Catalyst efficiency through the disorder kinetics to identify its nonlinearity in their properties of Ag3PO4@TiO2 catalyst using UV–visible spectroscopy DOI

Panjanathan Vinothkumar,

Thirumuruganantham Sivakumar,

Sukumar Praveenkumar

et al.

Zeitschrift für Physikalische Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 30, 2024

Abstract Photocatalysis has a significant role in water remediation. During the process of photocatalysis, catalysts face different problems, such as instability and inefficiency. Here, we are introducing new method, ‘nonlinearity kinetics’, which will help to identify this kind problem during photocatalytic activity. We considering Ag 3 PO 4 @TiO 2 study nonlinear disorder kinetics. is highly photoactive compound with an inherent photocorrossive nature. it addresses challenge pure by transforming composite materials studying its kinetics photocatalysis. The underwent preliminary characterisation. Increment crystalline nature studied through XRD. FESEM TEM analysed morphological alignment diffraction patterns. functional behaviour oxygen, Ag, Ti P–O–P were identified FT-IR spectra. reduced optical band gap was 2.9 eV Obtained from UV–visible activity performed, newly introduced observed. fit shows shift over time (intercept value linear −0.27) that indicates corrosive characteristics. For efficient catalyst, must be equivalent zero. demonstrates nonlinearity catalyst catalytic medium when does not fit. To disorder, important look at analysis.

Language: Английский

Experimental investigation of structural, morphological, and optical characteristics of SrTiO3 nanoparticles using a shock tube for photocatalytic applications DOI
Surendhar Sakthivel, P. Sivaprakash, P. Velusamy

et al.

Zeitschrift für Physikalische Chemie, Journal Year: 2024, Volume and Issue: 238(10), P. 1863 - 1885

Published: Feb. 8, 2024

Abstract We investigated the role of dynamic shock waves in perovskite SrTiO 3 (STO) material. XRD, FE-SEM, EDAX, FTIR, UV-DRS, XPS, and Raman spectroscopy were all used to examine title When sample was loaded with shocks, its diffraction pattern did not show any crystal structure changes. The FE-SEM results suggest that grain size increased linearly number shocks. energy-dispersive X-ray perform elemental analysis; confirmed NPs indeed present. Although impulse wave changed optical characteristics, it affect molecular structure. To find band gap energies untreated shocked NPs, Tauc plot relationships used. band-gap got smaller as pulse became more substantial. impact caused oxygen vacancies surface defects, lowering energy. test for photocatalytic testing showed are worked much better when they exposed visible light. including stress, strain, bond length, found significantly influence applications. In addition, attempts made provide a viewpoint future study. Overall, objective this research valuable insights experts engaged field .

Language: Английский

Citations

11
Highly efficient tin oxide and polyaniline-tin-oxide nanostructured materials for photocatalytic degradation of organic dyes DOI
Aqeela Kanwal,

Misbah ur Rehman,

Rabia Sattar

et al.

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1312, P. 138454 - 138454

Published: April 28, 2024

Language: Английский

Citations

11
Effective dye detoxification by Cassia fistula flower extract- powered photocatalytic nanocomposite, SnO2:Mo/rGO and phytotoxicity evaluation of treated water using cowpea seeds DOI

M. Varshini,

K. Ravichandran,

Muniappan Ayyanar

et al.

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(5), P. 113270 - 113270

Published: June 5, 2024

Language: Английский

Citations

11
Preparation of fluorinated zirconia doped with tin oxide nanocomposites for photocatalytic degradation of organic dyes in contaminated water bodies DOI

Vanasundari Karuppaiya,

Viji Arangarajan,

Vijayakumar Rajendran

et al.

Zeitschrift für Physikalische Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: Feb. 29, 2024

Abstract In this study, a novel SnO 2 –Zr–F nanostructured composite was successfully synthesized through mild chemical reaction. The crystalline nature of the characterized using XRD, revealing an average size 28.31 nm. FE-SEM images illustrated agglomerated spherical morphology with appropriate elemental ratios. optical properties nanocomposite are identified by UV–vis spectroscopy Tauc plot, and calculated bandgap is eV. Photocatalytic activity assessed against cationic (Rhodamine B) anionic (Eosin yellow) dyes under sunlight for 150 min, resulting in maximum degradation efficiency 92 % 98 %, respectively. Furthermore, antibacterial performance evaluated S. aureus E. coli bacteria. findings suggest that prepared exhibits promising potential environmental applications, showcasing its efficacy both photocatalytic domains.

Language: Английский

Citations

10
Tuning photocatalytic activity of Ce-doped BaTiO3 nanoparticles by encountering acoustic shock wave flow exposure DOI
Surendhar Sakthivel, P. Sivaprakash, P. Velusamy

et al.

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

1
Silver-decorated SrTiO3 nanoparticles for high-performance supercapacitors and effective remediation of hazardous pollutants DOI

G. Marimuthu,

C. Indira Priyadharsini,

S. Prabhu

et al.

Environmental Geochemistry and Health, Journal Year: 2024, Volume and Issue: 46(3)

Published: Feb. 20, 2024

Language: Английский

Citations

8
Sol–gel synthesized lithium–cobalt co-doped titanium (IV) oxide nanocomposite as an efficient photocatalyst for environmental remediation DOI
Oluwaseun Adedokun, Omonike Mary Adedokun, Ismaila Taiwo Bello

et al.

