Emerging NiO–rGO nanohybrids for antibiotic pollutant degradation under visible-light irradiation

Ansari, Sajid Ali; Parveen, Nazish; Alsulaim, Ghayah M.; Ansari, Anees A.; Alsharif, Shada A.; Alnahdi, Kholoud; Alali, Hasna Abdullah; Reddy, Vahini

doi:10.1016/j.surfin.2023.103078

Cited by 11 publications

(6 citation statements)

References 45 publications

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“…10 However, Ansari et al have reported the growth of NiO nanocubes on an rGO sheet to form nanohybrids through a one-step hydrothermal method, demonstrating high efficiency in degrading ciprofloxacin (Cipxn) (91.5%) and tetracycline (94.75%) under visible light irradiation. 11 Furthermore, they synthesized elemental semiconductor red phosphorus/ZnO nanohybrid (Z-Rp) via a simple, cost-effective, and sustainable ball milling approach and evaluated its visible-light-driven photocatalytic activity for degrading methyl orange under visible irradiation. 12 Within the realm of transition metal oxides (TMOs), tungsten oxide nanocrystals have garnered significant attention in the fields of energy conversion and environmental applications.…”

Section: Introductionmentioning

confidence: 99%

“…Also, they fabricated chitosan-coated CDC@NiO, employing it as an active material for both half-cell and full-cell studies and exhibited a specific capacitance of 1101.10 F g –1 and exceptional cyclic stability . However, Ansari et al have reported the growth of NiO nanocubes on an rGO sheet to form nanohybrids through a one-step hydrothermal method, demonstrating high efficiency in degrading ciprofloxacin (Cipxn) (91.5%) and tetracycline (94.75%) under visible light irradiation . Furthermore, they synthesized elemental semiconductor red phosphorus/ZnO nanohybrid (Z-Rp) via a simple, cost-effective, and sustainable ball milling approach and evaluated its visible-light-driven photocatalytic activity for degrading methyl orange under visible irradiation …”

Section: Introductionmentioning

confidence: 99%

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Glutathione-Mediated Synthesis of WO₃ Nanostructures with Controllable Morphology/Phase for Energy Storage, Photoconductivity, and Photocatalytic Applications

Barhoi,

Mahto,

Ali

et al. 2024

Langmuir

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Developing an improved synthesis method that controls the morphology and crystal phase remains a substantial challenge. Herein, we report phase and morphologycontrolled hydrothermal synthesis of tungsten oxides by varying acid concentration and utilizing glutathione (GSH) as a structural directing agent, together with the exploration of their applications in supercapacitors, photoconductivity, and photocatalysis. Orthorhombic hydrated tungsten oxide (WO 3 •0.33H 2 O) with nonuniform block and plate-like morphology was obtained at 3 M hydrochloric acid (HCl). In contrast, nonhydrated monoclinic tungsten oxide (WO 3 ) with smaller rectangular blocks was obtained at 6 M HCl. Further, the addition of GSH results in an increase in the surface area of the materials along with a narrowing of the band gap. Moreover, it plays a pivotal role in regulating the morphology through oriented attachments, Ostwald ripening, and the self-assembly of WO 3 nuclei. GHTO and GTO polymorphs showed pseudocapacitive behavior with the highest specific capacitances of 450 and 300 F g −1 at 0.5 A g −1 , maintaining 94 and 92% retention stability, respectively, over 1000 cycles at 2 A g −1 . Also, the synthesized materials displayed favorable photoconductivity under light irradiation, implying potential utilization in photovoltaic applications. Moreover, these materials exhibited remarkable photocatalytic performance in the degradation of methylene blue (MB) dye, establishing themselves as highly effective photocatalysts. Therefore, nanostructured tungsten oxide showcases its versatility, rendering it an appealing candidate for energy storage, photovoltaic systems, and photocatalysis.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Glutathione-Mediated Synthesis of WO₃ Nanostructures with Controllable Morphology/Phase for Energy Storage, Photoconductivity, and Photocatalytic Applications

Barhoi,

Mahto,

Ali

et al. 2024

Langmuir

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“…Contaminants infiltrate the human system via the food chain, persisting and potentially resulting in the development of malignant tumors, given that numerous contaminants possess carcinogenic properties . Water sources are often contaminated with a variety of organic and inorganic dyes, which are introduced as effluents . Dyes serve as pigments employed in various sectors such as textiles, paint, photography, etc .…”

Section: Introductionmentioning

confidence: 99%

“… 3 Water sources are often contaminated with a variety of organic and inorganic dyes, which are introduced as effluents. 4 Dyes serve as pigments employed in various sectors such as textiles, paint, photography, etc. 5 The adverse effects observed in water systems can be mostly linked to the structure and origin of dyes, notwithstanding their significant utility.…”

Section: Introductionmentioning

confidence: 99%

Tailoring Vanadium-Based Magnetic Catalyst by In Situ Encapsulation of Tungsten Disulfide and Applications in Abatement of Multiple Pollutants

