Synthesis of MoO3 microrods via phytoconsituents of Azadirachta indica leaf to study the cationic dye degradation and antimicrobial properties

Karthiga, R.; Kavitha, B.; Rajarajan, Muttukrishnan; Suganthi, A.

doi:10.1016/j.jallcom.2018.04.230

Cited by 26 publications

(8 citation statements)

References 30 publications

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“…Molybdenum oxides are renowned for numerous uses, such as sensors, catalysts, luminescence, electrochemical devices, supercapacitor, etc., owing to their distinctive physicochemical properties . Mo-based nanomaterials were largely studied in the field of photocatalytic pollutant degradation. − Incorporation of some precious metals to molybdenum oxides to boost the optical, catalytic, and sensing properties has conquered great attention today for their robust claim in various fields, such as photoluminescence, microwave applications, optical fibers, scintillator materials, humidity sensors, magnetic devices, catalysis, and electrochemical sensors. Recently, many metal molybdates with different morphologies and properties were reported. − Lamellar oxide of transition noble metals, mainly silver molybdate nanostructures, is bringing boundless concern among researchers due to its high-temperature friction coefficient without decomposition during melting, high electrical conductivity, surface plasmon resonance, and highly selective sensing capacity.…”

Section: Introductionmentioning

confidence: 99%

In Situ Synthesis, Characterization, and Catalytic Performance of Polypyrrole Polymer-Incorporated Ag₂MoO₄Nanocomposite for Detection and Degradation of Environmental Pollutants and Pharmaceutical Drugs

Abinaya¹,

Rajakumaran

Chen

et al. 2019

ACS Appl. Mater. Interfaces

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Material combinations of semiconductor with conducting polymer are gaining growing interest due to their enhanced activities in photocatalysis as well as electrochemical sensing. In this present work, we report a facile in situ synthesis of polypyrrole (PPy) polymer-incorporated silver molybdate (Ag 2 MoO 4 ) nanocomposite that is utilized as a photocatalyst and electrocatalyst for the degradation of pollutant heavy metals, namely, methylene blue (MB) and heavy metal (Cr(VI)), and ciprofloxacin (CIP) and for detection of the drug, azomycin. The synthesized nanocomposite was characterized by various theoretical, spectral, and microscopic studies. Matching of the powder X-ray diffraction pattern with JCPDS no. 76-1747 confirmed the formation of α-Ag 2 MoO 4 /PPy. The surface topography and spherical morphology of the nanocomposite were studied using field emission-scanning electron microscopy and transmission electron microscopy. Fourier transform infrared spectral detail expounds the smooth incorporation of PPy to Ag 2 MoO 4 . The as-synthesized nanocomposite performs as an efficient photocatalyst in the degradation of MB (99.9%), Cr(VI) (99%), and CIP drug (99.8%) within 10 min. In addition to this, the Ag 2 MoO 4 /PPy-modified glassy carbon electrode (GCE) demonstrated excellent electrocatalytic activity in terms of a higher cathodic peak current and lower peak potential when compared with other modified and unmodified GCEs for the detection of azomycin. The Ag 2 MoO 4 /PPy/GCE displayed a broader linear response range and lower detection limit of 0.5−499 μM and 65 nM, respectively. Moreover, other potentially co-interfering compounds, such as a similar functional group-containing biological substances and inorganic species, have no interference effect toward azomycin sensing.

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Section: Introductionmentioning

confidence: 99%

In Situ Synthesis, Characterization, and Catalytic Performance of Polypyrrole Polymer-Incorporated Ag₂MoO₄Nanocomposite for Detection and Degradation of Environmental Pollutants and Pharmaceutical Drugs

Abinaya¹,

Rajakumaran

Chen

et al. 2019

ACS Appl. Mater. Interfaces

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“…Different type of metal oxide NPs; Mn 3 O 4 , Co 3 O 4, MoO 3, CuO have been synthesized from the precursors using A. indica as plant resource material by Green route 13,14 . FTIR spectrum revealed the presence of metabolites like alkaloids, saladucin, triterpenoids, valassin, meliacin, nimbidin, flavonoids, and geducin on NPs surfaces making them highly stable without changing their crystallinity…”

Section: Resultsmentioning

confidence: 99%

Antibacterial and Anti-Quorum Sensing Studies of Extracellularly Synthesized Silver Nanoparticles from Azadirachta indica (Neem) Leaf Extract

Mishra

Gwalani

Nashikkar

et al. 2022

Biosci., Biotech. Res. Asia

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Azadirachta indica (Neem ) is an important medicinal plant with proven strong antiseptic, antiviral, antifungal and antibacterial properties. The study here presents the antibacterial and QS (Quorum Sensing) inhibitory potential of biogenic Silver nanopaticles (AgNPs) from Azadirachta indica leaf extracts. The nanoparticles were synthesized using an aqueous extract of Azadirachta indica leaves and silver nitrate solution. The size, crystal structure, elemental composition and other physical properties of nanoparticles were determined using different microscopic and spectroscopic techniques. The average diameter of the nanoparticles was found to be between 20-43 nm with crystalline morphology. These extracellularly synthesized AgNPs strongly inhibited Gram negative pathogenic species and exhibited demonstrable anti- Quorum Sensing (QS) activity as evident from pigment inhibition and 75- 80% decrease in biofilm mass on AgNPs treatment in a dose dependent manner.

