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논문 해외 국제전문학술지(SCI급) Smart Microcapsules Encapsulating Reconfigurable Carbon Nanotube cores
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2010-02
- 저자명 Won San Choi*, Hye Min Yang, Hye Young Koo, Ha-Jin Lee, Young Boo Lee, Tae Sung Bae, Il Cheol Jeon
- 학술지명 Adv. Funct. Mater.
- 발행처명 Wiley
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 7
- 논문 다운로드 링크(외부) https://doi.org/10.1002/adfm.200901739
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
The encapsulation of carbon nanotubes (CNTs) to form a reconfigurable conglomerate within iron oxide microcapsules is demonstrated. The individual CNTs conglomerate and form a core inside the capsule upon exposure to high temperature, while they scatter when subjected to mild sonication at low pH. The assembly/disassembly of CNTs within the capsule was reversible and could be repeated by alternate heating and sonication. Also, the fabrication protocol could be used for the generation of various multifunctional hollow structures. To test the feasibility of using the capsules in real applications, the capacity of the capsules as a heavy metal ion remover was explored. The resulting capsules showed an excellent ability to remove lead and chromium ions. In addition, desorption of the metal ions adsorbed on the CNTs could be induced by exposure to low pH. Thus, encapsulated CNTs might be a recyclable, environmentally friendly agent for the removal of heavy metal ions.
