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AuthorShabil Sha, Mizaj
AuthorMaurya, Muni Raj
AuthorGeetha, Mithra
AuthorKumar, Bijandra
AuthorAbdullah, Aboubakr M.
AuthorSadasivuni, Kishor Kumar
Available date2022-03-23T06:35:43Z
Publication Date2022
Publication NameSensors
ResourceScopus
Identifierhttp://dx.doi.org/10.3390/s22020618
CitationSha MS, Maurya MR, Geetha M, Kumar B, Abdullah AM, Sadasivuni KK. A Smart Colorimetric Platform for Detection of Methanol, Ethanol and Formic Acid. Sensors. 2022; 22(2):618. https://doi.org/10.3390/s22020618
URIhttp://hdl.handle.net/10576/28541
AbstractCarbon dioxide (CO2 ) is a greenhouse gas in the atmosphere and scientists are working on converting it to useful products, thereby reducing its quantity in the atmosphere. For converting CO2, different approaches are used, and among them, electrochemistry is found to be the most common and more efficient technique. Current methods for detecting the products of electrochemical CO2 conversion are time-consuming and complex. To combat this, a simple, cost-effective colorimetric method has been developed to detect methanol, ethanol, and formic acid, which are formed electrochemically from CO2 . In the present work, the highly efficient sensitive dyes were successfully established to detect these three compounds under optimized conditions. These dyes demonstrated excellent selectivity and showed no cross-reaction with other products generated in the CO2 conversion system. In the analysis using these three compounds, this strategy shows good specificity and limit of detection (LOD, ~0.03-0.06 ppm). A cost-effective and sensitive Internet of Things (IoT) colorimetric sensor prototype was developed to implement these dyes systems for practical and real-time application. Employing the dyes as sensing elements, the prototype exhibits unique red, green, and blue (RGB) values upon exposure to test solutions with a short response time of 2 s. Detection of these compounds via this new approach has been proven effective by comparing them with nuclear magnetic resonance (NMR). This novel approach can replace heavy-duty instruments such as high-pressure liquid chromatography (HPLC), gas chromatography (G.C.), and NMR due to its extraordinary selectivity and rapidity.
SponsorFunding: This research was funded by Qatar National Research Fund (a member of the Qatar Foundation) grant number NPRP11S-1221-170116 and the APC was funded by Qatar National Research Fund.
Languageen
PublisherMDPI
SubjectCarbon dioxide
Electrochemical conversion
Ethanol
Formic acid
Methanol
TitleA Smart Colorimetric Platform for Detection of Methanol, Ethanol and Formic Acid
TypeArticle
Issue Number2
Volume Number22
dc.accessType Open Access


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