Heavy-metal detectors based on modified ferrite nanoparticles

• Published in: Beilstein journal of nanotechnology Vol. 9; no. 1; pp. 762 - 770
• Main Authors: Klekotka, Urszula, Wińska, Ewelina, Zambrzycka-Szelewa, Elżbieta, Satuła, Dariusz, Kalska-Szostko, Beata
• Format: Journal Article
• Language: English
• Published: Germany Beilstein-Institut zur Föerderung der Chemischen Wissenschaften 2018; Beilstein-Institut
• Subjects: Absorption spectroscopy; Adsorption; Anhydrides; Atomic absorption analysis; Atomic beam spectroscopy; Cadmium; Copper; Efficiency; Electron microscopy; Energy measurement; ferrite nanoparticles; Ferrites; Food; Fourier transforms; Full Research Paper; heavy metal detection; Heavy metals; Lead; Magnetite; Manganese; materials characterization; Metal detectors; Mossbauer spectroscopy; Nanoparticles; Nanoscience; Nanotechnology; NMR; Nuclear magnetic resonance; Phthalic anhydride; Surface chemistry; water purification; X-ray diffraction; Poland; Germany; water purification; materials characterization; ferrite nanoparticles; heavy metal detection
• ISSN: 2190-4286; 2190-4286
• DOI: 10.3762/bjnano.9.69

In this work, we analyze artificial heavy-metal solutions with ferrite nanoparticles. Measurements of adsorption effectiveness of different kinds of particles, pure magnetite or magnetite doped with calcium, cobalt, manganese, or nickel ions, were carried out. A dependence of the adsorption efficiency on the composition of the inorganic core has been observed. Ferrites surfaces were modified by phthalic anhydride (PA), succinic anhydride (SA), acetic anhydride (AA), 3-phosphonopropionic acid (3-PPA), or 16-phosphohexadecanoic acid (16-PHDA) to compare the adsorption capability of the heavy metals Cd, Cu and Pb. The obtained nanoparticles were structurally characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and Mössbauer spectroscopy. The amounts of Cd, Cu and Pb were measured out by atomic absorption spectroscopy (AAS) and energy dispersive X-ray (EDX) as comparative techniques. The performed study shows that SA linker appears to be the most effective in the adsorption of heavy metals. Moreover, regarding the influence of the composition of the inorganic core on the detection ability, the most effective ferrite Mn Fe O was selected for discussion. The highest heavy-metal adsorption capability and universality was observed for SA as a surface modifier.