Fabrication of α-Fe2O3/TiO2 bi-functional composites with hierarchical and hollow structures and their application in water treatment

被引：3
作者：
Li, Yinhui [1 ]
Zhang, Na [1 ]
Chen, Jianxin [1 ]
Li, Ruijuan [1 ]
Li, Liang [1 ]
Li, Kunyu [1 ]
机构：
[1] Hebei Univ Technol, Minist Educ, Sch Marine Sci & Engn, Engn Res Ctr Seawater Utilizat Technol, Tianjin 300130, Peoples R China
来源：
JOURNAL OF NANOPARTICLE RESEARCH | 2016年 / 18卷 / 02期
基金：
中国国家自然科学基金;
关键词：
alpha-Fe2O3/TiO2; Hierarchical and hollow structures; Pb2+; Simultaneous adsorption; Photocatalytic oxidation; Water resources; HEAVY-METAL IONS; AQUEOUS-SOLUTIONS; REMOVAL; ADSORPTION; NANOCOMPOSITES; MEMBRANE; OXIDES;
D O I：
10.1007/s11051-016-3336-y
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The alpha-Fe2O3/TiO2 bi-functional composites with hierarchical and hollow structures are fabricated through a hydrothermal route. The adsorption performance and photocatalytic activity of the composites towards Pb2+ are investigated in this work. Different adsorption kinetics models and equilibrium models are used to explore the adsorption behavior of hierarchical alpha-Fe2O3/TiO2 hollow spheres. Experimental data show that adsorption kinetics of the hierarchical alpha-Fe2O3/TiO2 hollow spheres can be fitted well by the pseudo-second-order model, while the isothermal data can be perfectly described by the Langmuir adsorption model. The maximum adsorption capacity of the hierarchical alpha-Fe2O3/TiO2 hollow spheres is 32.36 mg g(-1). Moreover, the hierarchical alpha-Fe2O3/TiO2 hollow spheres possess photocatalytic oxidation character under simulated solar light irradiation. The results demonstrate that the hierarchical alpha-Fe2O3/TiO2 hollow spheres, as effective and cheap materials, can be applied to the removal of heavy metal ions from wastewater.
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页码：1 / 8
页数：8
相关论文
共 28 条
[1]   Palm shell activated carbon impregnated with task-specific ionic-liquids as a novel adsorbent for the removal of mercury from contaminated water [J].
Abu Ismaiel, Ahmed ;
Aroua, Mohamed Kheireddine ;
Yusoff, Rozita .
CHEMICAL ENGINEERING JOURNAL, 2013, 225 :306-314
[2]   Hybrid flotation -: membrane filtration process for the removal of heavy metal ions from wastewater [J].
Blöcher, C ;
Dorda, J ;
Mavrov, V ;
Chmiel, H ;
Lazaridis, NK ;
Matis, KA .
WATER RESEARCH, 2003, 37 (16) :4018-4026
[3]   Low-Cost Synthesis of Flowerlike α-Fe2O3 Nanostructures for Heavy Metal Ion Removal: Adsorption Property and Mechanism [J].
Cao, Chang-Yan ;
Qu, Jin ;
Yan, Wen-Sheng ;
Zhu, Jun-Fa ;
Wu, Zi-Yu ;
Song, Wei-Guo .
LANGMUIR, 2012, 28 (09) :4573-4579
[4]   Selective removal of the heavy metal ions from waters and industrial wastewaters by ion-exchange method [J].
Dabrowski, A ;
Hubicki, Z ;
Podkoscielny, P ;
Robens, E .
CHEMOSPHERE, 2004, 56 (02) :91-106
[5]   Heavy metal ions retention by bi-functionalized lignin: Synthesis, applications, and adsorption mechanisms [J].
Ge, Yuanyuan ;
Li, Zhili ;
Kong, Yan ;
Song, Quanpeng ;
Wang, Kunqi .
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 2014, 20 (06) :4429-4436
[6]   POTENTIAL-DEPENDENT SURFACE SEGREGATION IN LEAD PLUS RUTHENIUM PYROCHLORE PB2RU2O7-Y [J].
GOKAGAC, G ;
KENNEDY, BJ .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1993, 353 (1-2) :71-80
[7]   Synthesis of hierarchically structured metal oxides and their application in heavy metal ion removal [J].
Hu, Jin-Song ;
Zhong, Liang-Shu ;
Song, Wei-Guo ;
Wan, Li-Jun .
ADVANCED MATERIALS, 2008, 20 (15) :2977-2982
[8]   Application of graphitic carbon nitride for the removal of Pb(II) and aniline from aqueous solutions [J].
Hu, Rui ;
Wang, Xiangke ;
Dai, Songyuan ;
Shao, Dadong ;
Hayat, Tasawar ;
Alsaedi, Ahmed .
CHEMICAL ENGINEERING JOURNAL, 2015, 260 :469-477
[9]   Hierarchically Structured Manganese Oxide-Coated Magnetic Nanocomposites for the Efficient Removal of Heavy Metal Ions from Aqueous Systems [J].
Kim, Eun-Ju ;
Lee, Chung-Seop ;
Chang, Yoon-Young ;
Chang, Yoon-Seok .
ACS APPLIED MATERIALS & INTERFACES, 2013, 5 (19) :9628-9634
[10]   Magnetic Chitosan Nanocomposites: A Useful Recyclable Tool for Heavy Metal Ion Removal [J].
Liu, Xiaowang ;
Hu, Qiyan ;
Fang, Zhen ;
Zhang, Xiaojun ;
Zhang, Beibei .
LANGMUIR, 2009, 25 (01) :3-8
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