Silver/alumina core/shell nanopatterned films for in-field detection of soil and water phosphorus using surface enhanced raman spectroscopy

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F21%3A00128824" target="_blank" >RIV/00216224:14310/21:00128824 - isvavai.cz</a>

Alternative codes found

RIV/62156489:43210/21:43921020

Result on the web

<a href="https://doi.org/10.37904/nanocon.2021.4338" target="_blank" >https://doi.org/10.37904/nanocon.2021.4338</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/nanocon.2021.4338" target="_blank" >10.37904/nanocon.2021.4338</a>

Result language

angličtina

Original language name

Silver/alumina core/shell nanopatterned films for in-field detection of soil and water phosphorus using surface enhanced raman spectroscopy

Original language description

In this paper, results of our running work on a sensitive and efficient detection of phosphates are presented. We develop a testing kit for rapid chemical detection based on surface-enhanced Raman scattering (SERS). We combine highly SERS active silver layer with a thin overlayer of alumina that is able to adsorb phosphorus compounds, in the form of silver/alumina core/shell nanopatterned film. In the first step, the silver layer was prepared by physical vapor deposition, followed by thermal annealing to form silver nanodots. Subsequently, alumina film was deposited over the silver nanodots using atomic layer deposition to form the silver/alumina core/shell nanopatterned surface. The prepared Ag/Al2O3 films can vary in overall thickness from 4 to 10 nm by changing the deposition parameters. The produced Ag/Al2O3 nanodots exhibit high SERS activity and significant adsorption of phosphate anions on these nanofilms has been confirmed under 532 nm excitation, which produced characteristic phosphate bands in the Raman spectra. The method will be further applied for quantitative detection of inorganic phosphates as well as organophosphates in real pond water samples.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

21002 - Nano-processes (applications on nano-scale); (biomaterials to be 2.9)

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

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

Article name in the collection

Proceedings 13th International Conference on Nanomaterials - Research & Application

ISBN

9788088365006

ISSN

2694-930X

e-ISSN

—

Number of pages

6

Pages from-to

197-202

Publisher name

TANGER Ltd.

Place of publication

Ostrava

Event location

Brno, Czech Republic

Event date

Oct 20, 2021

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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