In this work, a modification of the sugarcane bagasse is performed, in order to obtain organic catalysts. The bagasse analysis is performed using X-ray diffraction (XRD) and Fourier Transformer Infrared Spectroscopy (FTIR), which indicated that characteristic peaks determined its chemical compounds. In addition, Scanning Electron Microscopy (SEM) is used to know the morphology. Finally, a discoloration test is conducted on an azo compound (methylene blue) in an aqueous medium, obtaining an efficiency of 98.6%.

Air quality has been a global problem for several decades and has had several approaches for its mitigation, analysis and quantification. There are several ways and methods to quantify primary and secondary air pollutants. Therefore, the objective of this research was to determine, through SEM-EDS analysis, the elemental chemical characterization and morphology of the compounds present in the tapes of PM10 BAM (Beta Attenuation Mass Monitor) equipment from air quality monitoring campaigns in the city of Poza. Rica, Veracruz in Mexico. The methodology consisted of collecting filter tapes from the air quality monitoring stations used in the evaluation period, sampling and analysis was performed by the SEM/EDS scanning electron microscopy technique. The results allowed identifying in the samples the elemental chemical characterization and morphology of the particles retained in them.

Se llevo a cabo una reacción fotocatalítica para degradar un colorante comercial y obtener los modelos matemáticos para el diseño de un reactor tipo Batch que opere a condiciones ambientales. La reacción se realizó con una solución de 30 ppm de azul de mezclilla y 0.9 mg de catalizador TiO2, a 6 h de reacción se obtuvo el 95% de degradación. La constante cinética de reacción obtenida a partir del perfil de degradación fue de  y tiempo de reacción de 389 min, con estos parámetros se determinaron las medidas para la construcción de un reactor optimizado y que proporcione alto porcentaje de conversión para estudios futuros de degradación de contaminantes por fotocatálisis.