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Synergistic Effect of Cu2O and Urea as Modifiers of TiO2 for Enhanced Visible Light Activity
| Title: | Synergistic Effect of Cu2O and Urea as Modifiers of TiO2 for Enhanced Visible Light Activity |
| Authors: | Janczarek, Marcin Browse this author | | Wang, Kunlei Browse this author | | Kowalska, Ewa Browse this author →ORCID |
| Keywords: | photocatalysis | | nanocomposites | | heterojunction | | Cu2O | | urea | | polytriazine | | Z-scheme |
| Issue Date: | Jun-2018 |
| Publisher: | MDPI |
| Journal Title: | Catalysts |
| Volume: | 8 |
| Issue: | 6 |
| Start Page: | 240 |
| Publisher DOI: | 10.3390/catal8060240 |
| Abstract: | Low cost compounds, i.e., Cu2O and urea, were used as TiO2 modifiers to introduce visible light activity. Simple and cheap methods were applied to synthesize an efficient and stable nanocomposite photocatalytic material. First, the core-shell structure TiO2–polytriazine derivatives were prepared. Thereafter, Cu2O was added as the second semiconductor to form a dual heterojunction system. Enhanced visible light activity was found for the above-mentioned nanocomposite, confirming a synergistic effect of Cu2O and urea (via polytriazine derivatives on titania surface). Two possible mechanisms of visible light activity of the considered material were proposed regarding the type II heterojunction and Z-scheme through the essential improvement of the charge separation effect. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/86392 |
| Appears in Collections: | 触媒科学研究所 (Institute for Catalysis) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: Ewa Kowalska
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