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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
发表期刊DALTON TRANSACTIONS
ISSN1477-9226
卷号45期号:7页码:2888-2896
摘要

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.

关键词Anatase Tio2 Thin-films Nanoparticles Nanostructures Fabrication Morphology Separation Nanofibers Templates Nanowires
文章类型Article
学科领域Chemistry, Inorganic & Nuclear ; Chemistry
WOS标题词Science & Technology ; Physical Sciences
DOI10.1039/c5dt04091d
URL查看原文
收录类别SCI
语种英语
关键词[WOS]Anatase Tio2 ; Thin-films ; Nanoparticles ; Nanostructures ; Fabrication ; Morphology ; Separation ; Nanofibers ; Templates ; Nanowires
WOS研究方向Chemistry
WOS类目Chemistry, Inorganic & Nuclear
项目资助者China Postdoctoral Science Foundation(2015M571127) ; National Outstanding Youth Science Fund Project of NSFC(21325628)
WOS记录号WOS:000370165300018
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/20669
专题研究所(批量导入)
通讯作者Zhu, Qingshan
作者单位1.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
推荐引用方式
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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