Multifunctional La10Si6O27:Tb3+ tailored material for photoluminescence, photocatalysis and electrochemical sensing applications

Kumar, Anand; Naik, Ramachandra; Revathi, V.; Murthy, H.C. Ananda; Nagaswarupa, H.P.; Ravikumar, C.R.; Reddy, G.V. Ashok; Pothu, Ramyakrishna; Boddula, Rajender; Lokesh, H.B.; Shanbhag, Vijaya V.

doi:10.1016/j.apsadv.2023.100392

Cited by 8 publications

(2 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Paracetamol is an electrochemically active molecule that has been broadly tested in various samples. Several papers have been published on the electroanalytical determination of paracetamol depending on its oxidation behaviour with electrodes such as modifed glassy carbon electrodes, graphite electrodes, and gold electrodes [50][51][52][53][54]. Electrochemical techniques are versatile analytical techniques that can solve the problems of pharmaceutical interest.…”

Section: Resultsmentioning

confidence: 99%

Green-Synthesized Sm3+-Doped ZnO Nanoparticles for Multifunctional Applications

R.,

T.,

K. M.

et al. 2024

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

The present study focuses on the green-mediated synthesis of pristine and Sm3+-doped ZnO nanoparticles using Syzygium cumini fruit extract. The prepared material was characterized by various characterization techniques. Photocatalytic degradation of a fast orange red (FOR) dye under UV light resulted in 88% degradation, with a minimal decrease (87.90%) observed even after five successive runs, indicating the stability and effectiveness of the catalyst. The enhancement in degradation efficiency is attributed to the incorporation of Sm3+ ions into the ZnO lattice. Utilizing the optimized Sm3+ (5 mol%)-doped ZnO nanoparticles, cyclic voltammetry (CV) and electrochemical impedance spectra (EIS) were performed on the prepared electrode, demonstrating the excellent CV properties; this enhancement is attributed to the modification of ZnO’s redox chemistry and the alteration of charge transfer kinetics at the electrode-electrolyte interface due to the addition of Sm3+ into the ZnO structure. The antibacterial activity was performed against two pathogenic strains, i.e., Escherichia coli and Streptococcus aureus. The obtained results suggest that the prepared material holds great promise for catalytic, energy storage, antibacterial, and other multifunctional applications.

show abstract

Section: Resultsmentioning

confidence: 99%

Green-Synthesized Sm3+-Doped ZnO Nanoparticles for Multifunctional Applications

R.,

T.,

K. M.

et al. 2024

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

show abstract

“…The obtained PXRD peaks show 2θ values of 19.74 • , 25.92 • , 27.09 • , 27.5 • , 33.4 • , 35.2 • ,37.0, 46.45 • , 52.57 • , 54.9 • are correlated to monoclinic α-Bi 2 O 3 (020), (002), ( 111), (120), ( 200), ( 212), ( 121), (041), (−321), (−241) highly matched with the monoclinic structure and in accordance with JCPDS card number. 71-2274 lattice planes [43]. The lattice parameters for the monoclinic structure of α-BONPs were found to be 5:8499A • , 8:1698 A • , 7:5123 A • for a, b c respectively.…”

Section: Pxrd Analysismentioning

confidence: 89%

Facile Green Synthesis of α-Bismuth Oxide Nanoparticles: Its Photocatalytic and Electrochemical Sensing of Glucose and Uric Acid in an Acidic Medium

Alam,

Allag,

Utami

et al. 2024

J. Compos. Sci.

View full text Add to dashboard Cite

The nanocrystalline bismuth oxide (Bi2O3) was produced utilizing a green combustion process with Mexican Mint gel as the fuel. The powder X-ray diffraction (PXRD) method proved the nanocrystalline nature and Bi2O3 nanoparticles (BONPs) in α phase and the average crystalline size of BONPs nanoparticles has been found to be 60 nm. The spherical-shaped structure with bright dot-like spots in the center of the selected area diffraction (SAED) is confirmed by the scanning electron microscopy (SEM) and Energy dispersive X-ray spectroscopy (EDAX) in conjunction with the transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HRTEM) demonstrating the crystalline behavior of green NPs. The Kubelka-Monk function was used to analyze diffuse reflectance spectra, and the results revealed that BONPs have a band gap of 3.07 eV. When utilized to evaluate the photocatalytic capabilities of NPs, the direct green (DG) and fast orange red (F-OR) dyes were found to be activated at 618 and 503 nm, respectively. After 120 min of exposure to UV radiation, the DG and F-OR dyes’ photodegradation rate reduced its hue by up to 88.2% and 94%, respectively. Cyclic voltammetry (CV) and electrochemical impedance techniques in 0.1 N HCl were used to efficiently analyze the electrochemical behavior of the produced BONPs. A carbon paste electrode that had been enhanced with BONPs was used to detect the glucose and uric acid in a 0.1 N HCl solution. The results of the cyclic voltammetry point to the excellent electrochemical qualities of BONPs. Bi2O3 electrode material was found to have a proton diffusion coefficient of 1.039 × 10−5 cm2s−1. BONP exhibits significant potential as an electrode material for sensing chemicals like glucose and uric acid, according to the electrochemical behavior.

show abstract