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Adsorption and magnetic removal of neutral red dye from aqueous solution using Fe3O4 hollow nanospheres
Iram, Mahmood1; Guo, Chen1; Guan, Yueping2; Ishfaq, Ahmad3; Liu, Huizhou1; Iram, M
2010-09-15
Source PublicationJOURNAL OF HAZARDOUS MATERIALS
ISSN0304-3894
Volume181Issue:1-3Pages:1039-1050
AbstractFe3O4 hollow nanospheres were prepared via a simple one-pot template-free hydrothermal method and were fully characterized. These magnetic spheres have been investigated for application as an adsorbant for the removal of dye contaminants from water. Because of the high specific surface area, nano-scale particle size, and hollow porous material, Fe3O4 hollow spheres showed favorable adsorption behavior for Neutral red. Factors affecting adsorption, such as, initial dye concentration, pH and contact time were evaluated. Langmuir and the Freundlich adsorption isotherms were selected to explicate the interaction of the dye and magnetic adsorbant. The characteristic parameters for each isotherm have been determined. The overall trend followed an increase of the sorption capacity with increasing dye concentration with a maximum of 90% dye removal. The monolayer adsorption capacity of magnetic hollow spheres (0.05 g) for NR in the concentration range studied, as calculated from the Langmuir isotherm model at 25 degrees C and pH 6, was found to be 105 mg g(-1). Adsorption kinetic followed pseudo-second-order reaction kinetics. Thermodynamic study showed that the adsorption processes are spontaneous and endothermic. The combination of the superior adsorption and the magnetic properties of Fe3O4 nanospheres can be useful as a powerful separation tool to deal with environmental pollution. (C) 2010 Elsevier B.V. All rights reserved.
KeywordFe3o4 Hollow Nanospheres Adsorption Neutral Red Color Removal Adsorption Isotherms
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
DOI10.1016/j.jhazmat.2010.05.119
Indexed BySCI
Language英语
WOS KeywordTEMPLATE-FREE SYNTHESIS ; CARBON NANOTUBES ; ACTIVATED CARBON ; WATER-TREATMENT ; CATIONIC DYES ; BASIC DYE ; SPHERES ; WASTE ; MONODISPERSE ; MICROSPHERES
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Engineering, Civil ; Environmental Sciences
WOS IDWOS:000280601300137
Citation statistics
Cited Times:291[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5711
Collection湿法冶金清洁生产技术国家工程实验室
Corresponding AuthorIram, M
Affiliation1.Chinese Acad Sci, Key Lab Green Proc & Engn, State Key Lab Biochem Engn, Inst Proc Engn, Beijing 100190, Peoples R China
2.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
3.Chinese Acad Sci, Inst Appl Math, Acad Math & Syst Sci, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Iram, Mahmood,Guo, Chen,Guan, Yueping,et al. Adsorption and magnetic removal of neutral red dye from aqueous solution using Fe3O4 hollow nanospheres[J]. JOURNAL OF HAZARDOUS MATERIALS,2010,181(1-3):1039-1050.
APA Iram, Mahmood,Guo, Chen,Guan, Yueping,Ishfaq, Ahmad,Liu, Huizhou,&Iram, M.(2010).Adsorption and magnetic removal of neutral red dye from aqueous solution using Fe3O4 hollow nanospheres.JOURNAL OF HAZARDOUS MATERIALS,181(1-3),1039-1050.
MLA Iram, Mahmood,et al."Adsorption and magnetic removal of neutral red dye from aqueous solution using Fe3O4 hollow nanospheres".JOURNAL OF HAZARDOUS MATERIALS 181.1-3(2010):1039-1050.
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