publication . Other literature type . Article . 2020

Mesoporous silica films for sensing volatile organic compounds using attenuated total reflection spectroscopy

Bettina Baumgartner; Jakob Hayden; Bernhard Lendl;
  • Published: 01 Jan 2020
  • Publisher: Elsevier BV
  • Country: Austria
Abstract
Abstract Sensitivity of evanescent wave sensing of gaseous species can be vastly increased by enrichment materials that locally concentrate the analyte on the sensor. Here, we investigate functionalized mesoporous silica films as versatile enrichment layer for sensing volatile organic compounds (VOCs) from gas-phase. Attenuated total reflection (ATR) crystals were coated with silica films of different pore sizes and their capability to enrich three different aromatic hydrocarbons from a vapor stream was studied by means of Fourier Transform infrared (FTIR) spectroscopy. Thereby, single-digit ppmv limits of detection (LOD) were achieved with an effective path len...
Subjects
free text keywords: Mid-IR spectroscopy, Mesoporous materials, Sensing, Volatile organic compounds, Functional coating, Mid-IR Spectroscopy, Mesoporous Materials, Sensing, Volatile Organic Compounds, Functional Coating, Instrumentation, Electrical and Electronic Engineering, Materials Chemistry, Electronic, Optical and Magnetic Materials, Surfaces, Coatings and Films, Condensed Matter Physics, Metals and Alloys, Chemistry, Detection limit, Fourier transform infrared spectroscopy, Surface modification, Spectroscopy, Attenuated total reflection, Water vapor, Toluene, chemistry.chemical_compound, Analytical chemistry, Mesoporous silica
Related Organizations
Funded by
EC| AQUARIUS
Project
AQUARIUS
BROADBAND TUNABLE QCL BASED SENSOR FOR ONLINE AND INLINE DETECTION OF CONTAMINANTS IN WATER
  • Funder: European Commission (EC)
  • Project Code: 731465
  • Funding stream: H2020 | RIA
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