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Title: Synthesis of Catalytic Nanoporous Metallic Thin Films on Polymer Membranes.

Authors: Detisch, Michael J; Balk, T John; Bhattacharyya, Dibakar

Published In Ind Eng Chem Res, (2018 Mar 28)

Abstract: Composite membranes were produced with a metallic thin film forming the upper layer of the composite on a porous polymer support. Commercially available membranes were used as supports with both micron and nanometer scale pores. Alloy films of ~110 nm thickness were deposited via magnetron sputtering to produce the top layer of the composite. Dealloying the film with sulfuric acid allowed the creation of a nanoporous film structure with a ligament size of 7.7 ± 2.5 nm. Resulting composite membranes were permeable to water at all stages of production, and a UF PSf membrane with 90 nm of nanoporous Fe/Pd on top showed a flux of 183 LHM/bar. The films were evaluated for dechlorination of toxic polychlorinated biphenyls from water. At a loading of 6.6 mg/L of Pd attached to 13.2 cm2 support in a 2.5 ppm PCB-1 solution with 1.5 ppm dissolved H2, over 90% of PCB-1 was removed from solution in 30 minutes, which produced the expected product biphenyl from the dechlorination reaction.

PubMed ID: 30718940 Exiting the NIEHS site

MeSH Terms: No MeSH terms associated with this publication

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