TY - JOUR
T1 - Formation mechanism of metal-organic framework membranes derived from reactive seeding approach
AU - Nan, Jiangpu
AU - Dong, Xueliang
AU - Wang, Wenjin
AU - Jin, Wanqin
PY - 2012/6/1
Y1 - 2012/6/1
N2 - Metal-organic framework (MOF) membranes have attracted great attention for their potential applications in gas and liquid separations. Recently, we have developed a novel reactive seeding (RS) method for the synthesis of MOF membranes, such as MIL-53 and MIL-96 membranes, on porous inorganic supports. By the RS method, a homogeneous seeding layer well bonding with the support could be formed for the secondary hydrothermal synthesis of high-quality MOF membranes. Our previous study demonstrated the RS approach was of versatility. However, the formation mechanism of MOF membranes derived from RS approach is unclear. In this work, taking MIL-96 as an example, we investigated the interactions between support and organic precursor and the differences between in situ synthesis and RS route. A formation mechanism of RS method was proposed. Based on the mechanism, the α-Al 2O 3 firstly reacted with H 2O to produce γ-AlO(OH), and then the γ-AlO(OH) interacted with H 3btc to form the MIL-96 seed crystals.
AB - Metal-organic framework (MOF) membranes have attracted great attention for their potential applications in gas and liquid separations. Recently, we have developed a novel reactive seeding (RS) method for the synthesis of MOF membranes, such as MIL-53 and MIL-96 membranes, on porous inorganic supports. By the RS method, a homogeneous seeding layer well bonding with the support could be formed for the secondary hydrothermal synthesis of high-quality MOF membranes. Our previous study demonstrated the RS approach was of versatility. However, the formation mechanism of MOF membranes derived from RS approach is unclear. In this work, taking MIL-96 as an example, we investigated the interactions between support and organic precursor and the differences between in situ synthesis and RS route. A formation mechanism of RS method was proposed. Based on the mechanism, the α-Al 2O 3 firstly reacted with H 2O to produce γ-AlO(OH), and then the γ-AlO(OH) interacted with H 3btc to form the MIL-96 seed crystals.
KW - Formation mechanism
KW - MIL-96 membrane
KW - Metal-organic frameworks
KW - Reactive seeding
UR - http://www.scopus.com/inward/record.url?scp=84862786845&partnerID=8YFLogxK
U2 - 10.1016/j.micromeso.2012.01.010
DO - 10.1016/j.micromeso.2012.01.010
M3 - 文章
AN - SCOPUS:84862786845
SN - 1387-1811
VL - 155
SP - 90
EP - 98
JO - Microporous and Mesoporous Materials
JF - Microporous and Mesoporous Materials
ER -