Sonochemical Preparation of a Magnet-Responsive Fe3O4@ZIF-8 Adsorbent for Efficient Cu2+ Removal
- Title
- Sonochemical Preparation of a Magnet-Responsive Fe3O4@ZIF-8 Adsorbent for Efficient Cu2+ Removal
- Author
- 김용신
- Keywords
- sonochemistry; Fe3O4 nanoparticle-embedded ZIF-8; magnetic composite; copper adsorption; Chemistry; QD1-999
- Issue Date
- 2022-03
- Publisher
- Multidisciplinary Digital Publishing Institute (MDPI)
- Citation
- Nanomaterials, Vol 12, Iss 753, p 753 (2022)
- Abstract
- This work presents a novel approach to synthesizing magnetic core-shell nanocomposites, con-sisting of magnetic nanoparticles and a metal-organic framework, for environmental applications. The synthesis is based on the encapsulation of magnetic Fe3O4 nanoparticles with microporous zeolitic imidazolate framework-8 (ZIF-8) nanocrystals via ultrasonic activation under a continuous supply of precursor solutions. This sonochemical approach is proven to be a fast, cost-effective, and controllable route for the preparation of magnet-responsive Fe3O4@ZIF-8 nanoparticles with a core-shell structure. The functional nanomaterial possesses a high content of ZIF-8 and combined micro/mesoporosity, and thus can be used as adsorbents that can be easily separated using a magnet. In particular, the sonochemically prepared Fe3O4@ZIF-8 exhibits significant adsorption performance for the removal of copper ions from water: a short adsorption time (10 min), high maximum uptake capacity (345 mg g−1), and excellent removal efficiency (95.3%). These perfor-mances are interpreted and discussed based on the materials characteristics of Fe3O4@ZIF-8 es-tablished by microscopy, gas sorption, X-ray diffraction, and thermal analysis.
- URI
- https://www.proquest.com/docview/2637794795?accountid=11283https://repository.hanyang.ac.kr/handle/20.500.11754/170803
- ISSN
- 2079-4991
- DOI
- 10.3390/nano12050753
- Appears in Collections:
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > CHEMICAL AND MOLECULAR ENGINEERING(화학분자공학과) > Articles
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