Photocatalytic Bactericidal Performance of LaFeO3 under Solar Light: Kinetics, Spectroscopic and Mechanistic Evaluation

Lanthanum orthoferrites are a versatile class of catalysts. Here, the photocatalytic bactericidal performance LaFeO3 (LF) to inactivate pathogenic microorganisms, i.e., Escherichia coli (E. coli), in water under simulated solar irradiation conditions was investigated. Various competing and contributing factors were covered visualize reaction medium consisting E. K12 cells, organic sub-fractions formed by cell destruction, LF surface. inactivation (SPCI) kinetics revealed highest rate ultrapure as expected, followed distilled (DW), aqueous solution containing anions cations (WM) saline (SS). Characterization released matter achieved UV-vis fluorescence spectroscopic techniques well carbon contents (DOC). Upon SPCI, significant amounts K+ along with protein detected expressing wall destruction lysis. Under specified experimental conditions, presence intracellular inorganic components via lysis, count still present SS, whereas almost all bacteria removed other matrices due various challenging reasons. Based on presented data, SPCI using novel photocatalyst successfully demonstrated an alternative promising method for disinfection purposes.