Preparation of Nickel Ferrite/Carbon Nanotubes Composite by Microwave Irradiation Technique for Use as Catalyst in Photo-Fenton Reaction

Abstract

Nickel ferrite/multi-walled carbon nanotubes (NiFe 2 O 4 /MWCNTs) composite has been rapidly synthesized via microwave irradiation technique. The structural properties of the product was investigated by X-ray diffraction (XRD), N 2 adsorption/desorption isotherms, thermogravimetric analysis (TGA), Raman spectroscopy and, scanning electron microscopy (SEM). Catalytic behavior of the composite material on the advanced photo-Fenton degradation of Amaranth dye was evaluated. The synthesis conditions employed on the microwave system were: temperature (235 °C), power (500 W), pressure (600 psi) and irradiation time (30 min). Characterization results showed the formation of hybrid material, containing a predominantly microporous structure, with surface area and total pore volume of 54 m 2 g -1 and 0.2249 cm 3 g -1 , respectively. The composite exhibited higher catalytic activity compared to the pure NiFe 2 O 4 , reaching 100% of decolorization at 60 min of reaction, which can be attributed to a synergism between NiFe 2 O 4 and MWCNTs. Therefore, NiFe 2 O 4 /MWCNTs composite can be used as a promising photo-Fenton catalyst to degrade Amaranth dye from aqueous solutions.

Nickel -doped iron oxide nanoparticle-conjugated porphyrin interface (porphyrin/Fe2O3@Ni) for the non-enzymatic detection of dopamine from lacrimal fluid

“…These peaks correspond to the typical pattern of nickel ferrite. 43,44 Similarly, the I D /I G ratio was found to be 0.14, which was due to pyrolysis that resulted in the removal of unreacted species and phytochemicals inducing structural defects. Conversely, the I D /I G ratio was shifted to 0.49 after the immobilization of Fe 2 O 3 @Ni in the porphyrin interface.…”

Microwave-Assisted Functionalization of Multi-Walled Carbon Nanotubes for Biosensor and Drug Delivery Applications

“…In this method, copper acetate was converted to copper oxide and subsequently deposited on MWCNTs, under microwave irradiation, to produce tenorite-decorated CNTs (CuO-CNTs), which had a high loading capacity and excellent dispersion, compared to non-modified MWCNTs. Rigo et al [ 64 ] developed an effective, surface-modified nickel ferrite MWCNT ( Figure 9 c)-based nanocarrier, using a microwave absorption technique. In this reaction scheme, nickel ferrite and iron nitrate were dissolved in ethyl alcohol, and the resulting MWCNTs were dissolved in the same solvent and mixed properly for the formation of the suspension and stirred for 24 h at room temperature.…”

A Comprehensive Study of Pristine and Calcined f-MWCNTs Functionalized by Nitrogen-Containing Functional Groups

“…Thus, CNTs can be considered as a hexagonal array of carbon atoms wound in a hollow cylinder in two ways: single-walled nanotubes (SWCNTs) and multi-walled (MWCNTs) nanotubes [ 1 ]. These materials are characterized in particular by (i) outstanding mechanical and structural properties; (ii) good surface to area ratio; (iii) unique electrical conductivity; (iv) chemical and thermal stability, making them attractive components for nanohybrids [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ]. Nevertheless, CNTs, usually in their pristine form, tend to aggregate by forming agglomerates combined with van der Waals interactions [ 16 ].…”

“…Understanding the impact of the functionalization type on the various properties of CNTs is one of the key factors for their potential future applications. Keeping in mind the development of nanotechnology, the electronic and magnetic properties of CNTs could be exploited, for example, in the design and synthesis of nanocomposite materials [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ]. In general, MWCNTs are promising candidates for building blocks to build nanocomposites.…”