Chemical synthesis, characterization, and anticancer potential of CuO/ZrO2/TiO2/RGO nanocomposites against human breast (MCF-7) cancer cells DOI Creative Commons
ZabnAllah M. Alaizeri, Hisham A. Alhadlaq, Saad Aldawood

et al.

RSC Advances, Journal Year: 2024, Volume and Issue: 14(51), P. 37697 - 37708

Published: Jan. 1, 2024

Nanocomposites (NCs) have attractive potential applications in gas-sensing, energy, photocatalysis, and biomedicine. In the present work, fabrication of CuO/ZrO

Language: Английский

Enhanced photocatalytic degradation of methylene blue dye using eco-friendly synthesized rGO@ZnO nanocomposites DOI Creative Commons
Asfaw Negash,

Said Mohammed,

Hulugirgesh Degefu Weldekirstos

et al.

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: Dec. 14, 2023

Abstract Industrial chemical pollutants such as methylene blue (MB) dye are released into the water body and potentially cause harm to human aquatic biosphere. Therefore, this study aims synthesize eco-friendly nanocatalysts, i.e., reduced graphene oxide (rGO), zinc (ZnO), oxide-zinc (rGO@ZnO) nanocomposites, for efficient photocatalytic degradation of MB dye. A graphite rod was obtained from waste dry cell batteries electrochemical exfoliation synthesis (GO) rGO. For ZnO rGO@ZnO Croton macrostachyus leaf extract used a reducing capping agent. The synthesized nanocatalysts were characterized using UV–Vis spectrophotometer, Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy with energy-dispersive X-ray. rGO, ZnO, applied direct sunlight irradiation. At optimum parameters, efficiency reached up 66%, 96.5%, 99.0%, respectively. Furthermore, kinetics photodegradation reaction based on follow pseudo-first-order rate constant 2.16 × 10 –3 min −1 , 4.97 −3 5.03 Lastly, promotes low catalyst load (20 mg)

Language: Английский

Citations

59
Recent Advances in Copper-Based Materials for Sustainable Environmental Applications DOI Creative Commons
Sumalatha Bonthula,

Srinivasa Rao Bonthula,

Ramyakrishna Pothu

et al.

Sustainable Chemistry, Journal Year: 2023, Volume and Issue: 4(3), P. 246 - 271

Published: July 15, 2023

In recent years, copper-based nanomaterials have gained significant attention for their practical applications due to cost-effectiveness, thermal stability, selectivity, high activity, and wide availability. This review focuses on the synthesis extensive of copper in environmental catalysis, addressing knowledge gaps pollution management. It highlights advancements using remediation heavy metals, organic pollutants, pharmaceuticals, other contaminants. Also, it will be helpful young researchers improving suitability implementing correctly establish achieve sustainable goals remediation.

Language: Английский

Citations

30
Effectual visible light photocatalytic reduction of para-nitro phenol using reduced graphene oxide and ZnO composite DOI Creative Commons

Sasireka Velusamy,

Anurag Roy, Ezrah Mariam

et al.

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: June 12, 2023

Removing wastewater pollutants using semiconducting-based heterogeneous photocatalysis is an advantageous technique because it provides strong redox power charge carriers under sunlight irradiation. In this study, we synthesized a composite of reduced graphene oxide (rGO) and zinc nanorods (ZnO) called rGO@ZnO. We established the formation type II heterojunction composites by employing various physicochemical characterization techniques. To evaluate photocatalytic performance rGO@ZnO composite, tested for reducing common pollutant, para-nitro phenol (PNP), to para-amino (PAP) both ultraviolet (UV) visible light irradiances. The rGOx@ZnO (x = 0.5-7 wt%) samples, comprising weights rGO, were investigated as potential photocatalysts reduction PNP PAP Among rGO5@ZnO exhibited remarkable activity, achieving efficiency approximately 98% within short duration four minutes. These results demonstrate effective strategy provide fundamental insights into removing high-value-added organic water pollutants.

