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Efficient Catechol Sensing in Newly Synthesized 2D Material Ti2B MBene: Insights from Density Functional Theory
Gopal Sanyal1, Antara Vaidyanathan2, A T Sathya3
1Technology Transfer & Collaboration Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
Ti2B MBene shows promise for detecting catechol (CC), a toxic industrial chemical. Computational studies reveal strong interactions and high sensitivity, suggesting its potential for developing effective CC sensors.
Area of Science:
- Materials Science
- Computational Chemistry
- Environmental Science
Background:
- Catechol (CC) is a toxic industrial chemical posing health risks.
- Efficient and precise detection methods for CC are crucial.
- MBenes, boron analogues of MXenes, are emerging materials for sensing applications.
Purpose of the Study:
- To computationally assess the performance of Ti2B MBene for catechol detection.
- To investigate the interaction mechanisms and sensitivity of Ti2B to CC.
- To evaluate the stability and practical feasibility of Ti2B-based CC sensors.
Main Methods:
- Density Functional Theory (DFT) based computational investigations.
- Adsorption energy, charge transfer, and orbital analyses.
- Ab initio molecular dynamics simulations for stability assessment.
Main Results:
- Ti2B exhibits a reasonable adsorption energy (-2.15 eV) for CC in water.
- Significant charge transfer (0.462e) occurs between Ti2B and CC.
- A notable work function change (0.304 eV) indicates high sensitivity.
- NCI-RDG analysis confirms strong Ti-C interactions.
- Ab initio molecular dynamics simulations demonstrate Ti2B stability.
Conclusions:
- Ti2B is an efficient and promising material for catechol detection.
- The strong interaction and high sensitivity make Ti2B suitable for sensor development.
- This study provides a foundation for experimental fabrication of Ti2B-based CC sensors.
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