Doped LaCoO3 perovskite with Fe: A catalyst with potential antibacterial activity

Singh, Chandrakant; Wagle, Aseem; Rakesh, Meeta

doi:10.1016/j.vacuum.2017.06.039

Cited by 27 publications

(14 citation statements)

References 43 publications

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“…Perovskites are one of the exciting collections of substances that show high-temperature superconductivity, pyro-electricity, ferroelectricity, piezoelectricity, and exhibit catalytic and antimicrobial characteristics (Benlahrache et al 2006). Lanthanum containing perovskite oxides was the most commonly considered and confirmed exceptional achievement in various biomedicine and catalysis (Singh et al 2017). Lanthanum-doped NaTaO 3 and MnTiO 3 were investigated for photocatalytic treatments (Wang et al 2015a).…”

Section: Antimicrobial Activitymentioning

confidence: 99%

Engineered magnetic oxides nanoparticles as efficient sorbents for wastewater remediation: a review

et al. 2021

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The rapid urbanization and industrialization is causing worldwide water pollution, calling for advanced cleaning methods. For instance, pollutant adsorption on magnetic oxides is efficient and very practical due to the easy separation from solutions by an magnetic field. Here we review the synthesis and performance of magnetic oxides such as iron oxides, spinel ferrites, and perovskite oxides for water remediation. We present structural, optical, and magnetic properties. Magnetic oxides are also promising photocatalysts for the degradation of organic pollutants. Antimicrobial activities and adsorption of heavy metals and radionucleides are also discussed.

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Section: Antimicrobial Activitymentioning

confidence: 99%

Engineered magnetic oxides nanoparticles as efficient sorbents for wastewater remediation: a review

et al. 2021

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“…Coupling at the B-site leads to the synergetic effect of two different ions, with enhanced electrocatalytic activity. The perovskite oxides activity was associated with redox properties and the high oxygen mobility of the transition metal used [9][10][11]. However, there has been a significant contribution to the investigation of lanthanum-based perovskite oxide (LaMO 3 , M = Co, Fe, Mn) in the application of a bifunctional air cathode [12].…”

Section: Introductionmentioning

confidence: 99%

Transition Metal Oxide-Based Perovskite Structures as a Bifunctional Oxygen Electrocatalysts: Fe Doped LaCoO3 Nanoparticles

Rafi

2019

IJEAT

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In this report, we have investigated lanthanum cobalt iron (LaCo1-xFexO3 ) perovskite nanoparticles synthesized by combining metallic nitrates, deionized water, and citric acid by using sol-gel method and subsequently calcinated at 400 °C for 1h and 900 °C for 7h, respectively. The formation of single-phase perovskite structure is a series of LaCo1-xFexO3 (x = 0, 0.2, 0.4, 0.6, 0.8, 1). The crystal structure, mean particle, and morphology properties of the prepared LaCo1-xFexO3 perovskite oxide nanoparticles were examined by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM). The perovskite structure has shown special performance for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) catalytic activity in alkaline medium. As the combined valence transition metal oxides are rising capable candidates for bifunctional electrocatalysts, the electrochemical performance of the LaCo1- xFexO3 catalyst was thoroughly investigated. Koutecky-Levich results on the ORR polarization curves of all compounds shows that the four-electron pathway is favorable on these perovskite oxides. In this paper, we report B-site Fe doping in perovskite structure is a sufficient strategy to improve ORR and OER catalytic activity for application in metal-air batteries.

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“…Potassium is a well known catalyst for carbon gasification and, consequently, it was used as catalysts for soot combustion [25,26,27,28]. In our previous work LaCoO 3 doped Fe have found to be effective for antibacterial application and the probable mechanism of antimicrobial activity by perovskite material is also discussed [29]. LaCo X Fe 1-X O 3 also have been studied for methane oxidation catalysis [30,31].…”

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confidence: 99%

“…However, application of La based perovskites in the field of bacterial disinfection is limited. LaCo X Fe 1-X O 3, La 0.67 Ca 0.33 MnO 3 / (La 0.5 Eu 0.5 ) 0.67 Ca 0.33 MnO 3 , CaTiO 3 , Ba(Zr x Ti 1-x )O 3 , SrTi 1-x Fe x O 3-1 , also have been used as an anti-microbial agent [29,34,35,36,37].…”

mentioning

confidence: 99%

“…Perovskite metal oxide has been synthesized via various approaches including high temperature solid state reaction [38], co-precipitation method [39], liquid mixed technique [40], wet chemical routine [41], citrate sol-gel method [29] and a few other methods. The inexpensive citrate sol-gel method has a better control over the chemical composition of products to form a catalyst having good surface area and porosity.…”

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A new cost effective potassium based LaFeO3 perovskite for antimicrobial application

Singh¹,

Rakesh²

2019

IJCTR

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The present work is aimed at investigating the antimicrobial activity of Lanthanum Potassium Ferrate (LKFO) nanoparticles against P. aeruginosa-a gram-negative bacteria and S. aureus-a gram-positive bacteria. For comparative study, series of LKFO nanoparticles was prepared and assessed for antibacterial efficacy. The average size of the synthesized nanoparticles varied from 20 nm to 100nm and X-ray diffraction pattern showed the formation of a single phase LKFO of an perovskite crystal structure after annealing the precursor at 800 0 C for 8 hr. The antibacterial activity of synthesised nanoparticles were tested on gram positive and gram negative bacteria according to the radial diffusion assay (RDA) for antibacterial agents. The results indicate promising antibacterial activity of La x K 1-x FeO 3 (x= 0.1, 0.2, 0.3) on both gram-positive and gram-negative bacteria. The presence of potassium in the perovskite catalyst offers substantial benefits for surface mobility and electron donor properties. MIC values for S.aureus and P.aeruginosa, were in the range of 50-400 mg/mL, the enhanced antibacterial activity is attributed to increased doping of potassium (K) stoichiometric ratio of the perovskite nanoparticles. MBC studies showed that the growth of S.aureus and P.aeruginosa could be ceased above 100 mg/mL of La x K 1-x FeO 3 (x= 0.1, 0.2, 0.3). Thus the data supports the use of such nanoparticles as a potential antimicrobial agents specially with regards to water purification technology.

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Doped LaCoO3 perovskite with Fe: A catalyst with potential antibacterial activity

Cited by 27 publications

References 43 publications

Engineered magnetic oxides nanoparticles as efficient sorbents for wastewater remediation: a review

Engineered magnetic oxides nanoparticles as efficient sorbents for wastewater remediation: a review

Transition Metal Oxide-Based Perovskite Structures as a Bifunctional Oxygen Electrocatalysts: Fe Doped LaCoO3 Nanoparticles

A new cost effective potassium based LaFeO3 perovskite for antimicrobial application

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