title: Studies on the efficient dual performance of Mn1-xNixFe2O4spinel nanoparticles in photodegradation and antibacterial activity.
abstract: The present work describes the successful synthesize of spinel magnetic ferrite Mn1-xNixFe2O4(x=0.0, 0.1, 0.2, 0.3, 0.4 & 0.5) nanoparticles via a simple microwave combustion method which was then evaluated for its photocatalytic activity in the degradation of indigo carmine (IC) synthetic dye, a major water pollutant. Our results reveal that the synthesized of Ni2+doped MnFe2O4nanoparticles possess well-crystalline pure cubic spinel phase, exhibit excellent optical and magnetic properties. Further, the photocatalytic performance of the synthesized nanoparticles at different concentration ratios of Ni2+ions was monitored by photocatalytic degradation of indigo carmine synthetic dye under UV (λ=365nm) light irradiation. In order to get maximum photocatalytic degradation (PCD) efficiency, we have optimized various parameters, which include catalyst dosage, initial dye concentration, pH and Ni2+dopant content. It was found that the reaction was facilitated with optimum catalyst dose of 50mg/100mL, high dye concentrations of 150mg/L and acidic pH and among all the synthesized samples, Mn0·5Ni0.5Fe2O4exhibit superior performance of photocatalytic activity on the degradation of indigo carmine synthetic dye. These results highlighted the potential use of effective, low-cost and easily available photocatalysts for the promotion of wastewater treatment and environmental remediation. In addition, the antibacterial activity of spinel magnetic Mn1-xNixFe2O4nanoparticles against two Gram positive bacteria (Staphylococcus aureus and Bacillus subtilis) and two Gram negative bacteria (Pseudomonas aeruginosa and Escherichia coli) was also examined. Our antibacterial activity results are comparable with the results obtained using the antibiotic, streptomycin.
authors: Catalysis & Nanomaterials Research Laboratory, Department of Chemistry, Loyola College (Autonomous), Chennai 600 034, India.
authors: S K
authors: SK
authors: Jesudoss
authors: Catalysis & Nanomaterials Research Laboratory, Department of Chemistry, Loyola College (Autonomous), Chennai 600 034, India. Electronic address: jjvijaya78@gmail.com.
authors: J Judith
authors: JJ
authors: Vijaya
authors: Materials Division, School of Advanced Sciences, Vellore Institute of Technology (VIT) University, Chennai Campus, Chennai 600 127, India.
authors: L John
authors: LJ
authors: Kennedy
authors: Catalysis & Nanomaterials Research Laboratory, Department of Chemistry, Loyola College (Autonomous), Chennai 600 034, India.
authors: P Iyyappa
authors: PI
authors: Rajan
authors: Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
authors: Hamad A
authors: HA
authors: Al-Lohedan
authors: Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
authors: R Jothi
authors: RJ
authors: Ramalingam
authors: UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology Laboratories, College of Graduate Studies, University of South Africa (UNISA), Muckleneuk Ridge, P O Box 392, Pretoria, South Africa; Nanosciences African Network (NANOAFNET), Materials Research Department (MSD), iThemba LABS-National Research Foundation (NRF), 1 Old Faure Road, 7129, P O Box 722, Somerset West, Western Cape Province, South Africa.
authors: K
authors: K
authors: Kaviyarasu
authors: Department of Physics, College of Science, University of Bahrain, PO Box 32038, Bahrain.
authors: M
authors: M
authors: Bououdina
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects; D018360:Crystallography, X-Ray; D049449:Luminescence; D008280:Magnetics; D053768:Metal Nanoparticles / Q000737:chemistry*; D008826:Microbial Sensitivity Tests; D008855:Microscopy, Electron, Scanning; D010782:Photolysis; D014961:X-Ray Diffraction
chemical_list: D000900:Anti-Bacterial Agents
keywords: Antibacterial properties; Indigo carmine; Magnetic properties; Optical properties; Photo degradation