Separable and recyclable meso-carbon@TiO2/carbon fiber composites for visible-light photocatalysis and photoelectrocatalysis
Article
Article Title | Separable and recyclable meso-carbon@TiO2/carbon fiber composites for visible-light photocatalysis and photoelectrocatalysis |
---|---|
ERA Journal ID | 214258 |
Article Category | Article |
Authors | Chen, Hua-Jun (Author), Yang, Yan-Ling (Author), Hong, Min (Author), Chen, Jin-Geng (Author), Suo, Guo-Quan (Author), Hou, Xiao-Jiang (Author), Feng, Lei (Author) and Chen, Zhi-Gang (Author) |
Journal Title | Sustainable Materials and Technologies |
Journal Citation | 21, pp. 1-11 |
Article Number | e00105 |
Number of Pages | 11 |
Year | 2019 |
Publisher | Elsevier BV |
Place of Publication | Netherlands |
ISSN | 2214-9929 |
2214-9937 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.susmat.2019.e00105 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S221499371930017X |
Abstract | Recycle and reuse of the nanosized photocatalysts is a common challenge in the catalyst field. To address this issue, we rationally load meso‑carbon@TiO 2 core-shell microspheres on carbon fiber felt to synthesize macro-sized meso‑carbon@TiO 2 /carbon fiber composites by an in-situ adsorption method. From the detailed microstructural and spectroscopic characterization, it has been found that the absorption edge of meso‑carbon@TiO 2 core-shell microspheres is extended to the visible light region, and the recombination of photon-excited electrons and holes can be significantly suppressed when compared with P25 TiO 2 powder. The experiment results of meso‑carbon@TiO 2 /carbon fiber composites indicates that the photocatalytic degradation rate under UV–vis light is much higher than that under visible light irradiation due to the higher charge carrier separation efficiency and the higher electron consumption of the direct Z-scheme. Moreover, the photocurrent density and the separation of photon-excited electrons from holes can be effectively promoted in the photoelectrocatalysis of meso‑carbon@TiO 2 /carbon fiber composites under visible light. The synergistic effect between electrocatalytic and photocatalytic oxidation under visible light results in almost complete degradation of Rhodamine B. Our study provides an avenue to recycle and reuse nanosized photocatalysts and open a possibility for practical industrial application of photocatalysis and photoelectrocatalysis using separable and recyclable meso‑carbon@TiO 2 /carbon fiber composites. |
Keywords | Carbon fiber; Meso‑carbon; Photocatalysis and photoelectrocatalysis; TiO 2 |
ANZSRC Field of Research 2020 | 401605. Functional materials |
400404. Electrochemical energy storage and conversion | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Shaanxi University of Science and Technology, China |
Centre for Future Materials | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q7681/separable-and-recyclable-meso-carbon-tio2-carbon-fiber-composites-for-visible-light-photocatalysis-and-photoelectrocatalysis
66
total views3
total downloads1
views this month0
downloads this month