Improvement of The CO2 Sensitivity of HPTS Along With ZnO/CuO Nanoparticles: A Comparative Study Between Core-Shell And Hybrid Structures

Semiconductor metal oxide materials have gained huge attention in gas sensors owing to their high sensitivity many target gases. Herein, ZnO/CuO core-shell and hybrid, which were synthesized by different sol-gel methods formed two crystal structures, used as an additive material enhance the response range of 8-hydroxypyrene-1, 3, 6-trisulfonic acid (HPTS) for sensing gaseous carbon dioxide. Metal characterized using XPS, XRD, FTIR, SEM, UV–Vis, PL spectroscopy. The HPTS dye along with hybrid displayed a higher CO2 94% ratio (I0/I100=16.90) Stern-Volmer constant (KSV) value extended linear compared HPTS-based thin films additive-free form. structures enhancing dioxide dye.