Highly controlled coating of a biomimetic polymer in TiO2 nanotubes
Gabriel Loget, Jeung Eun Yoo, Anca Mazare, Lei Wang, Patrik Schmuki
TL;DR
This paper presents a method for precisely coating TiO2 nanotubes with biomimetic polydopamine, enhancing their photocatalytic properties and enabling further functionalization with co-catalysts and nanoparticles.
Contribution
It introduces a controlled coating technique for TiO2 nanotubes with biomimetic polymer, improving their photocatalytic performance and functionalization capabilities.
Findings
PDA coating enhances photocurrent and photodegradation under visible light
Coatings serve as platforms for decorating with co-catalysts and nanoparticles
Method allows for highly controlled and uniform polymer coatings
Abstract
Highly controlled coating of biomimetic polydopamine (PDA) was achieved on titanium dioxide nanotubes (TiO2 NTs) by exposing TiO2 NT arrays to a slightly alkaline dopamine solution. The thin films act as photonic sensitizers (enhancing photocurrents and photodegradation) in the visible light range. The PDA coatings can furthermore be used as a platform for decorating the TiO2 NTs with different co-catalysts and metal nanoparticles (NPs).
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