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Morphology controlled synthesis of hierarchical structured Fe2O3 from natural ilmenite and its high performance for dyes adsorption
Kang, Dongjuan1; Hu, Chaoquan1; Zhu, Qingshan1,2
2018-11-30
Source PublicationAPPLIED SURFACE SCIENCE
ISSN0169-4332
Volume459Pages:327-335
Abstract

A facile method using acid leachate of ilmenite as the precursor has been successfully developed to tailor the structure of Fe2O3. The morphology and structure of the final product can be controlled from nanoparticles, microcubes, rhombohedrons to microspheres by varying the synthetic parameters. Detailed characterization showed that the microspheres had a hierarchical structure and was actually consisted of nanoblocks subunits. A possible mechanism was proposed for the formation of the hierarchically structured Fe2O3 microspheres. Due to its large surface area and abundant functional groups, the Fe2O3 microspheres could efficiently remove organic dyes in aqueous solution. The measured maximum adsorption capacities were 723.8, 150.7, and 54.5 mg/g for Congo red, Methyl orange, and Methylene blue, respectively, which were generally higher than those for Fe2O3 with other structures reported in literature. This work provides a novel approach to using waste as the resource for the preparation of low-cost and efficient adsorbent materials.

KeywordHierarchical Structured Fe2o3 Ilmenite Acid Leachate Adsorption Organic Dyes
DOI10.1016/j.apsusc.2018.07.220
Language英语
WOS KeywordAlpha-fe2o3 Hollow Spheres ; Layered Double Hydroxide ; Large-scale Preparation ; Water-treatment ; Methyl-orange ; Enhanced Adsorption ; Carbon Nanotubes ; Aqueous-solution ; Panzhihua Ilmenite ; Oxide Microspheres
Funding ProjectChina Postdoctoral Science Foundation[2017 M611001]
WOS Research AreaChemistry ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
Funding OrganizationChina Postdoctoral Science Foundation
WOS IDWOS:000444600300042
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/26007
Collection中国科学院过程工程研究所
Corresponding AuthorZhu, Qingshan
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Div Mineral Proc Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Kang, Dongjuan,Hu, Chaoquan,Zhu, Qingshan. Morphology controlled synthesis of hierarchical structured Fe2O3 from natural ilmenite and its high performance for dyes adsorption[J]. APPLIED SURFACE SCIENCE,2018,459:327-335.
APA Kang, Dongjuan,Hu, Chaoquan,&Zhu, Qingshan.(2018).Morphology controlled synthesis of hierarchical structured Fe2O3 from natural ilmenite and its high performance for dyes adsorption.APPLIED SURFACE SCIENCE,459,327-335.
MLA Kang, Dongjuan,et al."Morphology controlled synthesis of hierarchical structured Fe2O3 from natural ilmenite and its high performance for dyes adsorption".APPLIED SURFACE SCIENCE 459(2018):327-335.
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