Effect of copper substitution on the structural, morphology, and magnetic properties of La0.7Ba0.1Sr0.2Mn1-xCuxO3 (x = 0, 0.10) manganite

Yudharma, G.; Kurniawan, Budhy; Rahman, I. K.; Razaq, Dhawud Sabilur

doi:10.1063/1.5132438

Cited by 1 publication

(1 citation statement)

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“…This is due to differences in the ionic radii of Ce 3+ , Ce 4+ , and Cu 2+ , which are 0.114, 0.097, and 0.073 nm, respectively. The smaller ionic radius of Cu 2+ ions may cause the substitution of Cu 2+ for Ce 4+ within the crystal lattice of CeO 2 [33][34]. Moreover, the very low quantity of copper in Ce 0.9 Cu 0.1 O makes the detection of a CuO peak impossible.…”

Section: Co 2 Adsorption Experimentsmentioning

confidence: 99%

Antibacterial Activity and CO<sub>2</sub> Capture by Cerium-Copper Mixed Oxides Prepared Using a Co-precipitation Method

Kamonwannasit,

Futalan,

Khemthong

et al. 2024

Indones. J. Chem.

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Indoor air pollution is comprised of fine particles, bacteria, fungi, and hydrocarbons. Acceptable indoor air quality is maintained using several layers of air filters. Alternative materials with the capacity to remove CO2 from indoor air with antibacterial efficacy need to be further investigated. Mixed oxides of Ce1.0-xCuxO (x = 0.0, 0.1, 0.5, 0.9, 1.0) were synthesized using a co-precipitation method. Characterization studies revealed that single oxides of Ce1.0O and Cu1.0O were of cubic fluorite and monoclinic crystal structures, respectively. Results also show that Ce0.1Cu0.9O and Ce0.5Cu0.5O were composites. All samples were classified as mesoporous materials with a type IV isotherm, and the main functional group was identified as Ce–O–Cu. The surface area of Ce0.5Cu0.5O was 17.63 m2/g. The highest CO2 adsorption capacity was 5.72 cm3/g for Ce0.5Cu0.5O. Moreover, the greatest antibacterial activity against B. subtilis (12.22 mm inhibition zone) and P. aeruginosa (7.34 mm inhibition zone) was observed for Ce0.5Cu0.5O at a 30 mg/L concentration. The synthesis of mixed Ce1.0-xCuxO oxides along with their satisfactory antibacterial performance and CO2 adsorption capacity, indicate its potential use as an alternative material for inclusion in indoor air filters.

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Section: Co 2 Adsorption Experimentsmentioning

confidence: 99%