Effect of Calcination Temperature on the Photocatalytic Activity of Precipitated ZnO Nanoparticles for the Degradation of Rhodamine B Under Different Light Sources DOI Open Access

Amira Saidani,

Reguia Boudraa,

Karim Fendi

et al.

Water, Journal Year: 2024, Volume and Issue: 17(1), P. 32 - 32

Published: Dec. 26, 2024

This research provides valuable insights into the application of ZnO nanoparticles in photocatalytic wastewater treatment. Process optimization was carried out by determining ratio surface area to energy band gap (S/E) photocatalysis rate under different sources light (UV light, visible sunlight). The were synthesized using precipitation technique, and calcination process within a temperature range 400 700 °C. structural, morphological, optical properties materials investigated X-ray powder diffraction (XRD), scanning electron microscopy (SEM), UV-Vis diffuse reflectance (UV-Vis DRS), Raman spectroscopies, Fourier transform infrared (FTIR) spectroscopies. study demonstrates that significantly influences activity altering their size, properties, shape, behavior. Optimal decomposition efficiencies Rhodamine B achieved at °C, with yields 24%, 92%, 91% visible, UV, sunlight irradiation, respectively. Additionally, decreased from 12.556 8.445 m2/g, narrowed slightly 3.153 3.125 eV, crystal growth increased 0.223 0.506 µm as rose. assessed determine efficiency decomposing dye operational parameters, including pollutant concentration (C0), sample amount, pH level, reaction time. exhibited best breakdown rates C0 = 5 mg/L, solid-to-liquid (S/L) 50 7, time 1 h. we combined two oxidation processes, namely H2O2 which improved removal efficiency, where 100% RhB degraded after 60 min 100 µL H2O2.

Language: Английский

Comprehensive Stability Analysis of Haloperidol: Insights from Advanced Chromatographic and Thermal Analysis DOI Open Access

Khadidja Djilali,

Rachida Maachi,

Hocine Boutoumi

et al.

Processes, Journal Year: 2025, Volume and Issue: 13(3), P. 904 - 904

Published: March 19, 2025

In this study, we thoroughly investigated the stability of haloperidol using a comprehensive set chromatographic and thermal analyses. Various stress conditions were examined, including exposure to oxidizing agents (such as hydrogen peroxide), dry heat, photolytic conditions, acid alkaline hydrolysis. Significant degradation was observed in acidic environments, leading formation by-products, specifically DPA, DPB, DPC, DPD for basic conditions. contrast, demonstrated robust under photolytic, oxidative, dry-heat For analysis drug its products, C-18 column employed, coupled with mobile phase consisting methanol phosphate buffer (pH = 9.8) 90:10 (v/v) ratio. The analytical method rigorously validated according ICH Q2 (R1) guidelines, ensuring accuracy reliability. This exhibited excellent linearity within concentration range 1 50 µg/mL, an R2 0.999. Additionally, is applicable commercial formulations, without need prior extraction. LC-MS/MS revealed distinct m/z values fragmentation spectra corresponding impurity not documented European Pharmacopoeia monograph drug. Three additional products identified based on base fragments. Thermal analyses, thermogravimetric (TGA), differential scanning calorimetry (DSC), (DTA), provided further evidence active ingredient’s stability, melting temperature approximately 150 °C. These results collectively offer valuable insights into behavior haloperidol, providing critical implications pharmaceutical quality integrity various environmental

Language: Английский

Citations

1
Comprehensive characterization and unprecedented photocatalytic efficacy of TiO2-CuO-La2O3 and TiO2-CuO-Bi2O3 nanocomposites: A novel approach to environmental remediation DOI
Reguia Boudraa, Djahida Talantikite-Touati, Atmane Djermoune

et al.

Materials Science and Engineering B, Journal Year: 2024, Volume and Issue: 312, P. 117863 - 117863

Published: Dec. 2, 2024

Language: Английский

Citations

5
Green Synthesis of Sustainable and Cost-Effective TiO2-SiO2-Fe2O3 Heterojunction Nanocomposites for Rhodamine B Dye Degradation Under Sunlight DOI Open Access
Sara Oumenoune Tebbi, Abdeltif Amrane, Reguia Boudraa

et al.

Water, Journal Year: 2025, Volume and Issue: 17(2), P. 168 - 168

Published: Jan. 10, 2025

TiO2-SiO2-Fe2O3 heterojunction using the ceramic technique was used in this study to investigate its effectiveness as a photocatalyst for Rhodamine B (RhB) dye degradation. Structural, optical, and morphological characterizations of synthesized materials were carried out by X-ray diffraction (XRD), photoluminescence analysis (PL), scanning electron microscopy (SEM-EDS), diffuse reflectance spectroscopy (DRS) calculate gap energy. In addition, degradation rate around 97% obtained at pH 8, an initial RhB concentration 10 mg·L−1, TS-1F semiconductor dosage 1 g·L−1, reaction time 210 min. The ability photocatalysis degrade different ratios, pH, with/without H2O2 aqueous media evaluated under UV light, visible light (250 W), sunlight. When it comes W) sunlight, respectively, influence n–p junction showed promising results RhB. contrast, there no discernible photocatalytic activity which proves that absorbance switched from visible, demonstrating decrease band Additionally, procedure’s cost-effectiveness reusability through economic revealed material interesting terms both cost sustainability.

