Photocatalytic activities of coke carbon/g-C3N4 and Bi metal/Bi mixed oxides/g-C3N4 nanohybrids for the degradation of pollutants in wastewater |
| |
| Authors: | Marta Sierra Pedro Esparza Jorge Méndez-Ramos Jesús Martín-Gil |
| |
| Affiliation: | 1. Chemical Engineering Department, University of La Laguna, Santa Cruz de Tenerife, Spain;2. Chemical Department, University of La Laguna, Santa Cruz de Tenerife, Spain;3. Physics Department, University of La Laguna, Santa Cruz de Tenerife, Spain;4. Advanced Materials Laboratory, ETSIIAA, University of Valladolid, Palencia, Spain |
| |
| Abstract: | Different g-C3N4 composite systems (coke carbon/g-C3N4, Bi/Bi2WO6/g-C3N4 and Bi/Bi2MoO6/g-C3N4) have been assessed as photocatalysts for wastewater pollutants removal. The coke carbon/g-C3N4 hybrid, produced by thermal treatment at 550 °C of a composite made from melamine cyanurate and coke, only showed activity under UV-light irradiation. On the other hand, inorganic Bi spheres/Bi mixed oxides/g-C3N4 nanohybrids (Bi/Bi2WO6/g-C3N4 and Bi/Bi2MoO6/g-C3N4 composites), produced by thermal reduction of Bi2WO6 or Bi2MoO6 by g-C3N4, exhibited a remarkable red-shift, up to 620 nm, and allowed the visible-light driven degradation of the contaminant, albeit in combination with some adsorption. |
| |
| Keywords: | Carbon nitride coke bismuth mixed oxides photocatalysis wastewater pollutants |
|
|
