<div class="csl-bib-body">
<div class="csl-entry">Frank, F., Baumgartner, B., & Lendl, B. (2022, April 12). <i>Swipe and wipe: The next generation phosphate sensing platform based on NH2-MIL-88B(Fe) and mid-infrared attenuated total reflection spectroscopy</i> [Poster Presentation]. Spring SciX 2022, Liverpool, United Kingdom of Great Britain and Northern Ireland (the).</div>
</div>
-
dc.identifier.uri
http://hdl.handle.net/20.500.12708/139178
-
dc.description.abstract
The excess use of phosphates in agriculture and industry as well as in households led to an accumulation of nutrients in aquatic ecosystems around the world. Increased phosphate concentrations in freshwater among other factors induces the eutrophication of lakes and rivers, resulting in a severe loss in biodiversity. Thus, the detection of traces of phosphates in water is a topic of great importance. Mid-infrared (IR) techniques have proven in the past to be potent in the surveillance of water streams. However, strong water absorption in the region of the phosphate bands between 900 and 1200 cm-1 impede the use of long interaction lengths, thereby limiting the sensitivity which is needed for trace analysis.
Here, the versatility and defined porosity of the novel material class of metal-organic frameworks (MOFs) come into play by selectively enriching phosphate from the aqueous phase into the probed volume of evanescent field spectroscopy. Using this technique, we present a mid-IR based sensing platform, capable of the detection of sub-ppm traces of phosphate in water without the need of sample preparation. We opted for a concept of easy applicable and removable single-use sensing layers on attenuated total reflection (ATR) prisms to overcome the struggle of desorbing chemisorbed phosphates, while still guaranteeing robust results. For that, a facile, reproducible workflow for the preparation of thin NH2-MIL-88B(Fe) layers onto the ATR substrates was developed. A standardised sampling procedure for the aqueous sample phosphate solutions was established, while internal referencing allowed for stable results regardless of the applied MOF layer.
en
dc.description.sponsorship
European Commission
-
dc.language.iso
en
-
dc.subject
Vibrational spectroscopy
en
dc.subject
Functional Materials
en
dc.subject
Sensing
en
dc.subject
Metal-organic frameworks
en
dc.title
Swipe and wipe: The next generation phosphate sensing platform based on NH2-MIL-88B(Fe) and mid-infrared attenuated total reflection spectroscopy
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.relation.grantno
871529
-
dc.type.category
Poster Presentation
-
tuw.project.title
Photonics sensing platform for process optimisation in the oil industry
-
tuw.researchinfrastructure
Röntgenzentrum
-
tuw.researchTopic.id
M7
-
tuw.researchTopic.id
M2
-
tuw.researchTopic.id
Q1
-
tuw.researchTopic.name
Special and Engineering Materials
-
tuw.researchTopic.name
Materials Characterization
-
tuw.researchTopic.name
Photonics
-
tuw.researchTopic.value
30
-
tuw.researchTopic.value
20
-
tuw.researchTopic.value
50
-
tuw.publication.orgunit
E164-02-1 - Forschungsgruppe Prozessanalytik
-
tuw.author.orcid
0000-0002-9136-6811
-
tuw.author.orcid
0000-0003-3838-5842
-
tuw.event.name
Spring SciX 2022
en
tuw.event.startdate
11-04-2022
-
tuw.event.enddate
13-04-2022
-
tuw.event.online
On Site
-
tuw.event.type
Event for scientific audience
-
tuw.event.place
Liverpool
-
tuw.event.country
GB
-
tuw.event.presenter
Frank, Felix
-
wb.sciencebranch
Chemie
-
wb.sciencebranch.oefos
1040
-
wb.sciencebranch.value
100
-
item.languageiso639-1
en
-
item.openairetype
conference poster not in proceedings
-
item.grantfulltext
restricted
-
item.fulltext
no Fulltext
-
item.cerifentitytype
Publications
-
item.openairecristype
http://purl.org/coar/resource_type/c_18co
-
crisitem.author.dept
E164-02-1 - Forschungsgruppe Prozessanalytik
-
crisitem.author.dept
E164-02-1 - Forschungsgruppe Prozessanalytik
-
crisitem.author.dept
E164-02 - Forschungsbereich Umwelt-, Prozessanalytik und Sensoren
-
crisitem.author.orcid
0000-0002-7584-5812
-
crisitem.author.orcid
0000-0002-9136-6811
-
crisitem.author.orcid
0000-0003-3838-5842
-
crisitem.author.parentorg
E164-02 - Forschungsbereich Umwelt-, Prozessanalytik und Sensoren
-
crisitem.author.parentorg
E164-02 - Forschungsbereich Umwelt-, Prozessanalytik und Sensoren
-
crisitem.author.parentorg
E164 - Institut für Chemische Technologien und Analytik
