| 학회 |
한국고분자학회 |
| 학술대회 |
2020년 가을 (10/05 ~ 10/08, 부산컨벤션센터(BEXCO)) |
| 권호 |
45권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Thiol-Functionalization of cellulose nanofiber for heavy metal removal |
| 초록 |
This work reports the fabrication of a thiol-functionalized cellulose nanofiber that can effectively adsorb heavy metal ions. Thiol was incorporated onto the surface of cellulose nanofibers and subsequent esterification of a thiol precursor molecule. Adsorption mechanism was investigated using adsorption isotherms. Adsorption capacity as a function of adsorbate concentration was described well with Langmuir isotherm, suggesting that metal ions form a surface monolayer with a homogenously distributed adsorption energy.The time dependent adsorption capacities followed a pseudo-second-order kinetic model, suggesting that chemisorption of each doubly charged metal ion occurs with two thiol groups on the surface. These results highlight the significance of surface functionality on biocompatible and sustainable cellulose materials to expand their potential and applicability towards water remediation applications. |
| 저자 |
이호익 |
| 소속 |
한국생산기술(연) |
| 키워드 |
cellulose; nanofiber; electrospinning; heavy metal removal
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| E-Mail |
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