Preparation and characterization of α-Al2O3 hollow fiber membranes with four-channel configuration
Preparation and characterization of α-Al2O3 hollow fiber membranes with four-channel configuration
复制标题
四通道α-Al2O3中空纤维膜的制备与表征
DOI：
10.1016/j.ceramint.2014.09.065
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发表时间：
2015-01-01
影响因子：
5.2
通讯作者：
Gu, Xuehong
中科院分区：
文献类型：
--
作者：
Shi, Zhenzhou;Zhang, Yuting;Gu, Xuehong
首次采用相转化和烧结相结合的方法制备了四通道α-Al 2 O3陶瓷中空纤维。中空纤维可以提供低的运输阻力以及高的机械强度。研究了气隙和烧结温度对中空纤维性能的影响。在气隙为100 mm、烧结温度为1450 ℃、烧结时间为5 h的条件下，制备的具有交联结构的四通道纤维在0.1 MPa下的纯水通量为1.93 m（3）m（-2）h（-1），断裂载荷为18.5 N，优于单通道陶瓷中空纤维的性能，为上级。结果表明，四通道陶瓷中空纤维具有很好的应用前景。(C)2014 Elsevier Ltd和Techna Group S.r.l. All rights reserved.
Four-channel alpha-Al2O3 ceramic hollow fibers were first fabricated by a combined phase-inversion and sintering technique. The hollow fibers could provide low transport resistance as well as high mechanical strength. Influences of air gap and sintering temperature on properties of the obtained hollow fibers were investigated. Using an air gap of 100 mm and a sintering temperature of 1450 degrees C for 5 h, the as-prepared fourchannel fibers with the cross-linking configuration showed a pure water flux of 1.93 m(3) m(-2) h(-1) at 0.1 MPa and a fracture load of 18.5 N, which was superior to that of single-channel ceramic hollow fiber. It is suggested that the four-channel ceramic hollow fibers exhibit great potential for practical applications. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.