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“…V 2 O 5 nanoparticles had good antibacterial efficacy against pathogens including Escherichia coli and Staphylococcus aureus [27]. An outstanding antimicrobial activity against Staphylococcus aureus, Escherichia coli, Aspergillus flavus, and Candida albicans was shown by MoO 3 nanoparticles [28].…”

Section: Introductionmentioning

confidence: 99%

Antibacterial Efficacy of Phytosynthesized Multi‐Metal Oxide Nanoparticles against Drug‐Resistant Foodborne Pathogens

Selvakumar

Muthusamy

Mukherjee

et al. 2022

Journal of Nanomaterials

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Human health is threatened worldwide by microbial infections. Antibiotic overuse and misuse have resulted in antimicrobial-resistant bacteria. To battle such resistant microbes, we are looking for safe and alternative antimicrobial treatments, and the advent of nanotechnology holds promise in this regard. Metal oxide nanoparticles have emerged as a promising alternative source for combating bacteria resistant to various antibiotics over the last two decades. Due to their diverse physicochemical characteristics, metal oxide nanoparticles can operate as antibacterial agents through various methods. In the present research, six types of metal oxide NPs were synthesized and characterized (XRD, FTIR, SEM with EDAX, and TEM) from different plants such as Hydrangea paniculata (for NiO NP synthesis), Plectranthus amboinicus (for ZnO-NP synthesis), and Andrographis paniculata (V2O5 NPs). On the other hand, drug-resistant pathogens were isolated from clinical samples, those who suffered from foodborne illness. V2O5 NPs produced from Andrographis paniculata plant extract have much higher bactericidal efficacy than other metal oxide NPs against all three bacterial strains. Sensitive bacteria included S. aureus and E. coli, followed by K. pneumoniae. As a result, structural characterization was used to further screen V2O5 NPs. The orthorhombic structure of the crystallites was confirmed by XRD, with an average crystallite size of 20 nm. The absorbance spectrum and functional groups were identified using UV-visible spectral analysis and FTIR. SEM and EDX identified spherical-shaped NPs, and particle size (58 nm) was confirmed by transmission electron microscopy (TEM). As a result, we hypothesized that bioinspired V2O5-NPs could be employed as a possible antibacterial agent against drug-resistant pathogenic bacteria to replace currently existing inefficient antibacterial drugs.

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Synthesis of MoO3 microrods via phytoconsituents of Azadirachta indica leaf to study the cationic dye degradation and antimicrobial properties

Cited by 26 publications

References 30 publications

In Situ Synthesis, Characterization, and Catalytic Performance of Polypyrrole Polymer-Incorporated Ag₂MoO₄Nanocomposite for Detection and Degradation of Environmental Pollutants and Pharmaceutical Drugs

In Situ Synthesis, Characterization, and Catalytic Performance of Polypyrrole Polymer-Incorporated Ag₂MoO₄Nanocomposite for Detection and Degradation of Environmental Pollutants and Pharmaceutical Drugs

Antibacterial and Anti-Quorum Sensing Studies of Extracellularly Synthesized Silver Nanoparticles from Azadirachta indica (Neem) Leaf Extract

Antibacterial Efficacy of Phytosynthesized Multi‐Metal Oxide Nanoparticles against Drug‐Resistant Foodborne Pathogens

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Synthesis of MoO3 microrods via phytoconsituents of Azadirachta indica leaf to study the cationic dye degradation and antimicrobial properties

Cited by 26 publications

References 30 publications

In Situ Synthesis, Characterization, and Catalytic Performance of Polypyrrole Polymer-Incorporated Ag2MoO4Nanocomposite for Detection and Degradation of Environmental Pollutants and Pharmaceutical Drugs

In Situ Synthesis, Characterization, and Catalytic Performance of Polypyrrole Polymer-Incorporated Ag2MoO4Nanocomposite for Detection and Degradation of Environmental Pollutants and Pharmaceutical Drugs

Antibacterial and Anti-Quorum Sensing Studies of Extracellularly Synthesized Silver Nanoparticles from Azadirachta indica (Neem) Leaf Extract

Antibacterial Efficacy of Phytosynthesized Multi‐Metal Oxide Nanoparticles against Drug‐Resistant Foodborne Pathogens

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Product

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In Situ Synthesis, Characterization, and Catalytic Performance of Polypyrrole Polymer-Incorporated Ag₂MoO₄Nanocomposite for Detection and Degradation of Environmental Pollutants and Pharmaceutical Drugs

In Situ Synthesis, Characterization, and Catalytic Performance of Polypyrrole Polymer-Incorporated Ag₂MoO₄Nanocomposite for Detection and Degradation of Environmental Pollutants and Pharmaceutical Drugs