| 학회 | 한국공업화학회 |
| 학술대회 | 2020년 가을 (10/28 ~ 10/30, 광주 김대중컨벤션센터(Kimdaejung Convention Center)) |
| 권호 | 24권 1호 |
| 발표분야 | 포스터-고분자 |
| 제목 | The fabrication of the thiol-functionalized cellulose nanofiber membrane for adsorption of heavy metal ions from aqueous solution |
| 초록 | In this study, a cellulose nanofiber was thiol-functionalized to effectively adsorb heavy metal ions. Thiol was used to functionalize the surface of cellulose nanofibers and subsequent esterification of a thiol precursor molecule. We investigate adsorption mechanism using adsorption isotherms. Adsorption capacity as a function of adsorbate concentration was described well by the with Langmuir isotherm. This result suggests 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 offer the possibility to expand their potential applicability toward water remediation applications and emphasize the importance of surface functionality on sustainable and biocompatible cellulose materials. |
| 저자 | 정유라, 이호익 |
| 소속 | 한국생산기술(연) |
| 키워드 | Cellulose; Thiol functionality; Nanofiber; Metal ion; Adsorption isotherm |
