A new type of microphotoreactor with integrated optofluidic waveguide based on solid-air nanoporous aerogels

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F18%3A00497603" target="_blank" >RIV/68081731:_____/18:00497603 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1098/rsos.180802" target="_blank" >http://dx.doi.org/10.1098/rsos.180802</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1098/rsos.180802" target="_blank" >10.1098/rsos.180802</a>

Result language

angličtina

Original language name

A new type of microphotoreactor with integrated optofluidic waveguide based on solid-air nanoporous aerogels

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20402 - Chemical process engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Royal Society Open Science

ISSN

2054-5703

e-ISSN

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Volume of the periodical

5

Issue of the periodical within the volume

11

Country of publishing house

GB - UNITED KINGDOM

Number of pages

15

Pages from-to

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UT code for WoS article

000451777500012

EID of the result in the Scopus database

2-s2.0-85058403479