Development of Lead-free Halide Perovskite-based Materials for Efficient Photocatalytic CO2 Reduction to CH4

This thesis explores the development of lead-free halide perovskites for converting carbon dioxide (CO2) into usable energy. The research focuses on improving photocatalytic performance using various strategies such as mixed halide formation, trivalent metal incorporation, heterojunction engineering, and photosensitiser immobilisation. The results show enhanced CO2 conversion to methane (CH4) under visible and near-infrared light. These findings present a potential solution to reduce atmospheric CO2 levels and offer sustainable alternatives to fossil fuels. The study provides valuable insights into clean energy technologies, which could help mitigate climate change.