Photocatalytic degradation performance of a chitosan/ZnO–Fe₃O₄ nanocomposite over cationic and anionic dyes under visible-light irradiation

RSC Advances, Год журнала: 2025, Номер 15(3), С. 1590 - 1603

Опубликована: Янв. 1, 2025

The sonochemical synthesis of a chitosan-ZnO/Fe3O4 nanocomposite yielded highly porous structure and large surface area for enhancing the photocatalytic degradation cationic (rhodamine B, RhB) anionic (methyl orange, MO) dyes in aqueous solution. Chitosan-ZnO/Fe3O4 demonstrated significant enhancement photodegradation efficiency 99.49% MO (C 0 = 5.32 mg L-1, t 150 min) 90.73% RhB 5.03 under visible light due to its narrow bandgap 2.84 eV. performance was investigated by varying pH, dye concentration, reaction time, catalyst dose. obeyed Langmuir-Hinshelwood kinetic model owing high rate constant 0.031 (min-1) 0.013 RhB, respectively. activity lost 18.37% (MO degradation) 11.08% (RhB after first four cycles. presented results highlight irradiation with reusable magnetically retrievable abilities.

Язык: Английский

---

Visible-Light-Driven Desulfurization Reaction Using Partially Oxidized TiN Nanoparticles as Photocatalysts

The Journal of Physical Chemistry C, Год журнала: 2025, Номер unknown

Опубликована: Март 30, 2025

Desulfurization represents an important process in chemical synthesis that produces new molecules and accesses useful carbon radicals. Photocatalytically driving the reactions under broadband visible light illumination is still challenging due to high cost of noble metal complex photocatalysts controlled inert atmospheres widely used reported methods. This work uses partially oxidized TiN nanoparticles comprising earth-abundant elements as drive desulfurization methyl thioglycolate ambient atmosphere with a LED lamp. The yield product, acetate, up 73% after reaction for 18 h. generation accessible radicals confirmed by forming C–C coupling products styrene. results shed on promise modified nanoparticles, which possess strong optical absorption originating from localized surface plasmon resonances (LSPRs), facilitate using light.

Язык: Английский

---

Catalytic hairpin assembly integrated with multifunctional nanocomposites for colorimetric/photothermal/SERS detection of β-lactoglobulin

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 143010 - 143010

Опубликована: Апрель 1, 2025

Язык: Английский

---

Promotional antibacterial performance under dark conditions by silver induced oxygen adsorption and charge transfer

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 116617 - 116617

Опубликована: Апрель 1, 2025

Язык: Английский

---

Synergistic efficiency of modified banana leaf derived cellulose-g-C₃N₄ hybrid composite: a sustainable approach for visible-light-driven photodegradation of dyes

RSC Advances, Год журнала: 2025, Номер 15(17), С. 13712 - 13727

Опубликована: Янв. 1, 2025

Synthesis of g-C 3 N 4 and modified banana-leaf derived cellulose composite for visible light driven photodegradation application methylene blue (MB) rhodamine B dyes.

Язык: Английский

---

Construction of a Bi-doped g-C₃N₄/Bi₂MoO₆ ternary nanocomposite for the effective photodegradation of ofloxacin under visible light irradiation

RSC Advances, Год журнала: 2025, Номер 15(4), С. 2347 - 2360

Опубликована: Янв. 1, 2025

Efficient photocatalytic degradation of ofloxacin by Bi-doped g-C 3 N 4 /Bi 2 MoO 6 ternary composite under visible light.

Язык: Английский

---

Synthesis of Z-scheme Ag₄V₂O₇/Ag₃VO₄/GO nanocomposites for photocatalytic degradation of DDT under visible light

RSC Advances, Год журнала: 2025, Номер 15(9), С. 7078 - 7089

Опубликована: Янв. 1, 2025

The direct Z-scheme Ag4V2O7/Ag3VO4/GO (AVGZ) nanostructure was successfully synthesized using a hydrothermal method with microwave-assisted techniques. obtained AVGZ catalyst characterized by XRD, TEM, EDX, UV-Vis, PL, and XPS methods. characterization results showed that under controlled pH conditions, the orderly stacking of vanadium oxide tetrahedron formed Ag4V2O7 nanoparticles (NPs) on surface Ag3VO4 nanorods (with diameter 50-200 nm). Interestingly, exhibited absorbance in visible light region at 470-550 nm wavelengths. photocatalytic performance evaluated degradation dichloro-diphenyl-trichloroethane (DDT) LED irradiation. Compared to Ag3VO4/Ag4V2O7 material, much higher activity DDT same reaction conditions. optimal conditions were determined be concentration 0.5 g L-1, 6.0, time 4 hours, achieving efficiency 95.46%, according analysis response methodology (RSM) based central composite design (CCD) method. compared Ag3VO4/GO (89.4%) (82.1%), respectively. Scavenging experiments conducted study mechanism spin trapping technique (EPR). indicated ·OH ·O2 - radicals primary oxidizing agents process catalyst. formation heterojunction addition GO accelerated electron-hole pair separation, enhancing durability photocatalysts. Furthermore, photocatalyst also proposed, demonstrating its potential application for light.

Язык: Английский

---

HOF-to-MOF transformation strategy for Porphyrin-based MOF photocatalysts

Journal of Catalysis, Год журнала: 2025, Номер unknown, С. 116207 - 116207

Опубликована: Май 1, 2025

Язык: Английский

---

Electronic tuning of platinum cocatalysts over g-C3N4 nanosheets through the linker engineering for photocatalytic hydrogen evolution

Chemosphere, Год журнала: 2024, Номер 369, С. 143895 - 143895

Опубликована: Дек. 1, 2024

Язык: Английский

---