Selective acetate detection using functional carbon nanotube fiber
- Title
- Selective acetate detection using functional carbon nanotube fiber
- Other Titles
- Selective acetate detection using functional carbon nanotube fiber
- Author
- 최선진
- Keywords
- Dual-hydrogen bond donor; Carbon nanotube fiber; Acetate; Chemiresistive anion sensor
- Issue Date
- 2021-11
- Publisher
- 한국센서학회
- Citation
- 센서학회지, v. 30, NO. 6, Page. 357-363
- Abstract
- We developed a chemiresistive anion sensor using highly conductive carbon nanotube fibers (CNTFs) functionalized with anion receptors. Mechanically robust CNTFs were prepared via wet-spinning utilizing the nematic liquid crystal properties of CNTs in chlorosulfonic acid (CSA). For anion detection, polymeric receptors composed of dual-hydrogen bond donors, including thiourea 1, squaramide 2, and croconamide 3, were prepared and bonded non-covalently on the surface of the CNTFs. The binding affinities of the anion receptors were studied using UV–vis titrations. The results revealed that squaramide 2 exhibited the highest binding affinity toward AcO– , followed by thiourea 1 and croconamide 3. This trend was consistent with the chemiresistive sensing responses toward AcO– using functional CNTFs. Selective anion sensing properties were observed that CNTFs functionalized with squaramide 2 exhibited a response of 1.08% toward 33.33 mM AcO– , while negligible responses (<0.1%) were observed for other anions such as Cl– , Br–, and NO3–. The improved response was attributed to the internal charge transfer of dual-hydrogen bond donors owing to the deprotonation of the receptor upon the addition of AcO–
- URI
- http://jsstec.org/_common/do.php?a=full&bidx=2766&aidx=31247https://repository.hanyang.ac.kr/handle/20.500.11754/176262
- ISSN
- 1225-5475;2093-7563
- DOI
- 10.46670/JSST.2021.30.6.357
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
- Files in This Item:
- 85229_최선진.pdfDownload
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