کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6454668 | 1418814 | 2017 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Effects of redox mediators on α-Fe2O3 exposed by {012} and {104} facets for photocatalytic water oxidation Effects of redox mediators on α-Fe2O3 exposed by {012} and {104} facets for photocatalytic water oxidation](/preview/png/6454668.png)
- The α-Fe2O3 exposed by {012} and {104} facets can facilitate the reduction of IO3â.
- The O2 evolution activity (309.4 μmol hâ1 gâ1) of α-Fe2O3 photocatalyst mainly exposed by {012} and {104} facets is 84 times higher than that (3.68 μmol hâ1 gâ1) of α-Fe2O3 mostly exposed by {101} and {111} planes.
- This work may open the door for further development of enhanced Z-scheme photocatalytic systems.
The mechanism study of redox mediator to transfer the photogenerated electrons is extremely desirable for artificial Z-scheme photocatalytic systems. Here we find that the α-Fe2O3 exposed by {012} and {104} facets can facilitate the reduction of IO3â, which results in increasing the activity of photocatalytic water oxidation significantly. By employing NaIO3 as an electron acceptor, the O2 evolution activity (309.4 μmol hâ1 gâ1) of α-Fe2O3 photocatalyst mainly exposed by {012} and {104} facets is 84 times higher than that (3.68 μmol hâ1 gâ1) of α-Fe2O3 mostly exposed by {101} and {111} planes. We anticipate that the findings in this work may open the door for further development of enhanced Z-scheme photocatalytic systems.
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Journal: Applied Catalysis B: Environmental - Volume 206, 5 June 2017, Pages 216-220