Language: Английский

Citations

0
Promoting the Photocatalytic power of Nanofibrous mat via Coaxial electrospinning: Activity of Core-sheath Cu-Bi2O3/Cellulose acetate@PAN Mat in Methylene Blue degradation. DOI
Bismark Sarkodie, Benjamin Tawiah, Haijin Liu

et al.

Journal of Cleaner Production, Journal Year: 2025, Volume and Issue: unknown, P. 144764 - 144764

Published: Jan. 1, 2025

Language: Английский

Citations

0
Gd-doped ZnO-g-C3N4 nanocomposite: a novel photocatalyst for the photodegradation of eosin yellow dye in water DOI Creative Commons
Charles Kwame Bandoh, M. Haruna, David Adu-Poku

et al.

Deleted Journal, Journal Year: 2025, Volume and Issue: 7(4)

Published: March 28, 2025

Language: Английский

Citations

0
Innovative Antibacterial Air Filters Impregnated with Photocatalytic MgFe2O4 Nanoparticles for Improved Microbiological Air Quality DOI Open Access
Abdelwahab Rai, Sara Oumenoune Tebbi,

Chaima Ben Mahfoud

et al.

Catalysts, Journal Year: 2025, Volume and Issue: 15(4), P. 365 - 365

Published: April 8, 2025

Over time, nanoparticles’ chemistry has shown exceptional ability to solve a wide range of problems in various fields, including the control microbiological air quality buildings. Herein, magnesium ferrite (MgFe2O4) was synthesized using coprecipitation, then characterized X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Brunauer–Emmett–Teller (BET), scanning electron microscopy (SEM), Transmission Electron Microscopy (TEM) and photoelectron (XPS). MgFe2O4 nanoparticles were assessed for their inhibit Escherichia coli ATCC 8739 growth airborne bacterial viability laboratory atmosphere through direct filtration system. The material showed strong inhibitory activity against E. by eliminating practically all viable cells tested suspensions after 1 h contact time presence light. Finally, prepared setup revealed that passing bacteria non-woven fabric filters impregnated with effectively eliminates them. Thus, only colony-forming unit (CFU) obtained from 36 L filtered air, while filter (without MgFe2O4) allowed passage 2.6 × 105 CFU liquid medium. results initiate potential applications controlling indoor (IAQ), especially healthcare facilities where microbial resistance antibiotics is most notable, individuals are exposed, contamination risks highest.

Language: Английский

Citations

0
Copper(II) ion-modified ZSM-5/TiO2 composite material for photocatalytic degradation of ammonia gas DOI
Jiaming Zhu,

Rong-fei Qi,

Kun Tian

et al.

Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 116472 - 116472

Published: April 1, 2025

Language: Английский

Citations

0
Effect of Calcination Temperature on the Photocatalytic Activity of Precipitated ZnO Nanoparticles for the Degradation of Rhodamine B Under Different Light Sources DOI Open Access

Amira Saidani,

Reguia Boudraa,

Karim Fendi

et al.

Water, Journal Year: 2024, Volume and Issue: 17(1), P. 32 - 32

Published: Dec. 26, 2024

This research provides valuable insights into the application of ZnO nanoparticles in photocatalytic wastewater treatment. Process optimization was carried out by determining ratio surface area to energy band gap (S/E) photocatalysis rate under different sources light (UV light, visible sunlight). The were synthesized using precipitation technique, and calcination process within a temperature range 400 700 °C. structural, morphological, optical properties materials investigated X-ray powder diffraction (XRD), scanning electron microscopy (SEM), UV-Vis diffuse reflectance (UV-Vis DRS), Raman spectroscopies, Fourier transform infrared (FTIR) spectroscopies. study demonstrates that significantly influences activity altering their size, properties, shape, behavior. Optimal decomposition efficiencies Rhodamine B achieved at °C, with yields 24%, 92%, 91% visible, UV, sunlight irradiation, respectively. Additionally, decreased from 12.556 8.445 m2/g, narrowed slightly 3.153 3.125 eV, crystal growth increased 0.223 0.506 µm as rose. assessed determine efficiency decomposing dye operational parameters, including pollutant concentration (C0), sample amount, pH level, reaction time. exhibited best breakdown rates C0 = 5 mg/L, solid-to-liquid (S/L) 50 7, time 1 h. we combined two oxidation processes, namely H2O2 which improved removal efficiency, where 100% RhB degraded after 60 min 100 µL H2O2.

Language: Английский

Citations

2