Highly Hydrophobic Polydimethylsiloxane-Coated Expanded Vermiculite Sorbents for Selective Oil Removal from Water
- Title
- Highly Hydrophobic Polydimethylsiloxane-Coated Expanded Vermiculite Sorbents for Selective Oil Removal from Water
- Author
- 김용신
- Keywords
- expanded vermiculite; PDMS vapor deposition; oil sorbent; oil-collecting
- Issue Date
- 2021-02
- Publisher
- MDPI
- Citation
- Nanomaterials, v. 11, NO. 2, article no. 367, Page. 1-13
- Abstract
- Naturally abundant vermiculite clay was expanded by using an aqueous solution of H2O2 and its surface was modified with ultra-thin polydimethylsiloxane (PDMS) using facile thermal vapor deposition to prepare an ecologically friendly, low-cost oil sorbent that plays an important role in oil spillage remediation. The resulting PDMS-coated expanded vermiculite (eVMT@PDMS) particles exhibited adequate hydrophobicity and oleophilicity for oil/water separation, with numerous conical slit pores (a size of 0.1-100 mu m) providing a great sorption capacity and an efficient capillarity-driven flow pathway for oil collection. Simply with using a physically-packed eVMT@PDMS tube (or pouch), selective oil removals were demonstrated above and beneath the surface of the water. Furthermore, these sorbents were successfully integrated and then applied to the advanced oil-collecting devices such as a barrel-shaped oil skimmer and a self-primed oil pump.
- URI
- https://www.mdpi.com/2079-4991/11/2/367https://repository.hanyang.ac.kr/handle/20.500.11754/185162
- ISSN
- 2079-4991
- DOI
- 10.3390/nano11020367
- Appears in Collections:
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > CHEMICAL AND MOLECULAR ENGINEERING(화학분자공학과) > Articles
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- 23081_김용신.pdfDownload
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