The Synthesis and Photocatalytic activity of Carbon Nanotube-mixed TiO₂ NanotubesThe Synthesis and Photocatalytic activity of Carbon Nanotube-mixed TiO2 Nanotubes
- Other Titles
- The Synthesis and Photocatalytic activity of Carbon Nanotube-mixed TiO2 Nanotubes
- Authors
- 박천웅; 김영도; Tohru Sekino; 김세훈
- Issue Date
- Aug-2017
- Publisher
- 한국분말야금학회
- Keywords
- CNT-TNT composite; Hydrothermal synthesis; Photocatalyst; TiO2 nanotube; Core-shell structure
- Citation
- 한국분말야금학회지, v.24, no.4, pp.279 - 284
- Indexed
- KCI
- Journal Title
- 한국분말야금학회지
- Volume
- 24
- Number
- 4
- Start Page
- 279
- End Page
- 284
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/19483
- DOI
- 10.4150/KPMI.2017.24.4.279
- ISSN
- 1225-7591
- Abstract
- The formation mechanism and photocatalytic properties of a multiwalled carbon nanotube (MWCNT)/TiO₂- based nanotube (TNTs) composite are investigated. The CNT/TNT composite is synthesized via a solution chemical route. It is confirmed that this 1-D nanotube composite has a core-shell nanotubular structure, where the TNT surrounds the CNT core. The photocatalytic activity investigated based on the methylene blue degradation test is superior to that of with pure TNT. The CNTs play two important roles in enhancing the photocatalytic activity. One is to act as a template to form the core-shell structure while titanate nanosheets are converted into nanotubes. The other is to act as an electron reservoir that facilitates charge separation and electron transfer from the TNT, thus decreasing the electronhole recombination efficiency.
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