氟化物
污染
受污染的水
水污染
多孔性
陶瓷
材料科学
化学工程
环境化学
化学
复合材料
无机化学
工程类
生态学
生物
作者
Xiaodan Huo,Hualei Liu,Peili Zhao,Shuyu Liu,Xia Yin,Yi‐Tao Liu,Jianyong Yu,Bin Ding
标识
DOI:10.1021/acsanm.5c01027
摘要
The adsorption of fluoride ions from contaminated water using activated alumina (Al2O3) is recognized as a sustainable water purification technology. Nevertheless, Al2O3-based adsorbents are still limited by their restricted number of active sites and specific surface area. In this research, we present an approach for the synthesis of three-dimensional ceramic materials composed of spiny and porous nanofibers through gelation electrospinning and staged calcination processes. As a feasibility demonstration, we design Ba-doped Al2O3 nanofibrous sponges (B2A NFS) with high specific surface area, multilevel cavities, and fluffy structure, achieving an impressive fluoride ion removal efficiency of 96.9% owing to their synergistic adsorption mechanisms. Furthermore, the B2A NFS can withstand compressive forces exceeding 100 g weights without collapsing, demonstrating resilience even after 50% compression and tens of thousands of cyclic fatigue tests. This work presents an efficient approach for treating fluoride ion wastewater toward the operational realization of water purification processes.
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