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 to many target gases. Herein, ZnO/CuO core-shell and ZnO/CuO hybrid, which were synthesized by different sol-gel methods and formed in two different crystal structures, were used as an addit...
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| Formato: | article |
| Lenguaje: | EN |
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Turkish Chemical Society
2021
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| Materias: | |
| Acceso en línea: | https://doi.org/10.18596/jotcsa.947087 https://doaj.org/article/1ce8b58a32f94256aaa7bf132f911a34 |
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| Sumario: | Semiconductor metal oxide materials have gained huge attention in gas sensors owing to their high sensitivity to many target gases. Herein, ZnO/CuO core-shell and ZnO/CuO hybrid, which were synthesized by different sol-gel methods and formed in two different crystal structures, were used as an additive material to enhance the response range of 8-hydroxypyrene-1, 3, 6-trisulfonic acid (HPTS) for the sensing of gaseous carbon dioxide. Metal oxide materials were characterized by using XPS, XRD, FTIR, SEM, UV–Vis, and PL spectroscopy. The HPTS dye along with the ZnO/CuO hybrid material displayed a higher CO2 gas sensitivity as 94% ratio (I0/I100=16.90) and Stern-Volmer constant (KSV) value and extended linear response range compared to the HPTS-based sensing thin films along with ZnO/CuO core-shell material and additive-free form. ZnO/CuO core-shell and hybrid structures were used for enhancing of carbon dioxide sensitivity of the HPTS dye. |
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