Low concentration hydrogen peroxide decomposition inside a minichannel with annual silver catalyst

Suwathy, R.; Balaji, N.S. Anirudh; Haribalaji, R; Venkatesan, M.

doi:10.1016/j.matpr.2021.10.490

Cited by 1 publication

(2 citation statements)

References 8 publications

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“…Conventional antibiotic discs Gentamycin (GEN); 10 μg/ml; 6.0 mm diameter), was chosen to determine the performance of the tested Ag-HA nanocomposite. The minimum inhibitory concentrations (MIC) of the tested samples which have the highest antimicrobial activity was determined by The serial dilutions method of Luria–Bertani (LB) medium 37 . For these determinations, The synthesized Ag-HA nanocomposite, and HA (beginning with concentration = 20.0 μg/ml) were applied.…”

Section: Methodsmentioning

confidence: 99%

“…HA structure can be customized according to the desired application 36 . Silver is well known catalyst for hydrogen peroxide degradation 37 . The incorporation of silver into the HA matrix has the potential to deliver novel catalytic activity via superior synergistic effect with H 2 O 2 ; in addition Ag ions can secure novel antimicrobial properties 38 – 40 .…”

Section: Introductionmentioning

confidence: 99%

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Enhanced photocatalytic and antibacterial activities of novel Ag-HA bioceramic nanocatalyst for waste-water treatment

Elbasuney,

El-Khawaga,

Elsayed

et al. 2023

Sci Rep

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Hydroxyapatite (HA), the most common bioceramic material, offers attractive properties as a catalyst support. Highly crystalline mono-dispersed silver doped hydroxyapatite (Ag-HA) nanorods of 60 nm length was developed via hydrothermal processing. Silver dopant offered enhanced chemisorption for crystal violet (CV) contaminant. Silver was found to intensify negative charge on the catalyst surface; in this regard enhanced chemisorption of positively charged contaminants was accomplished. Silver dopant experienced decrease in the binding energy of valence electron for oxygen, calcium, and phosphorous using X-ray photoelectron spectroscopy XPS/ESCA; this finding could promote electron–hole generation and light absorption. Removal efficiency of Ag-HA nanocomposite for CV reached 88% after the synergistic effect with 1.0 mM H2O2; silver dopant could initiate H2O2 cleavage and intensify the release of active ȮH radicals. Whereas HA suffers from lack of microbial resistance; Ag-HA nanocomposite demonstrated high activity against Gram-positive (S. aureus) bacteria with zone of inhibition (ZOI) mm value of 18.0 mm, and high biofilm inhibition of 91.1%. Ag-HA nanocompsite experienced distinctive characerisitcs for utilization as green bioceramic photocatalyst for wastewater treatment.

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Section: Methodsmentioning

confidence: 99%