Simultaneous degradation of methyl orange and indigo carmine dyes from an aqueous solution using nanostructured WO3 and CuO supported on Zeolite 4A

Separation and Purification Technology, Год журнала: 2024, Номер 344, С. 127265 - 127265

Опубликована: Март 30, 2024

Язык: Английский

---

Annona muricata leaf extract mediated synthesis of pure and Co doped TiO2 nanoparticles: Evaluation of catalytic reduction, antimicrobial and antioxidant activities

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 103, С. 766 - 786

Опубликована: Янв. 22, 2025

Язык: Английский

---

Dual-Function Photocatalysis in the Visible Spectrum: Ag-G-TiO2 for Simultaneous Dye Wastewater Degradation and Hydrogen Production

Catalysts, Год журнала: 2024, Номер 14(8), С. 530 - 530

Опубликована: Авг. 15, 2024

Photocatalytic processes offer promising solutions for environmental remediation and clean energy production, yet their efficiency under the visible light spectrum remains a significant challenge. Here, we report novel silver–graphene (Ag-G) modified TiO2 (Ag-G-TiO2) nanocomposite photocatalyst that demonstrates remarkably enhanced photocatalytic activity both dye wastewater degradation hydrogen production UV irradiation. Through comprehensive characterization performance analysis, reveal Ag-G modification narrows bandgap from 3.12 eV to 1.79 eV, enabling efficient absorption. The achieves peak rate of 191 μmolesg−1h−1 in deionized (DI) water solution light, significantly outperforming unmodified TiO2. Intriguingly, observe an inverse relationship between rates with tap versus DI water, highlighting critical role composition processes. This work not only advances understanding fundamental mechanisms but also presents solar-driven production. Ag-G-TiO2 nanocomposite’s across spectra, coupled its dual functionality evolution, represents step towards addressing challenges treatment sustainable generation. Our findings highlight complex interplay absorption reaction conditions, offering new insights optimizing systems. research paves way developing more versatile photocatalysts, potentially contributing global transition technologies circular economy waste management

Язык: Английский

---

Unlocking the power of amorphous TiO2-decorated biocarbon composite: Enhanced photocatalytic performance for crystal violet dye degradation

Journal of Water Process Engineering, Год журнала: 2025, Номер 71, С. 107288 - 107288

Опубликована: Фев. 26, 2025

Язык: Английский

---

Synthesis of TiO ₂ nanoparticles using red spinach leaf extract ( Amaranthus Tricolor L. ) for photocatalytic of methylene blue degradation

Green Chemistry Letters and Reviews, Год журнала: 2024, Номер 17(1)

Опубликована: Май 16, 2024

Textile industry waste such as methylene blue can pose a serious threat to health and ecosystems. One solution overcome this problem is utilize photocatalytic technology using TiO2 semiconductors. This research aims make green synthetic nanoparticles (NPs) red spinach (Amaranthus Tricolor L.) leaf extract used for photodegradation of blue. Extraction leaves showed that 30 min temperature 95°C the highest phenolic content. In research, several compounds were also identified in extract. For NPs, X-ray diffraction results show has pure anatase phase. Electron microscope shape agglomerated spherical clusters. The particle size distribution shows an average range 77–90 nm. had efficiency 90.36% 180 min, higher than commercial Evonic. result be attributed small broadband spectra so photocatalysis more effective.

Язык: Английский

---

Synthesis of Lawsonia inermis-encased silver–copper bimetallic nanoparticles with antioxidant, antibacterial, and cytotoxic activity

Green Processing and Synthesis, Год журнала: 2024, Номер 13(1)

Опубликована: Янв. 1, 2024

Abstract The extract of the medicinal plant Lawsonia inermis , known as henna, was employed to synthesize silver–copper bimetallic nanoparticles (Ag–Cu NPs) in a unique, efficient, and cost-effective method. shape, size, structural features synthesized Ag–Cu NPs were determined by ultra–visible spectroscopy, Fourier transform infrared X-ray diffractometer, field emission scanning electron microscopy, transmission energy dispersive spectroscopy methods. rod-shaped nanoparticles, averaging 41.66 ± 17.18 nm from L. exhibited potent antioxidant activity inhibiting 2,2-diphenyl-1-picrylhydrazyl 2,2′-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) free radicals. They also displayed significant antibacterial effects against Pseudomonas aeruginosa (28 mm), Staphylococcus aureus (27 Bacillus cereus (26 Escherichia coli (24 mm). Additionally, these induced notable morphological changes cancer cells demonstrated promising cytotoxicity MDA-MB-231 tumor (IC 50 = 37.40 µg·mL −1 ). However, they biotoxicity Artemia nauplii resulting mortality rates ranging 3.0% 32.5%. LC 90 values recorded for 48-h exposure 1.51 mg·L 2.59 respectively. These findings highlight potential application -derived pharmacology bio-nanomedicine.

Язык: Английский

---

Synergetic comparative study: Photocatalytic and biological investigations of green-synthesized metal oxide nanoparticles

Nano-Structures & Nano-Objects, Год журнала: 2024, Номер 38, С. 101184 - 101184

Опубликована: Май 1, 2024

Язык: Английский

---

Performance of Ag-doped CuO nanoparticles for photocatalytic activity applications: Synthesis, characterization, and antimicrobial activity

Discover Nano, Год журнала: 2024, Номер 19(1)

Опубликована: Окт. 5, 2024

Abstract The auto-combustion method synthesized CuO NPs and Ag/CuO NPs. were analyzed using Fourier-transform infrared, X-ray diffraction, scanning electron microscope, Energy-dispersive spectroscopy instrumental analyses. energy band gap, as determined by DRS properties, decreases from 3.82 to 3.50 eV for pure 10% NPs, respectively. photodegradation efficiency of Rhodamine-B & Carmine was nearly 98.9 97.8%, Antimicrobial trials revealed that the antimicrobial efficacy at several dosages (20, 40, 60, 80, 100, 120 µg/mL) against human pathogens initially assessed agar well-diffusion method, then broth dilution method. Noticeably, minimum inhibitory concentration all ranged 100 µg/ml, determined. Generally, observed microbicide has a wide range doses, ranging 150 300 which helps kill (99.99%) tested pathogenic cells. largest relative activities (%) recorded Escherichia coli (81.45 ± 1.39) g/mL μg/mL (80.43 0.59), followed 80 µg/mL (72.33 0.82). Additionally, lowest monitored versus fungal cells Gram-positive bacteria 52.17 1.49 53.42 1.71; Graphic abstract

Язык: Английский

---

Eco-friendly synthesis of pure lignin nanoparticle and silver-doped lignin nanoparticle using fig tree bark for photocatalytic degradation of Rhodamine B dye and assessment of their anticancer and antibacterial performance

Inorganic Chemistry Communications, Год журнала: 2024, Номер unknown, С. 113399 - 113399

Опубликована: Окт. 1, 2024

Язык: Английский

---

Unlocking the potential of titanium dioxide nanoparticles: an insight into green synthesis, optimizations, characterizations, and multifunctional applications

Microbial Cell Factories, Год журнала: 2024, Номер 23(1)

Опубликована: Дек. 23, 2024

This comprehensive review explores the emergence of titanium dioxide nanoparticles (TiO

Язык: Английский

---