The Renewable and Sustainable Conversion of Chitin into a Chiral Nitrogen-Doped Carbon-Sheath Nanofiber for Enantioselective Adsorption
SCIE
SCOPUS
- Title
- The Renewable and Sustainable Conversion of Chitin into a Chiral Nitrogen-Doped Carbon-Sheath Nanofiber for Enantioselective Adsorption
- Authors
- Hoang‐Linh Nguyen; Sungbin Ju; HWANG, DONG SOO; Lam Tan Hao; Thang Hong Tran; Hyun Gil Cha; Yoon Jeong Cha; Jeyoung Park; Sung Yeon Hwang; Dongyeop X. Oh; Dong Ki Yoon
- Date Issued
- 2019-07
- Publisher
- WILEY-V C H VERLAG GMBH
- Abstract
- Well-known hard-template methods for nitrogen (N)-doped chiral carbon nanomaterials require complicated construction and removal of the template, high-temperature pyrolysis, harsh chemical treatments, and additional N-doping processes. If naturally occurring chiral nematic chitin nanostructures [(C8H13NO5)(n)] in exoskeletons were wholly transformed into an N-doped carbon, this would be an efficient and sustainable method to obtain a useful chiral nanomaterial. Here, a simple, sacrificial-template-free, and environmentally mild method was developed to produce an N-doped chiral nematic carbon-sheath nanofibril hydrogel with a surface area >300 m(2) g(-1) and enantioselective properties from renewable chitin biomass. Calcium-saturated methanol physically exfoliated bulk chitin and produced a chiral nematic nanofibril hydrogel. Hydrothermal treatment of the chiral chitin hydrogel at 190 degrees C produced an N-doped chiral carbon-sheath nanofibril hydrogel without N-doping. This material preferentially adsorbed d-lactic acid over l-lactic acid and produced 16.3 % enantiomeric excess of l-lactic acid from a racemic mixture.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/99658
- DOI
- 10.1002/cssc.201901176
- ISSN
- 1864-5631
- Article Type
- Article
- Citation
- CHEMSUSCHEM, vol. 12, no. 14, page. 3236 - 3242, 2019-07
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