콘텐츠 본문
논문 국내 국제전문학술지(SCI급) Cube sugar-like sponge/polymer brush composites for portable anduser-friendly heavy metal ion adsorbents
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2016-07
- 저자명 Ji Young Bae, Ha-Jin Lee, and Won San Choi*
- 학술지명 J.Hazard.Mater.
- 발행처명 ELSEVIER
- 발행국가 국내
- 논문언어 외국어
- 전체저자수 3
- 논문 다운로드 링크(외부) https://doi.org/10.1016/j.jhazmat.2016.07.067
- 연구분야 공학 > 화학공학
논문 초록 (Abstract)
Portable, non-toxic, and user-friendly sponge composites decorated with polyelectrolyte (PE) brushes were developed for the fast and efficient removal of heavy metal ions from waste water or drinking water. The polyacrylamide (PAM) and polyacrylic acid (PAA) brushes were grafted onto the sponge via ⿿grafting-from⿿ polymerization. For the polyethyleneimine (PEI) brush, ⿿grafting-to⿿ polymerization was used. A polydopamine (Pdop) layer was first coated on the sponge. Then, PEI was grafted onto the Pdop-coated sponge via a Michael addition reaction. The PEI-grafted sponge exhibited the best adsorption capacity and the fastest reaction rate of all the brushes due to the numerous adsorption sites of the PEI. The adsorption performance of two different PEI-grafted sponges depended on the molecular weight (MW) of the PEI. Simply by being dipped into a glass of water, non-toxic PEI-grafted sponge instantly removed the low concentration heavy metal ions, demonstrating a practical application for individual users.
