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Microporous TiO2 membranes with a cut off <500 Da by P. Puhlfürß; A. Voigt; R. Weber; M. Morbé is a Engineering article available to read on EtoBox.

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Microporous TiO 2 membranes were developed by a polymeric sol-gel technique on top of a specially designed tubular ceramic multi-layer support. The microporosity of the membrane is 28% and depends strongly on the amorphous state of the TiO 2 . N 2 -sorption measurements indicated cylindrical pores with a mean diameter of 0.9 nm which was confirmed by filtration tests using molecular weight standards. The membrane has a cut off of 480 Da and a pure water flux of 20 l/(m 2 h bar). Salt retention depends on the pH and the salt concentration. At a pH above 5.8, the retention of sulphate ions is more than 90%.

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Author

P. Puhlfürß; A. Voigt; R. Weber; M. Morbé

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0376-7388)

Published

2000

Language

EN

Field

Engineering (Physical Sciences)