Dense and continuous zeolite T membranes with controlled membrane thickness similar to that of the seed layer can be obtained on both macroporous Al2O3 tubes and hollow fibers with a largely shortened synthesis time through epitaxial growth of seeds and closing of voids among seeds, exhibiting a high flux of 5.9 and 9.8 kg m-2 h-1 with corresponding selectivity larger than 10000 and 3870 for a 90% isopropanol/water mixture at 348 K.
Bibliographical noteFunding Information:
The nancial support from the National Natural Science Foundation of China (No. 21376036 and 21236006), the National High Technology Research and Development Program of China (No. 2015AA03A602) and the Fundamental Research Funds for the Central Universities of China (No. DUT15ZD(G) 03) is acknowledged. TEM work was supported by the Center for Gas Separations Relevant to Clean Energy Technologies, an Energy Frontier Research Center funded by the US Department of Energy, Office of Science, Basic Energy Sciences under Award DE-SC0001015. The authors thank Prof. Zhengbao Wang for providing hollow ber supports.