The article delves into the significant environmental challenges posed by the generation of waste organic solvents (WOS) from industries like chemicals, pharmaceuticals, electronics, and coatings. Improper disposal of WOS can lead to severe air, water, and soil pollution, necessitating innovative waste management solutions. One such solution presented is the utilization of hydrogen production from WOS through thermochemical decomposition methods like pyrolysis and gasification, offering dual benefits of environmental conservation and economic value. Furthermore, the article explores the promising role of perovskite materials in photocatalysis, particularly in hydrogen production through sunlight-driven processes like water splitting and CO2 reduction. The unique properties of perovskite, including high activity and efficiency in photocatalytic reactions, make it a valuable candidate for solar energy applications and environmental purification. Ongoing research aims to enhance perovskite photocatalysts' stability, light absorption capabilities, and efficiency, paving the way for novel applications in sustainable energy and environmental remediation. Among the perovskite materials, titanate-based perovskite stands out for its structural stability and potential in photocatalytic applications like hydrogen production and chemical degradation. Efforts to improve its performance under visible light irradiation through composition modifications are underway, aiming to enhance its applicability in a wider range of scenarios. Additionally, the article discusses the use of Pr-based perovskites, particularly PrFeO3, for applications like solar cells and photocatalytic synthesis due to their enhanced activity and stability even under visible light conditions. In conclusion, the article advocates for the integration of innovative technologies like hydrogen production from WOS and the utilization of advanced perovskite photocatalysts in addressing environmental challenges, promoting sustainable practices, and fostering the development of eco-friendly industrial processes.