Buscar

Estamos realizando la búsqueda. Por favor, espere...

 Detalle_Publicacion

Removal of aniline and benzothiazole wastewaters using an efficient MnO2/GAC catalyst in a photocatalytic fluidised bed reactor

Abstract: This work presents an efficient method for treating industrial wastewater containing aniline and benzothiazole, which are refractory to conventional treatments. A combination of heterogeneous photocatalysis operating in a fluidised bed reactor is studied in order to increase mass transfer and reduce reaction times. This process uses a manganese dioxide catalyst supported on granular activated carbon with environmentally friendly characteristics. The manganese dioxide composite is prepared by hydrothermal synthesis on carbon Hydrodarco® 3000 with different active phase ratios. The support, the metal oxide, and the composite are characterised by performing Brunauer, Emmett, and Teller analysis, transmission electron microscopy, X-ray diffraction analysis, X-ray fluorescence analysis, UV-Vis spectroscopy by diffuse reflectance, and Fourier transform infrared spectroscopy in order to evaluate the influence of the metal oxide on the activated carbon. A composite of MnO2/GAC (3.78% in phase a-MnO2) is obtained, with a 9.4% increase in the specific surface of the initial GAC and a 12.79 nm crystal size. The effect of pH and catalyst load is studied. At a pH of 9.0 and a dose of 0.9 g L-1, a high degradation of aniline and benzothiazole is obtained, with an 81.63% TOC mineralisation in 64.8 min.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Autoría: Ferreiro C., Villota N., Lombraña J.I., Rivero M.J., Zúñiga V., Rituerto J.M.,

 Fuente: Materials, 2021, 14(18), 5207

Editorial: MDPI

 Fecha de publicación: 10/09/2021

Nº de páginas: 34

Tipo de publicación: Artículo de Revista

 DOI: 10.3390/ma14185207

ISSN: 1996-1944

Autoría

FERREIRO SANTISO, CRISTIAN

NATALIA VILLOTA SALAZAR

LOMBRAÑA ALONSO, JOSÉ IGNACIO

ZÚÑIGA SÁNCHEZ, VERÓNICA

RITUERTO LÓPEZ DE ECHEZARRETA, JOSÉ MIGUEL