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A new type of microphotoreactor with integrated optofluidic waveguide based on solid-air nanoporous aerogels
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SYSNO ASEP 0497603 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title A new type of microphotoreactor with integrated optofluidic waveguide based on solid-air nanoporous aerogels Author(s) Őzbakir, Y. (TR)
Jonáš, Alexandr (UPT-D) RID, SAI, ORCID
Kiraz, A. (TR)
Erkey, C. (TR)Number of authors 4 Article number 180802 Source Title Royal Society Open Science. - : Royal Society Publishing - ISSN 2054-5703
Roč. 5, č. 11 (2018)Number of pages 15 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords microphotoreactors ; photochemistry ; aerogels ; nanostructured materials ; optofluidic waveguides Subject RIV BH - Optics, Masers, Lasers OECD category Chemical process engineering Institutional support UPT-D - RVO:68081731 UT WOS 000451777500012 EID SCOPUS 85058403479 DOI 10.1098/rsos.180802 Annotation In this study, we developed a new type of microphotoreactor based on an optofluidic waveguide with aqueous liquid core fabricated inside a nanoporous aerogel. To this end, we synthesized a hydrophobic silica aerogel monolith with a density of 0.22 g cm(-3) and a low refractive index of 1.06 that-from the optical point of view-effectively behaves like solid air. Subsequently, we drilled an L-shaped channel within the monolith that confined both the aqueous core liquid and the guided light, the latter property arising due to total internal reflection of light from the liquid-aerogel interface. We characterized the efficiency of light guiding in liquid-filled channel and-using the light delivered by waveguiding-we carried out photochemical reactions in the channel filled with aqueous solutions of methylene blue dye. We demonstrated that methylene blue could be efficiently degraded in the optofluidic photoreactor, with conversion increasing with increasing power of the incident light. The presented optofluidic microphotoreactor represents a versatile platform employing light guiding concept of conventional optical fibres for performing photochemical reactions. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2019
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