Sierra M, Borges E, Esparza P, Méndez-Ramos J, Martín-Gil J, Martín-Ramos P. Photocatalytic activities of coke carbon/g-C
3N
4 and Bi metal/Bi mixed oxides/g-C
3N
4 nanohybrids for the degradation of pollutants in wastewater.
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2016;
17:659-668. [PMID:
27877912 PMCID:
PMC5102004 DOI:
10.1080/14686996.2016.1235962]
[Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 09/07/2016] [Accepted: 09/09/2016] [Indexed: 05/24/2023]
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.
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