Preparation and characterization of ni-nitrilotriacetic acid bearing Poly(Methacrylic acid) coated superparamagnetic magnetite nanoparticles

2008-02-01
TURAL, Bilsen
KAYA, Murat
Özkan, Necati
Volkan, Mürvet
Stable superparamagnetic magnetite (Fe3O4) nanoparticles were synthesized via co-precipitation in the presence of poly(methacrylic acid) (PMAA) in aqueous solution. The polymer coated Fe3O4 nanoparticles were characterized using transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction, thermal analysis, and vibrating sample magnetometry (VSM) techniques. These measurements reveal the presence of magnetite nanoparticles with a size of approximately 8 nm inside the PMAA matrix. The magnetization value of these superparamagnetic nanoparticles at room temperarure and 7 T was measured as about 40 emu/g. PMAA-coated Fe3O4 nanoparticles were further assembled with Ni-chelate through a reaction between a primary amine-bearing NTA (nitrilotriacetic acid) ligand and carboxy-functional groups of PMAA. NTA-PMAA-coated magnetite nanoparticles were then loaded with nickel ions and characterized using FTIR. The average amount of binded Ni on the surface of the NTA-modified PMAA coated Fe3O4 was calculated as 1.65 +/- 0.3 x 10(-6) mol nickel(II) ions per g of the magnetic particles from the inductively coupled plasma optical emission spectroscopy (ICP-OES) measurements.
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY

Suggestions

Synthesis and Characterization of Surface Modified Fullerene
Kanbur, Yasin; Kucukyavuz, Zuhal (2012-01-01)
Fullerenes were chemically functionalized by using sulphuric acid and nitric acid. The functionalization was done with two different acid ratio. The functionalized nanotubes were characterized with Fourier transform infrared spectroscopy and X-ray photonelectron spectroscopy (XPS), elemental analysis, scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Sulfonation of fullerene increased the electrical conductivity of fullerenes up to 0.027 S/cm. TEM micrographs showed that sulfon...
Preparation and microstructure of sol-gel derived silver-doped silica
Akkopru, Betul; Durucan, Caner (2007-08-01)
Silver-doped silica was prepared by hydrolysis and condensation of tetraethyl orthosilicate (TEOS, Si(OC2H5)(4)) in the presence of a silver nitrate (AgNO3) solution by two different synthesis methods. In the first synthesis route, sol-gel mixtures were prepared using an acid catalyst. In the second synthesis route, silver-doped silica gels were formed by two-step acid/base catalysis. For the same concentration of silver dopant [AgNO3]/[TEOS] = 0.015 acid-catalyzed sol-gel formed a microporous silica with a...
Synthesis and characterization of conducting copolymers of succinic acid bis-(4-pyrrol-1-yl-phenyl) ester and their electrochromic properties
Ertas, M; Çırpan, Ali; Toppare, Levent Kamil (Elsevier BV, 2004-05-07)
A new dipyrrolyl monomer was synthesized via the reaction between 4-pyrrol-1-yl phenol and butanedioyl dichloride. Electrochemical behavior of this monomer, succinic acid bis-(4-pyrrol-1-yl-phenyl) ester (SM) was studied. Homopolymerization was achieved by chemical and constant Current electrolysis methods. Copolymerization of SM with thiophene was performed by constant potential electrolysis in acetonitrile (AN)-tetrabutylammonium tetrafluoroborate (TBAFB) and dichloromethane (DCM)-TBAFB, solvent-electroly...
Synthesis of Photocatalytic Titanium Dioxide Nanopowders Using Different Acid Catalysers
Mohammed, Ahmed Hafedh Mohammed; Park, Jongee; Öztürk, Abdullah (2018-07-17)
Photocatalytic titanium dioxide (TiO2) nanoparticles were synthesized via acid assisted sol-gel process. The effects of different acids namely; acetic acid, hydrochloric acid, and nitric acid on the formation of TiO2 nanoparticles and their photocatalytic properties were investigated. XRD, SEM, and UV-Vis spectrophotometer analyses were performed to examine the physical and chemical characteristics of the nano powders. The results showed that only anatase phase of TiO2nanoparticleswith different crystallite...
Preparation and characterization of zeolite framework stabilized cuprous oxide nanoparticles
Zahmakiran, Mehmet; Özkar, Saim (Elsevier BV, 2009-05-15)
Zeolite framework stabilized copper(I) oxide nanoparticles (4.8 +/- 2.6 nm) were prepared for the first time by using a four step procedure: the ion exchange of Cu(2+) ions with the extra framework Na(+) ions in Zeolite-Y, the reduction of the Cu(2+) ions within the cavities of zeolite with sodium borohydride in aqueous solution, the dehydration of Zeolite-Y with the copper(0) nanoclusters, and the oxidation of intrazeolite copper(0) nanoclusters by O(2) at room temperature. Zeolite stabilized copper(I) oxi...
Citation Formats
B. TURAL, M. KAYA, N. Özkan, and M. Volkan, “Preparation and characterization of ni-nitrilotriacetic acid bearing Poly(Methacrylic acid) coated superparamagnetic magnetite nanoparticles,” JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, pp. 695–701, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30053.