Language: Английский

Citations

24
Enhanced photocatalytic performance of a rGO-Ca2Fe2O5 nanocomposite for photodegradation of emergent pollutants DOI Creative Commons
Durga Sankar Vavilapalli, Leiqiang Qin, Justinas Pališaitis

et al.

npj Clean Water, Journal Year: 2024, Volume and Issue: 7(1)

Published: May 17, 2024

Abstract In this study, a simple thermal reduction process is used to synthesize rGO-Ca 2 Fe O 5 (rGO-CFO) nanocomposite, with the morphological and optical characteristics of CFO nanomaterial being modified by rGO incorporation. The interface between nanosheets nanoparticles facilitates efficient charge separation resulting transfer photogenerated carriers across nanosheets, demonstrated from photoluminescence Mott-Schottky tests. Compared (2.1 eV), rGO-CFO has reduced band gap energy 1.9 eV. As synthesized nanocomposites were initially optimized utilized for photodegradation organic effluent Methylene blue (MB). An addition wt% an improved efficiency (97%) compared bare (72%). active species trapping experiment was assess MB mechanism. results demonstrate that hydroxyl radicals holes are major involved in photodegradation. composition (5rGO-CFO) further tested degradation Bisphenol-A Tetracycline (antibiotic). Altogether, these investigations show highly photocatalyst can be remediate emerging contaminants sunlight.

Language: Английский

Citations

11
Effect of Musa acuminata peel extract on synthesis of ZnO/CuO nanocomposites for photocatalytic degradation of methylene blue DOI Creative Commons

Mekdes Tenkolu Maru,

Bedasa Abdisa Gonfa, Osman Ahmed Zelekew

et al.

Green Chemistry Letters and Reviews, Journal Year: 2023, Volume and Issue: 16(1)

Published: Jan. 2, 2023

The photocatalytic degradation of the organic pollutants using green synthesized catalysts is an environmentally safe approach for wastewater treatment. In this study, ZnO and CuO nanoparticles (NPs) ZnO/CuO nanocomposites (NCs) with various weight percents were extract Musa acuminata fruit peel as stablizing capping agent. nanomaterials characterized by TGA/DTA, XRD, SEM, TEM, SAED, HR-TEM, UV-DRS FTIR techniques. methylene blue (MB) dye was investigated under a visible light source. XRD analysed average crystalline sizes 24.9, 17.0 22.6 nm ZnO, CuO, nanomaterials, respectively. SEM TEM analysis confirms that NPs, NCs possessed spherically shaped monoclinic structure. bandgap energies (Eg) NPs found to be 3.25, 1.7 3.18 eV FT-IR presence reducing agents. activities evaluated MB irradiation. photocatalysts exhibited efficiencies 50%, 57%, 90%,

Language: Английский

Citations

22
Biosynthesis of ZnO NPs and ZnO$$\Vert $$CuO NC using Retama monosperma L. (Boiss) stems extract and their cationic dyes removal from wastewater under direct sunlight irradiation DOI
Soufiane Soltani, Amel Gacem

Biomass Conversion and Biorefinery, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Language: Английский

Citations

0
Hybridizing black liquor-derived kraft lignin with Ag3PO4@ZnO to boost tetracycline and dye removal through synergistic adsorption-photocatalytic pathways DOI

Marwa S. Abdelkader,

Sherif A. Younis,

Esraa M. El‐Fawal

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 382, P. 125270 - 125270

Published: April 15, 2025

Language: Английский

Citations

0
ZnO/CuO Nanocomposites for Enhanced Photocatalytic and Antibacterial Applications: A Comparative Study of Synthesis Methods DOI Creative Commons

Solomon Bekele Endeshaw,

Mahendra Goddati, Jaebeom Lee

et al.

Journal of Science Advanced Materials and Devices, Journal Year: 2025, Volume and Issue: unknown, P. 100898 - 100898

Published: May 1, 2025

Language: Английский

Citations

0
Biosynthesized pure CuO, N-CuO, Zn-CuO, and N-Zn-CuO nanoparticles for photocatalytic activity: Enhanced optical properties through bandgap engineering DOI
Yohannes Shuka Jara, Endale Tsegaye Mohammed,

Tilahun Tumiso Mekiso

et al.

Next Materials, Journal Year: 2025, Volume and Issue: 8, P. 100742 - 100742

Published: May 24, 2025

Language: Английский

Citations

0
Synthesis of rGO-CuO/ZnO nanocomposites for humidity tolerant room temperature NO2 gas sensor DOI
Dinesh Yadav, Prem Sagar Shukla, G. D. Varma

et al.

Applied Physics A, Journal Year: 2024, Volume and Issue: 130(10)

Published: Sept. 11, 2024

Language: Английский

Citations

3