zr adsorbent, where the adsorption capacity of Mn–Zr–Et adsorbent was 32.87 mg g−1 at the initial fluoride concentration of 50 mg L−1. The Mn–Zr–Et adsorbent had the advantages of fast adsorption rate, wide pH adaptation range and resistance to interference of coexisting anions. To sum up, the Mn–Zr–Et composite is a promising and green adsorbent for the highly efficient removal of fluoride.
期刊介绍：
International Journal of Environmental Research is a multidisciplinary journal concerned with all aspects of environment. In pursuit of these, environmentalist disciplines are invited to contribute their knowledge and experience. International Journal of Environmental Research publishes original research papers, research notes and reviews across the broad field of environment. These include but are not limited to environmental science, environmental engineering, environmental management and planning and environmental design, urban and regional landscape design and natural disaster management. Thus high quality research papers or reviews dealing with any aspect of environment are welcomed. Papers may be theoretical, interpretative or experimental.
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