| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터) |
| 권호 |
44권 2호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Porous Polyimide Foams Functionalized with TEMPO-Oxidized Tunicate-Cellulose Nanocrystals as Adsorbent of Lead Ions |
| 초록 |
Since heavy metal ions in wastewater are harmful on the human body and environment, the removal of them has been received attention over the past few years. Here, we propose an adsorbent which offers flexibility in design and improves removal efficiency of heavy metal ions. Polyimide (PI) foam composite with (2, 2, 6, 6-tetramethylpiperidin-1-yl)oxyl (TEMPO)-oxidized tunicate-cellulose nanocrystals (TCNCs) is manufactured from high internal phase Pickering emulsion (HIPPE). The HIPPE system has the advantage of fabricating high porous PI-TCNC foam without aggregation of the cellulose nanocrystals. As the TCNC content increases, the adsorption capacity of heavy metal ions increases. The zeta potential measured at pH 5.2 is evidence that Pb2+ can be adsorbed on the negatively charged TCNC surface. The results indicate that the PI-TCNC foam exhibit high adsorption capacity for heavy metal ions and can be applied to industrial wastewater. |
| 저자 |
안현정1, 홍혜진2, 김윤호3, 원종찬1, 양관수1, 정현수1, 강이영4
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| 소속 |
1KRICT, 2UST, 3KIGAM, 4KIST |
| 키워드 |
high internal phase Pickering emulsion; Polyimide foam; cellulose; adsorption
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| E-Mail |
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