Preparation of Nickel Ferrite/Carbon Nanotubes Composite by Microwave Irradiation Technique for Use as Catalyst in Photo-Fenton Reaction
Source abstract
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.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Magnetic Properties and Synthesis of Ferrites · Nanomaterials for catalytic reactions · Advanced Photocatalysis Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Universidade Federal de Santa Maria, Brazil
Universidade Federal do Pampa, Brazil
Universidade Federal do Rio Grande do Norte, Brazil
References (33)
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