| Functionalized TiO₂ for Absorbing CO₂ from Natural Gas |
| کد مقاله : 1310-ICOC |
| نویسندگان |
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منصور جهانگیری *1، Mehdi Vahidi2، علیمراد رشیدی2، فروزان خوانپایه1 1دانشگاه سمنان 2خارج دانشگاه |
| چکیده مقاله |
| The aim of the present study was to purify natural gas from carbon dioxide impurity using a diethanolamine (DEA) solution containing functionalized titanium dioxide. In this study, TiO₂ particles were synthesized by sol-gel method and functionalized with polydopamine to create polar –OH and –NH₂ groups on the surface of the nanoparticles. Characterization using XRD, FTIR and SEM analyses confirmed the successful functionalization. Absorption experiments were performed using synthetic gas mixtures containing 1000 ppm CO₂ under ambient conditions. The carbon dioxide absorption performance of functionalized TiO₂ in DEA solutions showed that increasing the TiO₂ concentration to 1000 ppm resulted in more than fourfold removal of CO₂ from the solution, resulting in a favorable increase in absorption performance. |
| کلیدواژه ها |
| Titanium dioxide, diethanolamine, carbon dioxide |
| وضعیت: پذیرفته شده |