.

ISSN 2063-5346
For urgent queries please contact : +918130348310

OXYGEN DOPED GRAPHITIC CARBON NITRIDE PHOTOCATALYSTS: PHYSICAL-CHEMICAL AND PHOTOCATALYTIC PROPERTIES

Main Article Content

Bakhromova I.A1, Kattaev N.T1, Akbarov Kh.I1, Sidrasulieva G.B
» doi: 10.31838/ecb/2023.12.3.130

Abstract

Background. Using the photocatalytic activity of graphitic carbon nitrides in the visible light field, it is possible to determine the reaction order of the destruction of organic dyes. Patient and Method: The concentration of intermediate and final substances obtained by photocatalytic destruction of rhodamine B dye was measured by spectrophotometric method. Results: Oxygen-doped graphitic carbon nitride was synthesized by the thermal polycondensation method. Their infrared spectrum, XRD analysis, surface structure morphology, thermal analysis, and photocatalytic properties were studied. The bandgap was 2.64 eV in O-g-C2N3. The destruction of rhodamine B in the presence of oxygen-doped graphitic carbon nitride (O-g-C2N3) was studied under the influence of ultraviolet, visible and sunlight. The photocatalytic destruction of rhodamine B followed a first-order reaction. Conclusion: Oxygen doped (O-g-C3N4 O-g-C2N3) photocatalysts were synthesized by thermal polycondensation method from dicyandiamide. The obtained new materials (O-g-C3N4, O-g-C2N3) were used for the photocatalytic decomposition of rhodamine B under the influence of visible, ultraviolet (UV) and sunlight. The new materials showed high photocatalytic activity under the influence of sunlight and degraded organic dyes up to 97%.

Article Details