✦ LIBER ✦

AFM and STM Characterization of TiO2?Ultrafiltration Membranes

✍ Scribed by Beyer, Dirk; Richter, Hannes; Tomandl, Gerhard

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 344 KB
Volume: 25
Category: Article
ISSN: 0142-2421
DOI: 10.1002/(sici)1096-9918(199706)25:7/8<593::aid-sia277>3.0.co;2-q

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✦ Synopsis

Atomic force microscopy (AFM) and scanning tunnelling microscopy (STM) were used to investigate the surface of ultraÐltration membranes with pore sizes of ¿10 nm. It is widely accepted that conventional AFM with TiO 2

or Si tips is not able to resolve pores in supported ceramic membranes with a diameter of AE40 nm. In this Si 3 N 4 study it should be tested whether it is possible to lower this border for further characterization of nanoÐltration membranes. Here we present di †erent ways of imaging and discuss alternative sample preparation techniques.

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