Construction of CaTiO3/g-C3N4 Heterostructure for Boosting Photodegradation of Indigo Carmine under Visible Light Illumination

Authors : Özlem TUNA

Pages : 1-9

Doi:10.7240/jeps.1062072

View : 15 | Download : 9

Publication Date : 2023-03-30

Article Type : Research Paper

Abstract :A series of graphitic carbon nitride insert ignore into journalissuearticles values(CN); modified CaTiO3 insert ignore into journalissuearticles values(CTO); composites were synthesized and applied to photodegradation of indigo carmine insert ignore into journalissuearticles values(IC); The CTO/CNinsert ignore into journalissuearticles values(III); heterostructure exhibited the highest photocatalytic performance for IC degradation under visible light irradiation. The degradation rate constants of IC by the optimal sample were 1.69 and 10.50 times that of CN and CTO, respectively. This could be attributed to the effective separation of photoexcited carriers easier. The photocatalyst dosage increased the removal efficiency, while the initial dye concentration negatively affected the IC degradation rate. Under acidic atmosphere, the catalyst showed superior degradation rate. Furthermore, the active substance insert ignore into journalissuearticles values(•O2 ¯); was the major active substance for IC photodegradation. On this basis, the possible photocatalytic reaction mechanism of CTO/CNinsert ignore into journalissuearticles values(III); sample was proposed. In addition, the composite achieved considerable performance in ions-included water bodies, namely tap water and drinking water. This study provides a promising and stable photocatalyst as a graphitic carbon nitride modified with calcium-based perovskite for dye removal.
Keywords : CaTiO3, grafit karbon nitrür, indigo karmin, fotakatalizör