This study provides an in-depth analysis of the structural, mechanical, optical and electronic properties of C 60 , C 58 B 1 N 1 , C 56 B 2 N 2 , and C 54 B 3 N 3 nanosheets and their interaction with CO 2 , H 2 O, and N 2 molecules. These systems are selected based on the optimal arrangement of multiple BN pairs, ensuring a band gap of approximately 0.5 -1.5 eV. We outline the calculation methodology by detailing the employed DFT methods to achieve this. Subsequently, in the Results and Discussion section, we delve into the doped materials' structural and lattice dynamic stability. We will investigate the electronic band structure and projected density of the nanosheets' states. Additionally, we analyze the proposed sheets' mechanical and optical properties and compare the results with polymeric fullerene. Finally, we conclude with a succinct summary of the significant findings we obtained throughout this study.