La10Si6O27:Eu3+ Nanophosphor: Its Photocatalytic and Sensor Applications

A. Naveen Kumar1,, N. Basavaraju2,, C.R. Ravikumar2,*,, V.G. Dileepkumar3,4,, R. Ramesh5, and H.C. Ananda Murthy6,*,

1Department of Physics, South East Asian College of Engineering and Technology (Affiliated to Visvesvaraya Technological University), Bangalore-560049, India

2Department of Science, East West Institute of Technology (Affiliated to Visvesvaraya Technological University), Bangalore-560091, India

3Department of Chemistry, HKBK College of Engineering Bangalore-560045, India

4Department of Chemistry, PES University, BSK 3rd Stage, Bangalore-560085, India

5Department of Chemical Engineering, School of Mechanical, Chemical and Materials Engineering, Adama Science and Technology University, P.O. Box 1888, Adama, Ethiopia

6Department of Physical and Chemical Sciences, School of Science, Sri Sathya Sai University for Human Excellence, Sri Sathya Sai Grama, Chikkaballapur-562101, Karnataka, India

*Corresponding author: E-mail:


This study reported the influence of La10Si6O27:Eu3+ nanophosphor prepared by solution combustion method by using oxalyl dihydrazide as fuel on the electrochemical performance in HCl used as an electrolyte. The structural morphology of the nanoparticles was characterized by PXRD, it confirms pure hexagonal oxyapatite phase with the crystallite size averaging between 20-30 nm. To examine the electrochemical behaviour of the nanophosphor in an acidic medium, both electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) techniques were utilized. For the electrochemical analysis used in this study, a modified carbon paste electrode (CPE) with the nanophosphor was utilized as the working electrode, which is an excellent sense of the paracetamol and sildenafil citrate (viagra). Further, the synthesized La10Si6O27:Eu3+ nanophosphor exhibited improved photocatalytic mobility (PCM) and enhanced photostability when exposed to UV light during the decomposition process of direct green dye. These findings suggest that the developed material holds great promise as a potential sensor and photocatalyst.


Nanophosphor, Photocatalytic activity, Carbon paste electrode, Direct green dye, Sensor.

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