Preparation of microfibrous supported silicalite-1 zeolite membrane by secondary growth method

被引：0

作者：

Liu, Jian ^{[1
]}

Yan, Ying ^{[2
]}

Zhang, Hui-Ping ^{[2
]}

机构：

[1] Key Laboratory of Functional Organometallic Materials of Hunan Province College, Hengyang Normal University, Hengyang

[2] School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou

来源：

Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities | 2015年 / 29卷 / 02期

关键词：

Anodic oxidation method; Crystallization temperature; Crystallization time; Secondary growth method; Stainless steel fiber; Zeolite membrane;

D O I：

10.3969/j.issn.1003-9015.2015.02.029

中图分类号：

学科分类号：

摘要：

Stainless steel microfibrous supported silicalite-1 zeolite membrane (silicalite-1 membrane/SMF) was prepared by secondary growth method from TEOS as Si source. The effects of different operation parameters such as support pretreatment methods, crystallization temperature and crystallization time on the silicalite-1 membrane/SMF were studied. The morphology and microstructure of silicalite-1 membrane/SMF were characterized by XRD, SEM and ASAP-2020 automatic adsorption instrument, respectively. The results show that the silicalite-1 zeolite membrane prepared by treating support with anodic oxidation method is more continuous and denser than that with calcinations. The surface of zeolite membrane is much denser and the size of crystal grains increases with increasing the crystallization temperature from 100℃ to 160℃ or prolonging the crystallization time from 12h to 96h. The specific surface areas, total pore volume and micropore volume of the silicalite-1 membrane/SMF are 93.24 m2·g-1, 0.0654 cm3·g-1 and 0.0382 cm3·g-1, respectively. The percentage of micropore volume is 58% of total pore volume. The silicalite-1 membrane content determined for silicalite-1/SMF composite is 23.3 %(wt). ©, 2015, Zhejiang University. All right reserved.

引用

页码：432 / 437

页数：5

共 16 条

[11]

Nikolajsen K., Kiwi-Minsker L., Renken A., Structured fixed-bed adsorber based on zeolite/sintered metal fibre for low concentration VOC removal, Chemical Engineering Research and Design, 84, A7, pp. 562-568, (2006)

[12]

Hedlund J., Schoeman B.J., Sterte J., Synthesis of ultra thin films of molecular sieves by the seed film method, Studies in Surface Science and Catalysis, 105, pp. 2203-2210, (1997)

[13]

Li Y., Zhang X.F., Wang J.Q., Preparation for ZSM-5 membranes by a two- stage varying-temperature synthesis, Separation and Purification Technology, 25, 1-3, pp. 459-466, (2001)

[14]

Persson A.E., Schoeman B.J., Sterte J., The synthesis of discrete colloidal particles of TPA-silicalite-1, Zeolites, 14, 7, pp. 557-567, (1994)

[15]

Li Q., Creaser D., Sterte J., The nucleation period for TPA-silicalite-1 crystallization determined by a two-stage varying-temperature synthesis, Microporous and Mesoporous Materials, 31, 1-2, pp. 141-150, (1999)

[16]

Vu D., Marquez M., Larsen G., A facile method to deposit zeolites Y and L onto cellulose fibers, Microporous and Mesoporous Materials, 55, 1, pp. 93-101, (2002)

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