Producción Científica Profesorado

Optimization of microwave-solvothermal synthesis of Fe3O4 nanoparticles. Coating, modification, and characterization



Alvarez Romero, Giaan Arturo

2018

Optimization of microwave-solvothermal synthesis of Fe3O4 nanoparticles. Coating, modification, and characterization, Hernández-Hernández, A.A., Álvarez-Romero, G.A., Castañeda-Ovando, A., Mendoza-Tolentino, Y., Contreras-López, E., Galán-Vidal, C.A., Páez-Hernández, M.E., Materials Chemistry and Physics, 205 (2018) 113-119, DOI: 10.1016/j.matchemphys.2017.11.009


Abstract


In this research, magnetite nanoparticles were synthetized by the microwave-solvothermal method. The parameters related to this method were evaluated with: 1) the Plackett-Burman design, in order to evaluate the influence of the holding time [th] and the gradient time [tg] (reaction times) in the synthesis percent yield; and 2) the Box-Behnken design (BBD), selected in order to reduce the number of experimental experiences. In this last, the ammonium acetate amount (mmol) [th], and the microwave system temperature were optimized in order to achieve the smallest magnetite nanoparticles. Microwave assisted coating and modification with TMSPT/AMT were performed to the synthetized nanoparticles, in order to avoid degradation. The response variable considered for optimization of the synthesis was the nanoparticle's size, which was estimated by X-ray diffraction. Temperature and th resulted to be the most important parameters affecting the nanoparticle's size. The BBD allowed to obtain nanoparticle sizes between 10 and 32 nm. Polynomial validation was performed with confirmatory experiments considering the following conditions: T = 255 C, th = 10 min, tg=7 min, ammonium acetate amount = 4.55 mmol, Fe(III) = 2 mmol, sodium citrate amount = 1.55 mmol and ethylene glycol = 6 mL. The obtained nanoparticles, with a size of 14 nm, were characterized by FT-IR, X-RD, SEM, and STEM.



Producto de Investigación




Artículos relacionados

Sequential Injection Spectrophotometric Determination of Diclofenac in Urine and Pharmaceutical Form...

Chemical studies of anthocyanins: A review

Development of a Chloride Ion-Selective Solid State Sensor Based on Doped Polypyrrole-Graphite-Epoxy...

Synthesis and crystal structures of cis-palladium(II) and cis-platinum(II) complexes containing dipy...

Electrochemical and AFM characterization of the electropolimerization of pyrrole over a graphiteepox...

Multicommutated Anodic Stripping Voltammetry at Tubular Bismuth Film Electrode for Lead Determinatio...

Determination of glucose by flow injection analysis with amperometric detection at Fe(III)-(tris(3,5...

Prevalence and Antimicrobial Resistance Patterns of Salmonella from Different Raw Foods in Mexico

Influence of the Cation Nature of the Sulphate Salt on the Electrochemical Synthesis of Sulfate-Dope...

Development of a novel composite sensor based on doped pyrrole selective to nitrate ions