Enhanced performance arising from low-temperature preparation of α-alumina membranes via titania doping assisted sol-gel method

被引：32
作者：
Chen, Xianfu [1 ]
Zou, Dong [1 ]
Lin, Yuqing [1 ,2 ]
Zhang, Wei [1 ]
Qiu, Minghui [1 ]
Fan, Yiqun [1 ]
机构：
[1] Nanjing Tech Univ, Coll Chem Engn, State Key Lab Mat Oriented Chem Engn, Nanjing 210009, Jiangsu, Peoples R China
[2] Nanyang Technol Univ, Singapore Membrane Technol Ctr, Nanyang Environm & Water Res Inst, Singapore, Singapore
来源：
JOURNAL OF MEMBRANE SCIENCE | 2018年 / 559卷
基金：
中国国家自然科学基金;
关键词：
Ceramic membrane; Mesoporous; alpha-alumina; Titania doping; Phase transition; NANOFILTRATION MEMBRANES; WASTE-WATER; ULTRAFILTRATION MEMBRANES; GAMMA-ALUMINA; STABILITY; RETENTION; BOEHMITE; ZRO2; PERMEABILITY; GAMMA-AL2O3;
D O I：
10.1016/j.memsci.2018.04.032
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A high-efficiency alumina-titania membrane was proposed and fabricated, by using a titania-doping assisted sol-gel method. Two kinds of aqueous titania sols with different particle size distributions were introduced into boehmite sol. The phase transition temperature of alumina from. to a phase is prone to reducing with the aid of titania doping of 10 dwb%, thus a good a phase membrane was obtained under a relatively lower thermal treatment of 1050 degrees C. Compared to the alpha-alumina membrane without the titania addition, the resultant Al2O3-TiO2 membrane presented a better separation precision and higher water permeability. The average pore size was decreased from 16.0 to 9.8 nm, while the pure water permeability was improved from 200 to 233 Lm(-2) h(-1) bar(-1).
引用
收藏
页码：19 / 27
页数：9
相关论文
共 57 条
[1]   Preparation, characterization and microstructural optimization of a thin γ-alumina membrane on a porous stainless steel substrate [J].
Abedini, Sanam ;
Parvin, Nader ;
Ashtari, Parviz .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 533 :1-8
[2]   An efficient route to aqueous phase synthesis of nanocrystalline γ-Al2O3 with high porosity: From stable boehmite colloids to large pore mesoporous alumina [J].
Bleta, Rudina ;
Alphonse, Pierre ;
Pin, Lisa ;
Gressier, Marie ;
Menu, Marie-Joelle .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2012, 367 :120-128
[3]   Thermal stability of γ-Al2O3 coatings for challenging cutting operations [J].
Bobzin, K. ;
Bagcivan, N. ;
Reinholdt, A. ;
Ewering, M. .
SURFACE & COATINGS TECHNOLOGY, 2010, 205 (05) :1444-1448
[4]   Retention of heavy metal ions with nanofiltration inorganic membranes by grafting chelating groups [J].
Bougen, A ;
Rabiller-Baudry, M ;
Chaufer, B ;
Michel, F .
SEPARATION AND PURIFICATION TECHNOLOGY, 2001, 25 (1-3) :219-227
[5]   Modified colloidal sol-gel process for fabrication of titania nanofiltration membranes with organic additives [J].
Cai, Yuanyuan ;
Wang, Yi ;
Chen, Xianfu ;
Qiu, Minghui ;
fan, Yiqun .
JOURNAL OF MEMBRANE SCIENCE, 2015, 476 :432-441
[6]   Hydrophilic modification of Al2O3 microfiltration membrane with nano-sized γ-Al2O3 coating [J].
Chang, Qibing ;
Zhou, Jian-er ;
Wang, Yongqing ;
Wang, Jinming ;
Meng, Guangyao .
DESALINATION, 2010, 262 (1-3) :110-114
[7]   A facile nanoparticle doping sol-gel method for the fabrication of defect-free nanoporous ceramic membranes [J].
Chen, Xianfu ;
Lin, Yuqing ;
Lu, Yawei ;
Qiu, Minghui ;
Jing, Wenheng ;
Fan, Yiqun .
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS, 2015, 5 :12-15
[8]   Preparation of high-flux γ-alumina nanofiltration membranes by using a modified sol-gel method [J].
Chen, Xianfu ;
Zhang, Wei ;
Lin, Yuqing ;
Cai, Yuanyuan ;
Qiu, Minghui ;
Fan, Yiqun .
MICROPOROUS AND MESOPOROUS MATERIALS, 2015, 214 :195-203
[9]   Preparation of zirconia nanofiltration membranes through an aqueous sol-gel process modified by glycerol for the treatment of wastewater with high salinity [J].
Da, Xiaowei ;
Chen, Xianfu ;
Sun, Baohong ;
Wen, Juanjuan ;
Qiu, Minghui ;
Fan, Yiqun .
JOURNAL OF MEMBRANE SCIENCE, 2016, 504 :29-39
[10]   Solvent flux behavior and rejection characteristics of hydrophilic and hydrophobic mesoporous and microporous TiO2 and ZrO2 membranes [J].
Dobrak, A. ;
Verrecht, B. ;
Van den Dungen, H. ;
Buekenhoudt, A. ;
Vankelecom, I. F. J. ;
Van der Bruggen, B. .
JOURNAL OF MEMBRANE SCIENCE, 2010, 346 (02) :344-352
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