1. Self-assembly and activation of a titania-nanotube based photocatalyst for H2 evolution
- Author
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Patrik Schmuki, Fan Fu, Gihoon Cha, and Zhenni Wu
- Subjects
Nanotube ,Materials science ,Aqueous solution ,business.industry ,Functional features ,Metals and Alloys ,Nanotechnology ,General Chemistry ,Catalysis ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,Amorphous solid ,Semiconductor ,Materials Chemistry ,Ceramics and Composites ,Photocatalysis ,Self-assembly ,Extended time ,business - Abstract
Constructing an efficient photocatalyst for H2 production generally requires the integration of several functional features in and on a semiconductor platform. This is conventionally done by a classic step-by-step synthesis. Here, we report the self-assembly of an amorphous titania nanotube based system when illuminated for extended time in suitable aqueous solutions. Over time, not only photodeposition of a co-catalyst can take place, but also in situ crystallization and morphology changes occur that can provide a higher H2 production than observed for a classically assembled photocatalyst.
- Published
- 2021
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