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Fluoride removal performance and mechanism of superparamagnetic Fe3O4 nanoparticles
Zhang, Kaisheng1; Zhu, Baisheng1; Yang, Wu2,3; Jia, Yong1; Jiang, Peijuan4; Zhang, Qiang4; Kong, Lingtao1; Liu, Jinhuai1
2021-09-01
Source PublicationDESALINATION AND WATER TREATMENT
ISSN1944-3994
Corresponding AuthorZhang, Kaisheng(kszhang@iim.ac.cn) ; Kong, Lingtao(ltkong@iim.ac.cn)
AbstractFluoride contamination in drinking water is one of the major problems worldwide imposing a serious threat to human health. For fluoride removal, the superparamagnetic Fe3O4 nanoparticles (Fe3O4 NPs) were successfully synthesized in a non-aqueous medium through a simple and facile hydrothermal reduction route. These nanoparticles had a mesoporous structure with a specific surface area of 70.14 m(2) g(-1). Fluoride adsorption behavior was investigated and the optimization of several experimental parameters was explored. The adsorption properties of the sample were excellent. The adsorption capacity could reach up to 70.64 mg g(-1) at 25 degrees C when the initial fluoride concentration was 200 mg L-1. Kinetic data were consistent with the pseudo-second-order model and also indicated the adsorption process was limited by the pore diffusion. The adsorption isotherms were found fitting well with the Freundlich model. The presence of bicarbonate, carbonate, and phosphate adversely affected the adsorption of fluoride. The revelation of the adsorption mechanism was based on Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy analysis, and zeta potential study. The results showed the surface hydroxyl groups and sulfate anions played important roles in the fluoride removal. In the magnetic hysteresis curves, the Fe3O4 nanoparticles exhibited a superparamagnetic characteristic with a saturation magnetization of 29.86 emu g(-1), which was beneficial for magnetic separation.
KeywordFluoride removal Adsorption Fe3O4 nanoparticles Ion-exchange Hydroxyl groups
DOI10.5004/dwt.2021.27541
WOS KeywordADSORPTION ; WATER ; FE ; ADSORBENT ; DEGRADATION ; OXIDE ; FERRIHYDRITE ; SPECTROSCOPY ; EQUILIBRIUM ; COMPOSITES
Indexed BySCI
Language英语
Funding ProjectState Key Research Development Program of China[2019YFC0408505] ; Natural Science Foundation of China[21976182] ; National Key Research Development Program of China Technology Boosts Economy 2020 ; Natural Science Foundation of Anhui province[2008085MB48] ; Program of China-Sri Lanka Joint Research and Demonstration Center for Water Technology and China-Sri Lanka Joint Center for Education and Research by Chinese Academy of Sciences, China
Funding OrganizationState Key Research Development Program of China ; Natural Science Foundation of China ; National Key Research Development Program of China Technology Boosts Economy 2020 ; Natural Science Foundation of Anhui province ; Program of China-Sri Lanka Joint Research and Demonstration Center for Water Technology and China-Sri Lanka Joint Center for Education and Research by Chinese Academy of Sciences, China
WOS Research AreaEngineering ; Water Resources
WOS SubjectEngineering, Chemical ; Water Resources
WOS IDWOS:000706891300026
PublisherDESALINATION PUBL
Citation statistics
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/125594
Collection中国科学院合肥物质科学研究院
Corresponding AuthorZhang, Kaisheng; Kong, Lingtao
Affiliation1.Chinese Acad Sci, HFIPS, Inst Solid State Phys, Environm Mat & Pollut Control Lab, Hefei 230031, Peoples R China
2.Anhui Univ, Inst Phys Sci, Hefei 230601, Peoples R China
3.Anhui Univ, Inst Informat Technol, Hefei 230601, Peoples R China
4.Anhui Environm Sci & Technol Grp Co Ltd, Hefei, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Kaisheng,Zhu, Baisheng,Yang, Wu,et al. Fluoride removal performance and mechanism of superparamagnetic Fe3O4 nanoparticles[J]. DESALINATION AND WATER TREATMENT,2021,233.
APA Zhang, Kaisheng.,Zhu, Baisheng.,Yang, Wu.,Jia, Yong.,Jiang, Peijuan.,...&Liu, Jinhuai.(2021).Fluoride removal performance and mechanism of superparamagnetic Fe3O4 nanoparticles.DESALINATION AND WATER TREATMENT,233.
MLA Zhang, Kaisheng,et al."Fluoride removal performance and mechanism of superparamagnetic Fe3O4 nanoparticles".DESALINATION AND WATER TREATMENT 233(2021).
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