“Research on the Fabrication of Nanorod-Structured Phorphyrin G-C3N4 As Photocatalyst Materials for the Removal of Cr6+ Ions in an Aqueous Solution”. Vietnam Journal of Catalysis and Adsorption, vol. 13, no. 2, June 2024, pp. 25-30, https://doi.org/10.62239/jca.2024.026.