JAYAPRAKASH J

Scopus Publications

Visible light-driven Nd-ZnSe: Structural insights and enhanced photocatalytic degradation of Congo red dye
Kavitha P, Menaka R, Jayaprakash J, Nijarubini V, Priyadharsini N
Applied Physics A Materials Science and Processing, 2025
Preparation of Cr-modified SnO2 nanoparticles through hydrothermal method for enhanced methane sensing performance
Jayaprakash Jeyaram, A. Vengadesan, C. Parthasaradhi Reddy, T. Sivasakthi, Vasudeva Reddy Minnam Reddy, Woo Kyoung Kim, Mohamed A. Habila
Journal of Materials Science Materials in Electronics, 2025
Facile synthesis of rGO-Ag and rGO-Au nanocomposites and their applications in biosensors and enhanced photocatalytic properties
P. Rajkumar, V. Velmurugan, R. Kumutha, J. Jayaprakash, A. Raja, Misook Kang, Nouf H. Alotaibi
Physica B Condensed Matter, 2025
Physicochemical and photocatalytic properties of Ag2CrO4/Fe2O3/CeO2 ternary nanocomposite
Mahendran Ananthkumar, Jeyaram Jayaprakash, Abhijit Debnath, Mohammed F. Albeshr, Raja Mythili, Pachaimuthu Akilan, Alagesan Kannan, Shanmugam Vignesh, Venkatachalam Chandrasekaran
Luminescence, 2024
The study presents Ag2CrO4/Fe2O3/CeO2 ternary nanocomposite, based on Fe2O3/CeO2 binary composites, which demonstrated excellent photocatalytic performance in the photodegradation of methylene blue under solar irradiation. The Ag2CrO4/Fe2O3/CeO2 nanocomposites was orthorhombic, ilmenite, and cubic‐fluorite phases of Ag2CrO4, Fe2O3, and CeO2, respectively, according to the XRD examination. A strong bond between Ag2CrO4, Fe2O3, and CeO2 within the nanocomposite was demonstrated by the SEM and TEM investigations. Moreover, it was discovered that the coupling of Ag2CrO4 and Fe2O3 caused a red shift and moved CeO2 absorption edge from the UV to the visible spectrum. The reason behind this is that the band gap of CeO2 reduced 2.85 to 2.69 eV and the absorbance band intensity increased in visible region. Utilizing visible light, Ag2CrO4/Fe2O3/CeO2 ternary nanocomposites exhibit enhanced photocatalytic properties (98.90%) for the degradation of methylene blue (MB) within 100 min. The long‐term reliability and recyclability of the photocatalyst were explored through 3 successive cycles. An active radical quenching test was conducted to elucidate the involvement of O2− and OH which are the primary reactive species in the photocatalytic breakdown of MB. Ag2CrO4/Fe2O3/CeO2 ternary nanocomposites displayed notable improvements in photodegradation activity, making them well suited for the effective removal of hazardous dyes present in textile effluents.
Synthesis, structural analysis, spectroscopic characterization and second order hyperpolarizability of 2-amino-4-methylpyridiniium-4-hydroxybenzolate crystal
C. Vidya, J. Jayaprakash, I. Ragavan, S. Shanavas, A. Priyadharsan, R. Acevedo, P. M. Anbarasan
Journal of Materials Science Materials in Electronics, 2019
Visible light photocatalytic activity of tungsten and fluorine codoped TiO2 nanoparticle for an efficient dye degradation
Boobas Singaram, Jayaprakash Jeyaram, Ranjith Rajendran, Priyadharsan Arumugam, Krishnakumar Varadharajan
Ionics, 2019
Synthesis and optical characterization of cerium doped MgWO4 phosphor
J. Jayaprakash, V. Krishnakumar
Materials Today Proceedings, 2019
An Efficient Photocatalytic and Antibacterial Performance of Ni/Ce–Codoped CdS Nanostructure under Visible Light Irradiation
Rajendran Ranjith, Varadharajan Krishnakumar, Singaram Boobas, Jayaraman Venkatesan, Jeyaram Jayaprakash
Chemistryselect, 2018
Abstract In the present work, the Ni/Ce‐codoped CdS Nanoparticles (NPs) were synthesized through a hydrothermal method. The phase structure, chemical state, chemical composition, morphology and optical properties of prepared samples were characterized using X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS), Energy Dispersive X‐Ray Analysis (EDX), Fourier transform infrared spectroscopy (FT‐IR), High‐resolution transmission electron microscopy (HRTEM), UV‐Vis diffuse reflectance spectroscopy (DRS), Photoluminescence (PL) spectroscopy studies and their photocatalytic activities of Rhodamine B (RhB) degradation were studied under visible light irradiation. The Ni and Ce doped CdS NPs showed higher photocatalytic activity compared to that of pure CdS, and the activity was further enhanced by codoping of Ni and Ce into CdS. The enhancement of photocatalytic activity is due to the synergistic effect of Ni and Ce ions and with a narrowed bandgap, which may facilitate inhabitation of the photogenerated charge carrier recombination. Meanwhile, the possible photocatalytic mechanism of Ni and Ce codoped CdS was proposed on the basis of trapping experiments. Additionally, the antibacterial activity of Ni/Ce codoped CdS NPs was evaluated against E. coli and S. aureus .
