Preparation and morphology-dependent wettability of porous alumina membranes

This article presents the preparation and study of the wetting properties of porous alumina membranes (PAMs) with a thickness of 25 to 75 μm and with a different pore sizes. The fabrication process features, scanning electron microscopy and atomic force microscopy characterization results are presen...

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Bibliographic Details
Published in:Beilstein journal of nanotechnology 2018, Vol.9 (1), p.1423-1436
Main Authors: Shimanovich, Dmitry L, Vorobjova, Alla I, Tishkevich, Daria I, Trukhanov, Alex V, Zdorovets, Maxim V, Kozlovskiy, Artem L
Format: Article
Language:English
Subjects:
Alumina
Aluminum oxide
Atomic force microscopy
Composite materials
Contact angle
Electrolytes
Full Research Paper
interfacial contact angle
Investigations
Membranes
Morphology
Nanoscience
Nanotechnology
Plasma etching
Polymers
porous anodic alumina
Scanning electron microscopy
Wettability
Wetting
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Summary:This article presents the preparation and study of the wetting properties of porous alumina membranes (PAMs) with a thickness of 25 to 75 μm and with a different pore sizes. The fabrication process features, scanning electron microscopy and atomic force microscopy characterization results are presented. The comparative analysis of PAM surfaces (outer and inner) and the effect of morphology of these surfaces on the wetting properties are discussed. Both alumina surfaces show significant morphology-dependent wettability. Measurements of the interfacial contact angle were made on the as-fabricated amorphous membrane and after pore widening with a range of pore diameters from 25 to 100 nm. The possible applications of PAMs for various membrane technologies is shown.
ISSN:2190-4286
2190-4286
DOI:10.3762/bjnano.9.135