Cucurbituril-Based Reusable Nanocomposites for Efficient Molecular Encapsulation
- Authors
- Liu, Huifang; Luan, Yange; Koo, Bonhan; Lee, Eun Yeon; Joo, Jinmyoung; Thuy Nguyen Thi Dao; Zhao, Fei; Zhong, Linlin; Yun, Kyusik; Shin, Yong
- Issue Date
- 4-Mar-2019
- Publisher
- AMER CHEMICAL SOC
- Keywords
- Supermolecule; Biosilica; Nanocomposite; Rapid absorbance; Recycle; Molecular encapsulation
- Citation
- ACS SUSTAINABLE CHEMISTRY & ENGINEERING, v.7, no.5, pp.5440 - 5448
- Journal Title
- ACS SUSTAINABLE CHEMISTRY & ENGINEERING
- Volume
- 7
- Number
- 5
- Start Page
- 5440
- End Page
- 5448
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/1692
- DOI
- 10.1021/acssuschemeng.8b06506
- ISSN
- 2168-0485
- Abstract
- Cucurbituril (CB) has recently been employed in many fields, including water purification, solar cells, energy conversion, and biomedical engineering. However, the poor solubility of CB poses a serious obstacle to the further development of CB applications. To enhance the solubility of members of the CB family (CB[5-8]) by preventing self aggregation in aqueous solutions, the synthesis of highly stable, rapid, and water-dispersible particles is presented in this paper based on a simple process that employs a nanocomposite composed of CB and amine-modified diatomaceous earth (DA). CB can be coated onto the surface of the DA and stabilized to produce a novel material that is useful for various applications. The nanocomposite (CB-DA) exhibited a strong host guest interaction, exhibiting a more than 100-fold increase in efficiency and greater stability in dye and pathogen encapsulation as a result of the host guest interaction, electrostatic interaction, and covalent bonding. We applied CB-DA to a commercialized filter system and were able to purify the water within 2 min. We believe that CB-DA will open a new avenue for the efficient utilization of supermolecular materials in aqueous molecular encapsulation applications.
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