The synthesis and characterisation of magnetic nanoparticles and their interaction with a zinc phthalocyanine

Antunes, Edith; Rapulenyane, Nomasonto; Ledwaba, Mpho; Litwinski, Christian; Chidawanyika, Wadzanai; Nyokong, Tebello

doi:10.1016/j.inoche.2012.12.010

Cited by 14 publications

(13 citation statements)

References 22 publications

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“…The most intense peak observed in the tetrahedral structure of metal (tetrahedral‐O) is the stretching vibration (Mocta‐O) peaks at ν 1 = 603 cm −1 . The peak observed in lower intensity is octahedral metal stretching vibration (Mocta‐O) at ν 2 = 490 cm −1 .…”

Section: Resultsmentioning

confidence: 99%

“…This solution was stirred under strong ultrasonic agitation while heating solution to 80°C and bubbling N 2 gas. Next, this iron solution source was waited autoclave to 120°C for 15 h. The black precipitate was separated by centrifugation and washed with distilled water and anhydrous ethanol . The obtained Fe 3 O 4 crystals were dried under vacuum at 80°C overnight.…”

Section: Methodsmentioning

confidence: 99%

“…NiCl 2 .4H 2 O, FeCl 3 .6H 2 O (1:4 ratio, respectively) and CTAB were dissolved in about 50 ml deionized water, and stirring this solution under strong ultrasonic agitation while heating solution to 80°C and bubbling N 2 gas. Next, this iron solution was autoclaved to 120°C for 15 h. Black NiFe 2 O 4 particles were decanted by permanent magnet and cleaned by deionized water . The obtained Fe 3 O 4 crystals were dried under vacuum at 80°C overnight.…”

Section: Methodsmentioning

confidence: 99%

“…Coating the polybenzimidazoles on surface of magnetic nanoparticles was carried more homogeneously with using the high dispersion and the solving high impact of ILs. In addition, polybenzimidazole structures with electrical conductivity of 10 −5 S/cm and thermal degradation is in the range of 450–700°C and especially due to the IL environment that contains imidazolium salt simultaneous synthesizing on magnetic nanoparticles significant increase were observed in the electrical conductivity of the composite structure.…”

Section: Introductionmentioning

confidence: 99%

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High‐performance conducting polybenzimidazoles nanohybrids

et al. 2017

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The use of ionic liquids (IL) and nanoparticles in polymeric membranes is known to increase the electrochemical performance for heavy metal ions must be eliminated from water resources. In this study at first, NiFe2O4 and Fe3O4 nanoparticles were obtained using cationic surfactants cetyltrimethylammonium bromide (CTAB) at 120°C in autoclave. Hybrid structure of this nanoparticles obtained by the method known as the hydrothermal was prepared with polybenzimidazole (Poly[2,21‐(p‐phenylene)‐5,51‐bis(benzimidazole)]: PBI1 and (Poly[2,21‐(p,p1‐diphenylene)‐5,51‐bis(benzimidazole)]: PBI2) in IL (1‐butyl‐3‐methylimidazolium bromide [BMIM]BF4: IL) environment. For the acquisition of hybrid nanoparticles with polybenzimidazole, polycondensation reaction of hydroxamoyl chloride (Terephtalohydroxamoyl chloride and 4,41‐Bis(phenylhydroxamoyl chloride) and 3,31‐diaminobenzidine monomers in IL environment was performed without acid media. The increase in proton conduction in comparison to the PBI membranes were observed due to the presence of ILs in PBI‐ILs blend membranes. These nanohybrids were characterized by the FT‐IR, XRD, TEM, EDX, at different temperature, vibrating sample magnetometer, and SEM analyses. Fourier transform infrared spectroscopy, and X‐ray diffraction, and the hybrid microspheres were found uniformly dispersed in the polymer matrices without any agglomeration. The influence of [BMIM]BF4 as IL on the structure, electrical conductivity and magnetic properties of PBI‐NiFe2O4‐IL nanocomposite were studied in detail. TGA analyses were performed for thermal resistance of nanoparticles and PBI hybrid structure. Tinitial, Tmax, and Tlast decomposition temperatures were determined, initial decomposition temperature was obtained in the range of 420–600°C for hybrid structures. POLYM. COMPOS., 39:4372–4385, 2018. © 2017 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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High‐performance conducting polybenzimidazoles nanohybrids

et al. 2017

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“…The ideal PS should have good solubility in physiological solution, high cellular uptake ability, high ROS generation ability, high photoactivity but low dark toxicity and strong absorption in the phototherapeutic window (600-900 nm) [5,8]. Phtalocyanine (Pc) is considered as a promising PS for its high generation ability of reactive oxygen species, extraordinary stability, high phototoxicity and low dark toxicity, and strong absorption in phototherapeutic window [9][10][11].…”

mentioning

confidence: 99%

Zwitterionic phthalocyanine zinc (II) synthesis, and photodynamic activity comparison with nonionic and cationic phthalocyanine

Gui

Zhang

Wang

et al. 2017

Inorganic Chemistry Communications

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A self-assembly of graphene oxide@Fe3O4/metallo-phthalocyanine nanohybrid materials: synthesis, characterization, dielectric and thermal properties

et al. 2017

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In this work, we report the synthesis of novel inorganic-organic hybrid nanomaterials (GO@Fe 3 O 4 /CuPc) and GO@Fe 3 O 4 /ZnPc) consisting of sheets of graphene oxide (GO) decorated by iron oxide nanoparticles (Fe 3 O 4 ), the whole heterostructure functionalized with metallo-phthalocyanines (MPc, M:Cu or Zn). First the synthesis of nanomaterial (GO@Fe 3 O 4 ) was prepared by hydrothermal self-assembly process through the mixture of graphene oxide and Fe ?2 /Fe ?3 salt solution. The metallo-phthalocyanines anchorage on the surface of nanosystem was lately performed by facile and effective ultrasonication method. The structure, composition and morphology of nanohybrids and intermediates were investigated by Fourier transform infrared spectroscopy, X-ray diffraction, thermogravimetric analysis, differential scanning calorimetry, UV-visible spectroscopy, scanning and transmission electron microscopy and impedance spectroscopy. All the results suggested that iron-based nanoparticles were successfully deposited onto graphene oxide sheet networks in the form of Fe 3 O 4 , forming nanospheres, decreasing in lattice defects of the GO sheets and dramatically increasing the dielectric properties of nanosystems. Nanomaterials presented saturation magnetization in the 52-58 emu/g and superparamagnetic

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The synthesis and characterisation of magnetic nanoparticles and their interaction with a zinc phthalocyanine

Cited by 14 publications

References 22 publications

High‐performance conducting polybenzimidazoles nanohybrids

High‐performance conducting polybenzimidazoles nanohybrids

Zwitterionic phthalocyanine zinc (II) synthesis, and photodynamic activity comparison with nonionic and cationic phthalocyanine

A self-assembly of graphene oxide@Fe3O4/metallo-phthalocyanine nanohybrid materials: synthesis, characterization, dielectric and thermal properties

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