Open this publication in new window or tab >>Show others...
2023 (English)In: Environmental Science and Pollution Research, ISSN 0944-1344, E-ISSN 1614-7499, Vol. 30, no 31, p. 76515-76527Article in journal (Refereed) Published
Abstract [en]
One of the materials that has recently been used to remove environmental pollution from industrial effluents with photocatalytic technology is cobalt chromate (CoCr2O4) nanoparticles. An effective way to improve the photocatalytic properties of materials is to composite them with other photocatalysts to prevent recombination of electron-holes and accelerate the transfer of oxidation/reduction agents. Graphitic carbon nitride (g-C3N4) is an excellent choice due to its unique properties. In this research, CoCr2O4 and its composite with g-C3N4 (5, 10, and 15%) were synthesized by polyacrylamide gel method and characterized by X-ray diffraction, scanning electron microscopy, FTIR, UV–Vis spectroscopy techniques. The photocatalytic behavior of synthesized nanoparticles was investigated in the degradation process of methylene blue dye. The results showed that the composite samples have higher efficiency in photocatalytic activity than the pure CoCr2O4 sample. Using CoCr2O4-15 wt%g-C3N4 nanocomposite, after 80 min, methylene blue was completely degraded. The mechanism of degradation by CoCr2O4-g-C3N4 nanocomposite was the superoxide radical produced by the reaction of electrons with oxygen absorbed on the catalyst surface, as well as optically produced holes directly.
Place, publisher, year, edition, pages
Springer Nature, 2023
Keywords
C N 3 4, Cobalt chromate, CoCr O /g-C N 2 4 3 4, Nanomaterials, Photocatalyst, Polyacrylamide
National Category
Water Engineering Water Treatment Environmental Engineering
Identifiers
urn:nbn:se:kth:diva-333035 (URN)10.1007/s11356-023-27807-3 (DOI)000995355800001 ()37233934 (PubMedID)2-s2.0-85160307057 (Scopus ID)
Note
QC 20230725
2023-07-252023-07-252025-02-10Bibliographically approved