Arsenic Removal from Water by Green Synthesized Magnetic Nanoparticles
作者： Jasmina Nikić , Aleksandra Tubić , Malcolm Watson , Snežana Maletić , Marko Šolić
DOI: 10.3390/W11122520
关键词:
摘要: Magnetite nanoparticles were synthesized by a simple and ecofriendly method using onion peel (MNp-OP) corn silk extract (MNp-CS), in order to develop new low-cost adsorbents for arsenic removal from groundwater. As point of comparison, magnetite also with conventional chemical process (MNp-CO). The antioxidant potential extracts was determined ferric reducing power (FRAP) free radical (DPPH) scavenging assays, including the total phenolics, flavonoids tannins contents. characterised different techniques (Scanning electron microscope/Energy dispersive spectroscopy (SEM/EDS), X-ray diffraction (XRD), Fourier-transform infrared (FTIR) Brunauer-Emmett-Teller (BET) surface area analyzer). adsorption capacity MNp-OP MNp-CS mechanism these novel investigated through kinetic equilibrium experiments their corresponding mathematical models. Characterisation shows high BET specific areas 243 m2/g 261 m2/g, respectively. XRD FTIR analysis confirmed formation presence nanoparticles. on MNp-OP, MNp-CO involves chemisorption, intraparticle external diffusion. Maximal capacities 1.86, 2.79, 1.30 mg/g green synthesis applied cost effective environmentally friendly, results magnetic properties, making them very promising alternative approach treatment contaminated
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