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A novel fractional crystallization route to porous TiO2-Fe2O3 composites: large scale preparation and high performances as a photocatalyst and Li-ion battery anode
Li, Li1; Zhang, Jianbo2; Zhu, Qingshan1
2016
Source PublicationDALTON TRANSACTIONS
ISSN1477-9226
Volume45Issue:7Pages:2888-2896
Abstract

Meso/macroporous TiO2-Fe2O3 composite particles are prepared using naturally abundant ilmenite via a novel heat treatment induced fractional crystallization strategy in a fluidized bed. Fluid-bed roasting in oxidizing and reducing environments is carried out in order to realize the fractional crystallization of ilmenite. Subsequently, acid leaching is employed to remove most of the ferrous phase and form porous TiO2-Fe2O3 composites. The influences of the reaction parameters on the composition, structure and properties of the products are studied. It is found that the pore structure and composition of the porous TiO2-Fe2O3 composite particles can be controlled simply by controlling some parameters, such as the roasting time, temperature, precursor particle size, and post-roasting treatment. Photocatalytic and electrochemical cycling measurements show that the synergism of porous structures and the controlled doping of alpha-Fe2O3 endow the as-obtained products with excellent visible light photocatalytic activity and provide enhanced performance in lithium ion batteries. The composite porous particles thus obtained may have some promising applications in the fields of photocatalysts, electrode materials, absorbers, pigments etc. This work opens a new avenue for reasonable combination of cost-effective raw materials, a large scale fabricating process and fine control over the structure and composition in the design and preparation of functional materials.

KeywordAnatase Tio2 Thin-films Nanoparticles Nanostructures Fabrication Morphology Separation Nanofibers Templates Nanowires
SubtypeArticle
Subject AreaChemistry, Inorganic & Nuclear ; Chemistry
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c5dt04091d
URL查看原文
Indexed BySCI
Language英语
WOS KeywordAnatase Tio2 ; Thin-films ; Nanoparticles ; Nanostructures ; Fabrication ; Morphology ; Separation ; Nanofibers ; Templates ; Nanowires
WOS Research AreaChemistry
WOS SubjectChemistry, Inorganic & Nuclear
Funding OrganizationChina Postdoctoral Science Foundation(2015M571127) ; National Outstanding Youth Science Fund Project of NSFC(21325628)
WOS IDWOS:000370165300018
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/20669
Collection研究所(批量导入)
Corresponding AuthorZhu, Qingshan
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Pangang Grp Res Inst Co Ltd, Panzhihua 61700, Peoples R China
Recommended Citation
GB/T 7714
Li, Li,Zhang, Jianbo,Zhu, Qingshan. A novel fractional crystallization route to porous TiO2-Fe2O3 composites: large scale preparation and high performances as a photocatalyst and Li-ion battery anode[J]. DALTON TRANSACTIONS,2016,45(7):2888-2896.
APA Li, Li,Zhang, Jianbo,&Zhu, Qingshan.(2016).A novel fractional crystallization route to porous TiO2-Fe2O3 composites: large scale preparation and high performances as a photocatalyst and Li-ion battery anode.DALTON TRANSACTIONS,45(7),2888-2896.
MLA Li, Li,et al."A novel fractional crystallization route to porous TiO2-Fe2O3 composites: large scale preparation and high performances as a photocatalyst and Li-ion battery anode".DALTON TRANSACTIONS 45.7(2016):2888-2896.
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