| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 184374 | Electrochimica Acta | 2015 | 6 Pages |
•CuInSe2 QDs-sensitized TiO2 nanotube arrays was prepared.•CuInSe2 QDs with diameter of 9 nm was decorated onto the outer and inner surface of the TiO2 NTs.•The TiO2 NTs/CISe largely enhanced the photocurrent response and degradation of rhodamine B under visible light irradiation.
The CuInSe2 quantum dots (CuInSe2 QDs) sensitization of TiO2 nanotube arrays (TiO2 NTs/CISe) was carried out by a successive ionic layer absorption and reaction (SILAR) method using Cu(Ac)2 and InCl3 as precursors at different Cu/In molar ratio. The deposition of CuInSe2 QDs on the upper and inner surface of the TiO2 NTs was confirmed by field emission scanning electron and transmission electron microscopes. UV-vis absorption and photoelectrochemical measurements indicated that the CuInSe2 QDs sensitization extended the visible light absorption and photocurrent response. The results also showed that TiO2 NTs/CISe largely enhanced the photocatalytic degradation of methyl orange (MO) under visible light irradiation, and showed the excellent activity and stability.
Graphical abstractThe CuInSe2 quantum dots sensitization of TiO2 NTs was carried out by a successive ionic layer absorption and reaction method using Cu(Ac)2, InCl3 as precursors at different deposition Cu/In molar ratio. The TiO2 NTs/CISe largely enhanced the visible spectrum absorption, photocurrent response and degradation of rhodamine B under visible light irradiation.Figure optionsDownload full-size imageDownload as PowerPoint slide
