Preparation and Characterisation of VS₄-PANI Composites for Fluorescent Metal Ions Sensing Applications

ABSTRACT

Vanadium sulphide (VS₄) nanosheets were synthesized by the hydrothermal method. The Polyaniline (PANI) and the VS₄-PANI (PMCs) were synthesized by the in-situ polymerization method. The structural parameters were calculated from the PXRD pattern. The HR-SEM was used to record the surface morphology, which shows the interface between the VS₄ and Polyaniline matrix. The absorption spectra and tauc plot were used to determine the optical band gap. To study the molecular interactions the Raman spectra was used. The synthesized materials were utilized to detect the presence of the metal ions such as Au³⁺ and Fe³⁺ (quenching) was using PL spectroscopy.

KEYWORDS:

• and Turn-on sensor
• Fluorescent sensors
• metal sulfide
• Polymer nanocomposites
• VS₄-PANI

Acknowledgments

The authors are thankful to the management of SRM institute of Science and Technology for the support and motivation. The authors acknowledge Dr.C.Selvaraju Director i/c and Dr. Kaviyarasan Raji National Centre for Ultrafast Processes, University of Madras, Taramani Campus for providing the facilities. We acknowledge Nanotechnology Research Centre (NRC), SRMIST for providing the research facilities

Disclosure statement

No potential conflict of interest was reported by the author(s).

Credit author statement

Jeevagan K: Conceptualization, Data curation, Writing – original draft, Writing – review & editing. Ezhilselvi V: Data curation. K. Jagannathan: Project administration, Supervision, Validation, Visualization.

Research Data Policy and Data Availability Statements

Data availability statement

The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request

Additional information

Funding

The authors declare that no funds, grants, or other support were received during the preparation of this manuscript.

Notes on contributors

K Jeevagan

Jeevagan K obtained his M.Sc. from The New College (Autonomous) Chennai, affiliated to University of Madras, and his pursuing Ph.D. in SRM Institute of Science and Technology Vadapalani campus, Chennai, Tamilnadu, India. His working area of research in conducting polymer composites with transition metal chalcogenides. He published two research articles in international journals. And he also presented his research findings at 15 national and international conferences.

V Ezhilselvi

Ezhilselvi V is a Principal Scientist & Associate Professor (AcSIR) Chemical & Food Indian Reference Materials Division CSIR-National Physical Laboratory, New delhi, India. She published 21 Research articles in international Journals, and 2 book chapters. Her area of research in Water Purification by adsorption method, Geopolymer binder, Coatings Development, Chemical Meteorology, and Sustainable green building materials.

K Jagannathan

Jagannathan K is an assistant professor of Physics and HoD in Department of Physics in SRM Institute of Science and Technology Vadapalani campus, Chennai, Tamilnadu, India. He published 34 research articles in international journals in various fields of materials science. Currently he guiding 4 research scholars also he produced 2 Ph.D. graduates. His area of research includes conducting Polymer matrix composites, metal oxides, with transition metal chalcogenides, Graphene oxide nanocomposites, DSSC, sensors, supercapacitors and crystal growth.