Zeitschrift für Physikalische Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: July 5, 2024

Abstract In this study, lithium cobalt co-doped titanium oxide (Li:Co-TiO 2 ) was reported via the sol–gel method in a one-pot synthesis approach and their potential applications were evaluated for photodegradation of organic dye as photocatalysts. The structural optical properties photocatalysts respectively elucidated using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), diffuse reflectance (DRS). morphological elemental composition Li:Co-TiO established by high-resolution field-emission scanning electron microscopy (FESEM) coupled with EDX, which confirmed successful preparation modification TiO Li:Co changes pristine reduction bandgap (3.26–2.8 eV) resultant photocatalytic activity composites examined efficacy through degradation Methylene Blue (MB) dye. revealed an improved performance MB compared to . total amount degraded within time interval irradiation recorded be 72 % 87 respectively. enhanced results obtained from degrade MB, suggest that composite is candidate environmental remediation photocatalysis applications.

Language: Английский

Citations

3
Efficiency assessment of hydrothermally synthesized Mn2+/3+ modified LaCoO3 nanoparticles for advanced wastewater remediation DOI
Jhelai Sahadevan,

Sudhi Suresh,

Kulathuraan Kavu

et al.

Zeitschrift für Physikalische Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: March 26, 2024

Abstract The use of light and a particular material known as photocatalyst to degrade hazardous dyes in wastewater is an exciting new development the field photocatalytic dye degradation. In this study we investigated characteristic properties degradation manganese doped lanthanum cobalt (LaCoO 3 (LCO)) nanoparticles (NPs). NPs were synthesised using hydrothermal synthesis techniques analysed its by utilising diverse technologies such XRD, FeSEM with EDAX, Raman Spectroscopy, Photoluminescence spectroscopy UV-DRS. From XRD analysis found that Mn LCO have single phase rhombohedral crystal structures R 3 ‾ $\bar{3}$ c space group doping cause expansion lattice. Surface morphology was be altered from spherical spine/rod like microstructure when incorporated PL spectroscopies show broad photoemission at 360–490 nm after absorbing 310 light. UV–Vis optical bandgap materials around 4.5 eV, indicating they can absorb visible effectively. both UV light, expanding potential for outdoor applications under natural sunlight. Doping other elements modify improve activity towards specific dyes. exhibits good chemical thermal stability, making it reusable multiple cycles. While shows promise degradation, efficiency vary significantly depending on conditions. We tested Congo Red (CR) prepared how well breakdown Studies reported rates different ranging 50 90 % within hour optimized LCMO exhibited noteworthy activity, evidenced 77 30 min timeframe. Our findings indicate possess significant environmental clean-up.

Language: Английский

Citations

1
Effect of Zr substitution on photocatalytic and magnetic properties of lanthanum titanate DOI

Vasumathi Gopala Prabitha,

Jhelai Sahadevan, Kamalraj Subramaniam

et al.

Zeitschrift für Physikalische Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: March 28, 2024

Abstract Photocatalysis is considered a highly promising method to treat water samples contaminated with organic pollutants. Zirconium-doped lanthanum titanate (LaTi 1− x Zr O 3 , where = 0 (LTO) and 0.05 (LZTO)) NPs were synthesized by the auto-combustion characterized X-ray diffraction analysis (XRD), UV–visible diffuse reflectance spectroscopy (UV–vis DRS), Fourier transform infrared (FTIR), field emission scanning electron microscope (FE-SEM), Raman spectroscopy. LTO LZTO have tetragonal structure an average crystalline size of 16 nm 13 respectively. The band gap from UV–vis DRS was estimated be 3.52 3.36 eV, surface morphology indicates that addition disrupted crystal transformed its spherical into rod-like structure. spectra revealed presence A g B 2g symmetry phonons. magnetic properties analysed vibrating sample magnetometer (VSM) which confirmed ferromagnetic behaviour. nanoparticles been shown efficiency 92 % after 80 min degradation. exhibited enhanced behaviour improved photoactivity for degradation methylene blue dye as compared those pure LTO, make good choice magnetically separable photocatalysts effectively purify water.

Language: Английский

Citations

1
Development of biogenic mediated Ag/ZrO2 nanocomposite photocatalyst for degradation of toxic dyes in textile effluents DOI

K. Vanasundari,

P. Sivaprakash,

Arangarajan Viji

et al.

Zeitschrift für Physikalische Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: June 19, 2024

Abstract Zirconium oxide (ZrO 2 ) nanoparticles doped with silver (Ag) were synthesized utilizing Vitis vinifera leaf extract, offering a non-toxic and cost-effective production method. These evaluated for their photocatalytic activity against both cationic (CR, EY, MO) anionic (CV, MG, MB) dyes, alongside electrochemical impedance spectroscopy studies. The incorporation of into ZrO aimed to enhance the efficiency, particularly under visible light activation, significant removal toxic contaminants. Analysis employing UV-vis pseudo-first-order kinetics model revealed that sunlight exposure notably improved dye degradation. Various techniques employed assess physicochemical characteristics, indicating reduction process in chemical reaction confirming nanoparticle formation through bonding, as evidenced by peaks IR spectrum ranging from 450 660 cm −1 . Furthermore, analysis UV–vis bandgaps 5.1 eV 4.56 eV, tetragonal cubic crystal structures crystalline sizes approximately 15.7 nm 17 Ag–ZrO nanoparticles, respectively. Electrochemical spectra demonstrated addition Ag Zr charge transfer electron separation processes.

Language: Английский

Citations

1