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Direct coating of a g-C3N4 layer onto one-dimensional TiO2 nanocluster/nanorod films for photoactive applications

Title
Direct coating of a g-C3N4 layer onto one-dimensional TiO2 nanocluster/nanorod films for photoactive applications
Author
이선영
Keywords
GRAPHITIC CARBON NITRIDE; ENHANCED PHOTOCATALYTIC ACTIVITY; VISIBLE-LIGHT IRRADIATION; HYDROGEN EVOLUTION; HETEROSTRUCTURE PHOTOCATALYSTS; N-TIO2/G-C3N4 HETEROJUNCTIONS; H-2 EVOLUTION; THIN-FILMS; WATER; EFFICIENT
Issue Date
2018-05
Publisher
ROYAL SOC CHEMISTRY
Citation
DALTON TRANSACTIONS, v. 47, No. 21, Page. 7237-7244
Abstract
We report the coating of metal-free graphitic carbon nitride (g-C3N4) onto titanium dioxide (TiO2) nanorods via a thermal evaporation method. Prior to g-C3N4 coating, TiO2 nanoclusters were grown on TiO2 nanorods to enhance the surface area by dipping in a TiCl3 solution for 12, 24 and 36 h. The prepared films were analyzed to assess the improvement in absorbance and reduction in recombination losses. Nanoclustered TiO2 grown for 24 h and then coated with a g-C3N4 film (i.e., TC_24h_CN) had the highest photocurrent of 235 and 290 A, respectively, when measured by transient photocurrent and linear sweep voltammetry techniques. The enhanced performance resulted from a reduced recombination of electron-hole pairs. The TC_24h_CN film displayed an excellent photoresponse over 15 h of exposure to visible light and hence could potentially be used in water purification device technology.
URI
https://pubs.rsc.org/en/content/articlehtml/2018/dt/c8dt01348ahttps://repository.hanyang.ac.kr/handle/20.500.11754/105498
ISSN
1477-9226
DOI
10.1039/c8dt01348a
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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