Manzoor,

Aziz,

Raza

et al. 2023

ACS Omega

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A magnetic nanocomposite of tungsten and vanadium was employed as a catalyst for the mitigation of water contaminants, including a carcinogenic dye (Congo red, CR), a widely used pesticide (glyphosate), and the bacterial strain Escherichia coli . Additionally, it was subjected to several characterization techniques. X-ray diffraction spectroscopy examination validated the synthesized nanoparticles’ crystalline nature, and scanning electron microscopy and energy-dispersive X-ray analysis were employed to examine the morphology and elemental composition of the catalyst. The use of thermogravimetric analysis enabled the elaboration of the thermal behavior of tungsten sulfide–vanadium decorated with Fe 2 O 3 nanoparticles. The experiments were conducted under visible light conditions. The highest levels of photodegradation of 96.24 ± 2.5% for CR and 98 ± 1.8% for glyphosate were observed following a 180 min exposure to visible light at pH values of 6 and 8, respectively. The quantum yields for CR and Gly were calculated to be 9.2 × 10 –3 and 4.9 × 10 –4 molecules photon –1 , respectively. The findings from the scavenger analysis suggest the involvement of hydroxyl radicals in the degradation mechanism. The study evaluated the inhibition of E. coli growth when exposed to a concentration of 0.1 g/10 mL of the photocatalyst, utilizing a 1 mL sample of the bacterial strain. The successful elimination of CR and glyphosate from water-based solutions, along with the subsequent antibacterial experiments, has substantiated the efficacy of the photocatalyst in the field of environmental remediation.

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“…21 S. A. Ansari et al published an effective method for antibiotic degradation using NiO-rGO hybrids under visible light. 22 There are literature reports for the degradation of different pollutants using semiconductor-graphene oxide composites. 23,24 Considering these works, it is believed that quantum dot-graphene nanocomposites hold significant potential for diverse technological applications.…”

mentioning

confidence: 99%

The Effect of Graphene Oxide on Optical, Ferroelectric, and Catalytic Properties of Protein-Encapsulated ZnSe Nanocomposite

Rapaka,

Bhagavathula

et al. 2024

ECS J. Solid State Sci. Technol.

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To explore the effect of graphene oxide (GO) on optical, ferroelectric, and catalytic properties of the protein-encapsulated ZnSe nanocomposite, we have prepared BSA-encapsulated ZnSe (BSA-ZnSe) nanocomposite and graphene oxide integrated BSA-encapsulated ZnSe (GO/BSA-ZnSe) nanocomposite samples. The ZnSe nanoparticles within these nanocomposites exhibit a highly crystalline zincblende structure with an average size of 3.7 nm. Transmission electron microscopy studies confirm the successful integration of GO in the BSA-encapsulated ZnSe sample. Fourier-transform infrared spectroscopy results suggest that the interactions between ZnSe nanoparticles and BSA, likely facilitated by the amide and hydroxyl groups present in BSA. Optical studies showed that the addition of GO influenced the emission spectra towards a red shift, which is attributed to the conductive influence of graphene oxide. The ferroelectric properties indicated that the graphene integrated ZnSe nanocomposite exhibited high remanence and coercivity due to the interaction of semiconductive ZnSe with GO layers. In terms of catalytic activity, the GO/BSA-ZnSe nanocomposite exhibited better performance compared to the BSA-ZnSe nanocomposite.These results highlight the significant influence of graphene oxide on the optical, ferroelectric, and catalytic properties of the BSA-encapsulated ZnSe nanocomposite.

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Emerging NiO–rGO nanohybrids for antibiotic pollutant degradation under visible-light irradiation

Cited by 11 publications

References 45 publications

Glutathione-Mediated Synthesis of WO₃ Nanostructures with Controllable Morphology/Phase for Energy Storage, Photoconductivity, and Photocatalytic Applications

Glutathione-Mediated Synthesis of WO₃ Nanostructures with Controllable Morphology/Phase for Energy Storage, Photoconductivity, and Photocatalytic Applications

Tailoring Vanadium-Based Magnetic Catalyst by In Situ Encapsulation of Tungsten Disulfide and Applications in Abatement of Multiple Pollutants

The Effect of Graphene Oxide on Optical, Ferroelectric, and Catalytic Properties of Protein-Encapsulated ZnSe Nanocomposite

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Emerging NiO–rGO nanohybrids for antibiotic pollutant degradation under visible-light irradiation

Cited by 11 publications

References 45 publications

Glutathione-Mediated Synthesis of WO3 Nanostructures with Controllable Morphology/Phase for Energy Storage, Photoconductivity, and Photocatalytic Applications

Glutathione-Mediated Synthesis of WO3 Nanostructures with Controllable Morphology/Phase for Energy Storage, Photoconductivity, and Photocatalytic Applications

Tailoring Vanadium-Based Magnetic Catalyst by In Situ Encapsulation of Tungsten Disulfide and Applications in Abatement of Multiple Pollutants

The Effect of Graphene Oxide on Optical, Ferroelectric, and Catalytic Properties of Protein-Encapsulated ZnSe Nanocomposite

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Product

Resources

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Glutathione-Mediated Synthesis of WO₃ Nanostructures with Controllable Morphology/Phase for Energy Storage, Photoconductivity, and Photocatalytic Applications

Glutathione-Mediated Synthesis of WO₃ Nanostructures with Controllable Morphology/Phase for Energy Storage, Photoconductivity, and Photocatalytic Applications