Xinsheng PengZhejiang University, China
Xinsheng Peng is a professor at Department of Materials Scinece and Engineering in Zhejiang University (China). He received his PhD from Institute of Solid State Physics, Chinese Academy of Sciences in 2003. He joined the Department of Chemistry of Lakehead University, Canada, as a postdoctor from 2003 to 2005. From 2005 to 2010, he worked at the National Institute for Materials Science (NIMS), Japan, as a postdoctor, research fellow and researcher of NIMS, respectively. Starting from June of 2010, he joined the Department of Material Science and Engineering, Zhejiang University, China, as a full professor.
He has published more than 100 SCI papers, including Science, Nature Materials, Nature Nanotechnology, Nature Communications, and so on. All the papers have been cited more than 3000 times with H index of 32. He has licensed 10 patents (4 Japan, 1 Us, and 5 China). He has also received several foundations and from Japan Science and Technology Agency, National Natural Science Foundations of China, and awards such as Thousands talent of Zhejiang Province, Outstanding Young Scientists Foundation of Zhejiang Province, New Century Excellent Talents Program. His current research focuses on the functional nanomaterials for novel separation membranes, catalyst and energy storage.
Title:Two Dimensional Layered Materials for Novel Separation Membranes
SymposiumEnvironmental Materials
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Abstract
Pressure-driven ultrafiltration membranes are important in separation applications.[1-3] Advanced filtration membranes with great permeance and superior rejection must be developed to meet rising worldwide demand. Here we report on layered two dimensional nanmosheets assembled ultrafiltration membranes with a network of nanochannels with a narrow size distribution (3-5 nm) and superior separation performance.[4-8] Their permeance offers a ten-hundred folds enhancement without sacrificing the rejection compared to that of commercial ultrafiltration membranes with similar rejection. This flow enhancement is attributed to the porous structure and significant reduced channel length. The pressure-dependent separation behavior is also reported. The water flow through these hydrophilic nanochannels is identified as viscous. This approach is also extendable to other laminate membranes, providing great potential for accelerating separation and water-purification processes.
References:
[1] B. Van der Bruggen, C. Vandecasteele, T. Van Gestel, W. Doyen, R. Leysen, Environmental progress 2003; 22(1): 46-56.
[2] X. Peng, J. Jin, Y. Nakamura, T. Ohno, I. Ichinose, Nat. Nanotech.4, 353-7 (2009).
[3] X. Peng,J. Jin, I. Ichinose, Adv. Funct. Mater. 17, 1849-1855 (2007).
[4] H. Huang, Z. Song, N. Wei, L. Shi, Y. Mao, Y. Ying, L. Sun, Z. Xu, X. Peng, Nat. Commun.. 4:2979 (2013).
[5] H. B. Huang, Y. Y. Mao, Y. L. Ying, Y. Liu, L. W. Sun, X. S. Peng, Chem. Commun., 49, 5963. (2013).
[6] L. Sun, H. Huang, X. Peng, Chem. Commun., 49, 10718—10720 (2013).
[7] L. Sun, Y. Ying, H. Huang, Z. Song, Y. Mao, Z. Xu, X. Peng, ACS NANO 2014.DOI. (in press).
[8] H. Huang, Y. Ying, X. Peng, J. Mater. Chem. A. 2014. (In press)