期刊
APPLIED SURFACE SCIENCE
卷 498, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2019.143785
关键词
Ni-Al@TPS adsorbent; Pseudo-first-order; Synergistic effect; Tetragonal prism shape; Langmuir
类别
资金
- Department of Science and Technology, Ministry of Science and Technology, Government of India under the Scheme of Establishment of Women Technology Park [SEED/WTP/063/2014]
Water with high fluoride content is detrimental to health and drinking water quality needs to be closely monitored. Among the various techniques used for fluoride removal, adsorption processes have been found to yield satisfactory results. Herein, Ni-Al adsorbent has been synthesized by a simple co-precipitation method and utilized efficiently for fluoride adsorptive removal studies. The surface properties, functionality, and crystallinity were analyzed by techniques such as FESEM, EDX, TEM, BET, XPS, XRD, and FTIR. XPS and FTIR studies were used to explain the fluoride adsorption mechanism by the hydroxyl group ion-exchange and ion-pair formations. The kinetics of the adsorptive removal process follow the pseudo-second-order and Freundlich isotherm fitted best in the adsorption process. Equilibrium was reached within 16 min, up to the permissible limit > 1.5 mg/L. The adsorption process was exothermic, feasible and by physisorption. The excellent adsorption capacity of the adsorbent together with other advantages, such as reusability, easy separation, the absence of interfering ions makes it a suitable adsorbent for the removal of fluoride from water.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据