Online ISSN: 2515-8260

Keywords : Activated carbon

Efficiency Of Silver Nanoparticle Coated Filtering Device For The Control Of Bacterial Pathogen In Ornamental Fish Culturing System

Enilda Rexy Antonykennedy, Sivanadanam Vaithilingam, Serinemichael Michaelbabu, Citarasu Thavisimuthu, Selvaraj Thangaswamy, Mary Josephine Punitha Satniuslas, Michaelbabu Mariavincent

European Journal of Molecular & Clinical Medicine, 2023, Volume 10, Issue 1, Pages 3720-3732

Nanoparticles are of great interest because they are extremely small in size and large in surface-to-volume ratio, which lead to both chemical and physical enhancements in their properties compared to their bulk composition. Tremendous growth in nanotechnology has opened up novel, fundamental, and applied frontiers in material science and engineering, nanobiotechnology, surface-enhanced Raman spectroscopy, and applied microbiology. In this study, the cell free extract of four micro algae were used for the biosynthesis of Ag-NPs. The size, shape and antimicrobial activity were also determined.  The effectiveness of the four silver nanoparticles (Ag-NPs) produced by microalgae and biosynthesized and coated on activated carbon (AC) granules was evaluated in fish culture tanks. The cell-free extract derived from the various species of microalgae influences the size, shape, and antibacterial activity of the silver nanoparticle. Scanning electron microscopy was used to characterise the Ag-NPs/AC that was produced (SEM). The synthesised Ag-NPs/AC had effective antibacterial action against aquatic diseases, and its efficacy may be increased by adding a cell-free extract from the chosen algal species. A silver nanoparticle-coated activated carbon filter fabricated in this study was found to be cost-effective and simple-to-use as an antibacterial water filter in ornamental fish culture tanks

Selective Catalytic Oxidation Of Toluene Using Fronds Of Cocus Nucifera Activated Carbon As Catalyst

V.J. Agnus Nivetha; T. Kasilingam; M. Sivachidambaram; S.K. Jesudoss; R. Sudhakaran; Namitha Lekshmi; R. Meenakshi; S. Chitra8 Chitra

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 7, Pages 6876-6888

Activated carbon (AC) was successfully synthesized by a chemical activation method using as the source of fronds of Cocus nucifera (C. Nucifera). The formation of fronds of C. Nucifera activated carbon (CNF-AC) and its physicochemical properties were investigated systematically. The morphology, surface area and porosity, of the synthesized materials were investigated using X–ray diffraction studies (XRD), HR-SEM, N2 adsorption–desorption (BET) analysis. The excellent catalytic activity of CNF-AC (800 oC) was revealed in the selective oxidation of toluene to the corresponding benzaldehyde with 85% conversion and 87% selectivity. The material was evaluated for the oxidation of toluene in the presence of tert-Butyl hydroperoxide (tBHP) as the oxidizing agent and tetrahydrofuran (THF) solvent. Hence, the obtained results noted that the material was highly active, stable and can be recycled at least four times without a loss of catalytic efficiency. The CNF-AC was carried out in a sealed graphite crucible maintained at a temperature of 800 oC for the transformation of C. Nucifera into porous activated carbon to achieve the excellent catalytic activity.