Application of Perovskite Oxides for Removal of Emerging Organic Pesticides

Abstract

Pesticide residues in water bodies and soil are increasing at an alarming rate and are becoming a serious health hazard. Thus, efficient remediation technologies are necessary to convert these pollutants into their non-toxic forms. Perovskite oxides (POs) are a class of semiconductors well known for their photocatalytic activity and have drawn a lot of attention due to their numerous synthesis mechanisms, facile surface modification, abundance, and inexpensive cost. They possess many advantages, such as abundant oxygen vacancies, easily tunable structural morphology, stable crystal state, highly active metal sites, and a wide photo response range. Their thermal stability and catalytic properties make POs suitable candidates for the efficient cleanup of environmental pollutants. This chapter aims to provide an overview of the applications of POs towards pesticide remediation through adsorption and photocatalytic degradation. Current developments in the application of inorganic POs, such as lanthanum-based POs, rare earth metal-based POs, composites of POs and metal oxide nanoparticles, and metal-doped POs for pesticide removal are highlighted in this chapter. A detailed study of the photocatalytic mechanism of perovskite oxides, their composites, and their photocatalytic characteristics is also summarized in this chapter. © 2026 by Apple Academic Press, Inc.