Performance and mechanism of hierarchically porous Ce-Zr oxide nanospheres encapsulated calcium alginate beads for fluoride removal from water | |
Chen, Liang1,2![]() | |
刊名 | RSC ADVANCES
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2016 | |
卷号 | 6期号:43页码:36296-36306 |
DOI | 10.1039/c6ra01337f |
文献子类 | Article |
英文摘要 | Hierarchically porous Ce-Zr oxide nanosphere encapsulated calcium alginate millimeter-sized beads (CZ-CABs) were synthesized by using a sol-gel templating technique. Their defluoridation performance, including static and dynamic adsorption, was systematically evaluated. The adsorption kinetic followed the pseudo-second-order model. The adsorption isotherm could be divided into two distinct regions depending on the fluoride concentrations, and the CZ-CABs exhibited a Langmuir-Freundlich maximum fluoride adsorption capacity of 137.6 mg g(-1) under neutral conditions. Such a specific adsorption isotherm indicated that various mechanisms were involved in the fluoride adsorption depending on fluoride concentrations, which were further demonstrated by FTIR and XPS analyses. The effect of pH and co-existing anions on fluoride adsorption was studied. Furthermore, column adsorption experiments were conducted, and the results showed a high efficiency of the CZ-CABs for the removal of fluoride from water on a continuous flow basis. |
WOS关键词 | DRINKING-WATER ; AQUEOUS-SOLUTION ; ADSORPTION MECHANISM ; CHITOSAN BEADS ; PHOTOCATALYTIC ACTIVITY ; IMPREGNATED CHITOSAN ; ACTIVATED CARBON ; ARSENIC REMOVAL ; TIO2 POWDERS ; ADSORBENT |
WOS研究方向 | Chemistry |
语种 | 英语 |
WOS记录号 | WOS:000374561300012 |
资助机构 | National Basic Research Program of China(2011CB933700) ; National Basic Research Program of China(2011CB933700) ; National Basic Research Program of China(2011CB933700) ; National Basic Research Program of China(2011CB933700) ; Natural Science Foundation of China(21277146 ; Natural Science Foundation of China(21277146 ; Natural Science Foundation of China(21277146 ; Natural Science Foundation of China(21277146 ; Anhui Major Technological Program(1501021005) ; Anhui Major Technological Program(1501021005) ; Anhui Major Technological Program(1501021005) ; Anhui Major Technological Program(1501021005) ; U1432131) ; U1432131) ; U1432131) ; U1432131) ; National Basic Research Program of China(2011CB933700) ; National Basic Research Program of China(2011CB933700) ; National Basic Research Program of China(2011CB933700) ; National Basic Research Program of China(2011CB933700) ; Natural Science Foundation of China(21277146 ; Natural Science Foundation of China(21277146 ; Natural Science Foundation of China(21277146 ; Natural Science Foundation of China(21277146 ; Anhui Major Technological Program(1501021005) ; Anhui Major Technological Program(1501021005) ; Anhui Major Technological Program(1501021005) ; Anhui Major Technological Program(1501021005) ; U1432131) ; U1432131) ; U1432131) ; U1432131) |
内容类型 | 期刊论文 |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/22397] ![]() |
专题 | 合肥物质科学研究院_中科院合肥智能机械研究所 |
作者单位 | 1.Chinese Acad Sci, Inst Intelligent Machines, Nanomat & Environm Detect Lab, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Liang,Zhang, Kaisheng,He, Junyong,et al. Performance and mechanism of hierarchically porous Ce-Zr oxide nanospheres encapsulated calcium alginate beads for fluoride removal from water[J]. RSC ADVANCES,2016,6(43):36296-36306. |
APA | Chen, Liang,Zhang, Kaisheng,He, Junyong,Cai, Xing-Guo,Xu, Weihong,&Liu, Jin-Huai.(2016).Performance and mechanism of hierarchically porous Ce-Zr oxide nanospheres encapsulated calcium alginate beads for fluoride removal from water.RSC ADVANCES,6(43),36296-36306. |
MLA | Chen, Liang,et al."Performance and mechanism of hierarchically porous Ce-Zr oxide nanospheres encapsulated calcium alginate beads for fluoride removal from water".RSC ADVANCES 6.43(2016):36296-36306. |
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