| 학회 |
한국공업화학회 |
| 학술대회 |
2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 |
24권 1호 |
| 발표분야 |
포스터-나노 |
| 제목 |
Fabrication of Ultrathin Zeolitic Imidazolate Framework on Polymeric Hollow Fiber via Sequential Seed Layer Sputtering |
| 초록 |
Zeolitic imidazolate framework-8 (ZIF-8) has excellent potential for diverse applications, especially gas separations. Despite the recent progress in the fabrication of ultrathin ZIF-8 layer, conformal growth of ZIF-8 on the porous polymeric substrate remains challenging because it requires an elaborate ZnO seeding process. Herein, we report the growth of ultrathin ZIF-8 layer (＜ 300 nm) on the surface of porous polyamide-imide (PAI) hollow fiber. A densely packed ZnO seed layer was uniformly deposited on the PAI fiber via sequential two-step radio frequency (RF) sputtering. The ZnO layer was converted to ZIF-8 using 2-methylimidazole under solvothermal conditions. The conversion to ZIF-8 follows the heterogeneous crystal nucleation and growth kinetics. A conversion mechanism based on the Zn2+ ion diffusion through the ZnO grain boundaries is proposed. These results suggest a viable approach to deposit uniform seed layer on the non-flat substrate for MOF-polymer composite structure. |
| 저자 |
박영수, 신내철
|
| 소속 |
인하대 |
| 키워드 |
ZIF-8; Hollow fiber; Sputtering
|
| E-Mail |
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