Growth and characterization of organic second order nonlinear optical (NLO) 4-chloroanilinium-L-tartrate monohydrate single crystals
Jayaprakash Jeyaram, Krishnakumar Varadharajan, Boobas Singaram, Ranjith Rajendhran
Journal of Crystal Growth, 2018
Photocatalytic degradation of metronidazole and methylene blue by PVA-assisted Bi2WO6-CdS nanocomposite film under visible light irradiation
Ranjith Rajendran, Krishnakumar Varadharajan, Venkatesan Jayaraman, Boobas Singaram, Jayaprakash Jeyaram
Applied Nanoscience Switzerland, 2018
The enhanced photocatalytic performance of nanocomposite is synthesized via the hydrothermal method and characterized using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FESEM), Fourier transform infrared spectroscopy (FT-IR), UV–visible diffuse reflectance spectroscopy (UV–Vis DRS) and photoluminescence spectroscopy (PL). Under visible light irradiation, PVA assisted Bi2WO6–CdS nanocomposite film displayed enhanced photocatalytic efficiency and inhibition of photocorrosion as compared with pure CdS, pure Bi2WO6 and Bi2WO6–CdS composite. The PVA assisted Bi2WO6–CdS composite film catalyst showed stable catalytic performance until seven successive runs with 92% of methylene blue(MB) degradation, and easy to recover after degradation of organic pollutant. PVA assisted Bi2WO6–CdS nanocomposite film has optimal band edge position for superior photocatalytic degradation. Furthermore, the trapping experiment was carried out using different scavenger for active species. Among the active species, OH· are the most responsive species which play a vital role in the degradation of metronidazole and MB.
Optical, photoconducting, thermal and anisotropic mechanical behaviours of Benzimidazolium salicylate single crystals
Jayaprakash Jeyaram, Krishnakumar Varadharajan, Boobas Singaram, Ranjith Rajendhran
Journal of Science Advanced Materials and Devices, 2017
Preparation of cerium and sulfur codoped TiO2 nanoparticles based photocatalytic activity with enhanced visible light
Boobas Singaram, Krishnakumar Varadharajan, Jayaprakash Jeyaram, Ranjith Rajendran, Vijayan Jayavel
Journal of Photochemistry and Photobiology A Chemistry, 2017
Enhancement of photocatalytic degradation of methylene blue under visible light using transparent Mg-doped CdS–PVA nanocomposite films
Varadharajan Krishnakumar, Rajendran Ranjith, Jeyaram Jayaprakash, Singaram Boobas, Jayaraman Venkatesan
Journal of Materials Science Materials in Electronics, 2017
Photoconductivity, dielectric, thermal and mechanical studies on nonlinear optical phasematchable single crystal: 2-amino-4-methylpyridinium 4-nitrobenzoate
Varadharajan Krishnakumar, Jeyaram Jayaprakash, Singaram Boobas
Journal of Materials Science Materials in Electronics, 2017
Synthesis, growth, optical and anisotropic mechanical behaviour of organic nonlinear optical imidazolium 2-chloro-4-nitrobenzoate single crystals
Varadharajan Krishnakumar, Jeyaram Jayaprakash, Singaram Boobas, Muniraj Komathi
European Physical Journal Plus, 2016
Enhanced Visible Light Photocatalytic Activity of Ag and Zn Doped and Codoped TiO2Nanoparticles
Krishnakumar Varadharajan, Boobas Singaram, Rajaboopathi Mani, Jayaprakash Jeyaram
Journal of Cluster Science, 2016
Effect of Cu doping on TiO2 nanoparticles and its photocatalytic activity under visible light
Varadharajan Krishnakumar, Singaram Boobas, Jeyaram Jayaprakash, Mani Rajaboopathi, Bing Han, Marjatta Louhi-Kultanen
Journal of Materials Science Materials in Electronics, 2016