Ceramics International, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 1, 2024
Language: Английский
Research on Chemical Intermediates, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 8, 2025
Language: Английский
Citations
0
Langmuir, Journal Year: 2025, Volume and Issue: unknown
Published: April 7, 2025
This study reports fabrication of graphene-titanium dioxide (G-TiO2) nanocomposites with varying graphene content (0%, 25%, 50%, and 75%) through a sonication-assisted co-precipitation method. The synthesized materials were analyzed FTIR, DRS, SEM, XRD techniques, which confirmed the successful formation an anatase-phase TiO2 tetragonal structure crystallite sizes ranging from 10 to 25 nm after calcination at 600 °C for 4 h. addition resulted in significant reduction bandgap energy 3.2 eV 1.55 eV, enhancing material's absorption visible-light spectrum. nanocomposite 50% loading exhibited strong adsorption highest photocatalytic efficiency, achieving 98.29% degradation cationic methylene blue dye under irradiation. exceptional performance is attributed synergistic effects graphene, including improved light absorption, enhanced charge carrier separation, increased electron transfer efficiency. Kinetic analysis revealed that followed pseudo-first-order reaction kinetics. Furthermore, recycling tests demonstrated structural stability reusability (up 5 cycles) nanocomposite, indicating its potential as effective photocatalyst environmental applications. effectiveness G-TiO2 mitigating industrial pollutants also underscores significance approach.
Language: Английский
Citations
0
Nanomaterials, Journal Year: 2025, Volume and Issue: 15(8), P. 614 - 614
Published: April 16, 2025
To degrade high-concentration and toxic organic effluents, we developed Fe-Cu active sites loaded on biomass-source carbon aerogel (CA) to produce a low-cost high-efficiency magnetic Fenton-like catalyst for the catalytic oxidative decomposition of pollutants. It exhibits excellent performance in reactions RhB removal at an ultrahigh initial concentration up 1000 ppm. be specific, Fe3O4 Cu nanoparticles are generated situ mesoporous CA support, denoted as Fe3O4-Cu/CA catalyst. Experimentally, factors including dye concentration, dosage, H2O2 pH, temperature, which significantly influence degradation rate RhB, carefully studied. The (1000 ppm) ratio reaches 93.7% within 60 min under low dosage. also shows slight metal leaching (almost 1.4% total Fe 4.0% leached after complete 25 μmol conditions 15 mg 20 mL solution (600 ppm), 200 μL 30 wt% pH 2.5, 40 °C), good activity degrading pollutants, reusability, stability (the is nearly 82.95% 8th cycle reaction). synergistic effect between species plays vital role promoting redox Fe(III)/Fe(II) enhancing generation ·OH. suitable ultrahigh-concentration pollutant practical wastewater treatment applications.
Language: Английский
Citations
0
Research on Chemical Intermediates, Journal Year: 2024, Volume and Issue: 50(10), P. 4597 - 4617
Published: Aug. 28, 2024
Language: Английский
Citations
1
Industrial & Engineering Chemistry Research, Journal Year: 2024, Volume and Issue: 63(43), P. 18411 - 18423
Published: Oct. 17, 2024
With increasingly strict water regulations, the removal of toxic organic pollutants from industrial wastewaters has become a critical challenge. Herein, series novel ZnO-SnSe composite-based photocatalysts were effectively synthesized by an inexpensive, facile chemical process. The prepared composites analyzed thoroughly utilizing different techniques, and their physiochemical characteristics compared with pure ZnO rods SnSe nanoparticles. X-ray diffraction (XRD) data showed existence hexagonal wurtzite phase orthorhombic structure SnSe. average crystallite sizes determined to be 37 16 nm, while for composite samples, size varied between 20 26 respectively. purity samples was confirmed through elemental compositional study using energy-dispersive analysis (EDX). Field emission scanning electron micrographs (FESEM) that appeared rod-shaped random orientation. Similarly, composed agglomerated particles. microstructure coexistence both nanoparticles rod-like structures. PL spectra revealed defects associated oxygen vacancies, which dominant factors enhanced photocatalytic activities. absorption band gap energies red shift rods. values reduced 3.2 eV (pure ZnO) 1.9 increasing concentration in composites. tested visible light-mediated decomposition methylene blue (MB) without H2O2. significantly degradation SnSe, achieving efficiency over 98% 300 min (without H2O2) 97% 160 exposure time (with H2O2). Furthermore, rate, via Langmuir–Hinshelwood model, increased 3.38 × 10–3 1.12 10–2 min–1 scavenger studies elucidated •OH radicals holes primarily responsible photodegradation MB.
Language: Английский
Citations
1
Arabian Journal for Science and Engineering, Journal Year: 2024, Volume and Issue: unknown
Published: Aug. 12, 2024
Language: Английский
Citations
0
RSC Advances, Journal Year: 2024, Volume and Issue: 14(40), P. 29636 - 29647
Published: Jan. 1, 2024
With growing environmental concerns, the removal of toxic industrial dyes from wastewater has become a critical global issue. In this study, TiO
Language: Английский
Citations
0
Ceramics International, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 1, 2024
Language: Английский
Citations
0