High-yielding strategy for microwave-assisted synthesis of Cr2O3 nanocatalyst

Yahyazadehfar, Mahdieh; Ahmadi, Sayed Ali; Sheikhhosseini, Enayatollah; Ghazanfari, Dadkhoda

doi:10.1007/s10854-020-03710-2

Cited by 11 publications

(8 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, the diffractograms of monoclinic ZrO 2 (according to JCPDS: 01-088-2390) display peaks at 27.8°, 31.2°, and 34.1° [ 9 ]. Indeed, the sharp peaks provide evidence for the crystalline nature of the tested oxy components [ 10 ]. Figure 1 A also showed the pure compositional components of ZnS/ZrO 2, GO, and CS, and demonstrated that the introduced XRD bands are an integration of the raw constituents’ main peaks.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis and Characterization of Chitosan-Containing ZnS/ZrO2/Graphene Oxide Nanocomposites and Their Application in Wound Dressing

et al. 2022

View full text Add to dashboard Cite

The development of scaffold-based nanofilms for the acceleration of wound healing and for maintaining the high level of the healthcare system is still a challenge. The use of naturally sourced polymers as binders to deliver nanoparticles to sites of injury has been highly suggested. To this end, chitosan (CS) was embedded with different nanoparticles and examined for its potential usage in wound dressing. In detail, chitosan (CS)-containing zinc sulfide (ZnS)/zirconium dioxide (ZrO2)/graphene oxide (GO) nanocomposite films were successfully fabricated with the aim of achieving promising biological behavior in the wound healing process. Morphological examination by SEM showed the formation of porous films with a good scattering of ZnS and ZrO2 nanograins, especially amongst ZnS/ZrO2/GO@CS film. In addition, ZnS/ZrO2/GO@CS displayed the lowest contact angle of 67.1 ± 0.9°. Optically, the absorption edge records 2.35 eV for pure chitosan, while it declines to 1.8:1.9 scope with the addition of ZnS, ZrO2, and GO. Normal lung cell (WI-38) proliferation inspection demonstrated that the usage of 2.4 µg/mL ZnS/ZrO2/GO@CS led to a cell viability % of 142.79%, while the usage of 5000 µg/ mL led to a viability of 113.82%. However, the fibroblast malignant cell line exposed to 2.4 µg/mL ZnS/ZrO2/GO@CS showed a viability % of 92.81%, while this percentage showed a steep decline with the usage of 5000 µg/ mL and 2500 µg/mL, reaching 23.28% and 27.81%, respectively. Further biological assessment should be executed with a three-dimensional film scaffold by choosing surrounding media characteristics (normal/malignant) that enhance the selectivity potential. The fabricated scaffolds show promising selective performance, biologically.

show abstract

Section: Resultsmentioning

confidence: 99%

“…This could be achieved with polymeric materials [ 7 , 8 ]. In addition, the recommended materials have to be tailored with non-toxic raw materials with control of surface morphology in mind [ 9 , 10 , 11 ]. Obviously, the rough scaffolds offer high adhesion potential.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Chitosan-Containing ZnS/ZrO2/Graphene Oxide Nanocomposites and Their Application in Wound Dressing

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Novel techniques have to be developed to overcome the disadvantages of previous approaches. Based on our previous experience in the synthesis of organic nanocatalysts for use in inorganic reactions ( Yahyazadehfar et al, 2019 ; Yahyazadehfar et al, 2020 ; Moghaddam-Manesh et al, 2020), this study examined the application of the organic nanocatalyst, CB Fe-MOF@Fe 3 O 4 NFC, to synthesize the heterocyclic dihydropyrano[3, 2-c] chromene derivative via a three-component reaction involving malononitrile, aromatic aldehydes, and 4-hydroxycoumarin.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of an Fe-MOF@Fe3O4 nanocatalyst and its application as an organic nanocatalyst for one-pot synthesis of dihydropyrano[2,3-c]chromenes

Sheikhhosseini

Yahyazadehfar²

2023

Front. Chem.

Self Cite

View full text Add to dashboard Cite

In this study, the recyclable heterogeneous cluster bud Fe-MOF@Fe3O4 ‘nanoflower’ composite (CB Fe-MOF@Fe3O4 NFC) was successfully synthesized using Fe(NO3)3·9H2O, 8-hydroxyquinoline sulfate monohydrate, and Fe3O4 nanoparticles by microwave irradiation. The as-prepared CB Fe-MOF@Fe3O4 NFC was characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), vibrational sampling magnetometry (VSM), and Fourier transform infrared spectroscopy (FTIR). The CB Fe-MOF@Fe3O4 NFC samples proved to have excellent catalytic activity. The activity of the CB Fe-MOF@Fe3O4 NFC nanocatalyst was explored in the synthesis of dihydropyrano[3, 2-c]chromene derivatives via a three-component reaction of 4-hydroxycoumarin, malononitrile, and a wide range of aromatic aldehyde compounds. Optimized reaction conditions had several advantages, including the use of water as a green solvent, environmental compatibility, simple work-up, reusability of the catalyst, low catalyst loading, faster reaction time, and higher yields.

show abstract

“…Condensation reaction is among those chemical activities for which devising a new environmentally friendly catalyst could potentially provide an approach for dealing with the aforementioned challenges. Upon our previous study on synthesis of organic compounds by nanoparticles [26][27][28][29], the scope of the present work was to achieve the multi-component pyrano [2, 3-d] pyrimidines by using NiO nano powders as a green, environmentally friendly catalyst (Scheme 1).…”

Section: Introductionmentioning

confidence: 99%

Nio Nanoparticles: A Highly Efficient Catalyst for the One-Pot Three- Component Synthesis of Pyrano [2, 3-D] Pyrimidine Derivatives in Green Reaction Media

Sabbaghnasab

Sheikhhosseini

2022

LOC

Self Cite

View full text Add to dashboard Cite

: NiO nanoparticles are utilized to effectively strengthen annulated pyrano [2, 3- d] pyrimidine synthesis through primary Knoevenagel, following Micheal and ultimate heterocyclization reactions of aldehyde, malononitrile, and barbituric acid. The characteristics of NiO nanoparticles are identified using advanced techniques, such as IR, UV, EDX, XRD, SEM, and TEM. The nano-NiO particles are mostly below < 100 nm in size with uniform spherical shapes. The adopted approach is advantages thanks to its simple processing, relatively short reaction time, often good to high average yields, convenient workability, and environmental friendliness.

show abstract

High-yielding strategy for microwave-assisted synthesis of Cr2O3 nanocatalyst

Cited by 11 publications

References 32 publications

Synthesis and Characterization of Chitosan-Containing ZnS/ZrO2/Graphene Oxide Nanocomposites and Their Application in Wound Dressing

Synthesis and Characterization of Chitosan-Containing ZnS/ZrO2/Graphene Oxide Nanocomposites and Their Application in Wound Dressing

Synthesis and characterization of an Fe-MOF@Fe3O4 nanocatalyst and its application as an organic nanocatalyst for one-pot synthesis of dihydropyrano[2,3-c]chromenes

Nio Nanoparticles: A Highly Efficient Catalyst for the One-Pot Three- Component Synthesis of Pyrano [2, 3-D] Pyrimidine Derivatives in Green Reaction Media

Contact Info

Product

Resources

About