Regensburg 2016 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 43: Poster: The Physics of Water Interactions with Biological Matter
CPP 43.5: Poster
Mittwoch, 9. März 2016, 18:15–21:00, Poster B2
Water Transport through 1-nm-Thick Functional Carbon Nanomembranes — •Yang Yang1, Xianghui Zhang1, Sergey Shishatskiy2, Jan Wind2, Volker Abetz2, André Beyer1, and Armin Gölzhäuser1 — 1Fakultät für Physik, Universität Bielefeld, 33615 Bielefeld, Germany — 2Institute of Polymer Research, Helmholtz-Zentrum Geesthacht, 21502 Geesthacht, Germany
Water transport through two-dimensional materials is fundamentally important for understanding the interactions of water and materials. From an application point of view, membrane thickness plays an essential role in efficient separation since a minimal thickness can minimize the transport resistance and maximize permeate flux. The synthesis of 1-nm-thick functional carbon nanomembranes (CNMs) offers exciting opportunities for enriching our understanding of water interactions as well as for developing a new class of efficient membranes [1]. CNMs are made by electron induced cross-linking of aromatic self-assembled monolayers and can be transferred to almost any surface. Here we present the fabrication of a composite membrane which comprises a CNM top layer and a porous polyacrylonitrile (PAN) support membrane. The membrane thickness, composition and structure were characterized by employing X-ray photoelectron spectroscopy, atomic force microscopy and helium ion microscopy. The water transport through CNMs is investigated in a pressure-driven process and the first permeation results will be presented and discussed.
[1] M. Ai, et al. Carbon Nanomembranes (CNMs) Supported by Polymer: Mechanics and Gas Permeation. Adv. Mater. 2014, 26, 3421