Evaluación del tiempo de envejecimiento sobre el área de recubrimiento de fibra vegetal con magnetita

Abstract

In the present Curricular Integration Work, the area of plant fiber coating was evaluated according to the aging time of magnetic patricles. The literature mentions the possibility of supporting magnetic particles in synthetic and other plant fibers from abroad. In this research, cabuya fiber (Furcraea andina) from an adult specimen was used, which was obtained through a purely manual procedure. Subsequently, magnetite was synthesized by precipitation in the presence of the processed fiber, for this iron (II) and (III) salts were used un an inert atmosphere, in addition, the temperature and revolution factors were controlled as recommended by literature. At the end of the synthesis, the solutions were stored according to the desired aging time (8, 16, 32, and 64 hours). After the aging time, the fiber was extracted, washed, and stored in glass jars. The main results were color changes (from whitish to dark) and texture, characterization was performed with infrared spectroscopic techniques and X – Ray scattering, optical microscopy, and electron scanning. They identified the presence of iron on the fiber’s surface and quantified each sample´s coating area. With analysis of variance it is concluded that the coating area is directly affected by the aging time, that is, the longer the aging time, the greater the presence of iron on the surface of the fiber, this confirms the possibility of supporting magnetite in vegetable fiber. As a relatively new research, it is recommended to expand the characterization and analyze other properties so that the compound obtained can be used in the treatment of contaminated water.