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Vol. 33 No. 7 (2021): Vol 33 Issue 7, 2021

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Ratiometric Sensing and Discrimination of Rutile and Anatase TiO2 Nanoparticles by a Quinoline-Benzimidazole Conjugate

https://doi.org/10.14233/ajchem.2021.23246
S. Suguna
Department of Applied Chemistry, Karunya Institute of Technology and Sciences (Deemed-to-be University), Karunya Nagar, Coimbatore- 641114, India
K. Velmurugan
College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, P.R. China
I. Sheebha
Department of Applied Physics, Karunya Institute of Technology and Sciences (Deemed-to-be University), Karunya Nagar, Coimbatore- 641114, India
C. Immanuel David
Department of Applied Chemistry, Karunya Institute of Technology and Sciences (Deemed-to-be University), Karunya Nagar, Coimbatore- 641114, India
B. Vidhya
Department of Applied Physics, Karunya Institute of Technology and Sciences (Deemed-to-be University), Karunya Nagar, Coimbatore- 641114, India
J. Prabhu
Department of Applied Chemistry, Karunya Institute of Technology and Sciences (Deemed-to-be University), Karunya Nagar, Coimbatore- 641114, India
R. Nandhakumar
Department of Applied Chemistry, Karunya Institute of Technology and Sciences (Deemed-to-be University), Karunya Nagar, Coimbatore- 641114, India

Corresponding Author(s) : B. Vidhya

vidhya@karunya.edu

Asian Journal of Chemistry, Vol. 33 No. 7 (2021): Vol 33 Issue 7, 2021

Abstract

A quinoline-benzimidazole conjugate 1 has been synthesized as a potential probe to discriminate the TiO2 anatase and rutile nanoparticles by fluorimetry. Probe 1 exhibits selective TiO2 sensing through a photoinduced electron transfer process (PET) and the ratiometric sensing response by intramolecular charge transfer (ICT) mechanism. The binding ratio and the association constants were also calculated. The limit of detection of TiO2 nanoparticles by probe 1 was upto micro molar concentrations.

Keywords

Chemosensor TiO2 Quinoline Benzimidazole Fluorescence Ratiometric
Suguna, S., Velmurugan, K., Sheebha, I., Immanuel David, C., Vidhya, B., Prabhu, J., & Nandhakumar, R. (2021). Ratiometric Sensing and Discrimination of Rutile and Anatase TiO2 Nanoparticles by a Quinoline-Benzimidazole Conjugate. Asian Journal of Chemistry, 33(7), 1631–1637. https://doi.org/10.14233/ajchem.2021.23246
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