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Author |
Li, Z.-R.; Liu, J.; Sun, J.-Y.; Hu, Z.-Y.; Li, W.-Y.; Shen, T.-T.; Wei, M.-T.; Yin, Z.-W.; Wu, S.-M.; Van Tendeloo, G.; Li, Y.; Su, B.-L. |
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Title |
Construction of a heterojunction between Ni/Al layered double oxides and CdS quantum dots for efficient photocatalytic hydrogen production |
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A1 Journal article |
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Year  |
2025 |
Publication |
Journal of colloid and interface science |
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Volume |
692 |
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Pages |
137531-12 |
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Keywords |
A1 Journal article; Electron microscopy for materials research (EMAT) |
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Abstract |
The Ni/Al layered double oxide (Ni/Al-LDO) is a promising photocatalyst because of the high surface area and abundant active sites. However, the application of Ni/Al-LDO for photocatalytic hydrogen evolution is hindered by the unclarity of the optimized microstructure and limited light absorption. In this work we report the structural evolution from Ni/Al layered double hydroxides (Ni/Al-LDH) to Ni/Al-LDO, which is able to achieve a precise regulation of the layered structure with abundant acid sites for photocatalysis. Further, CdS quantum dots (QDs) are in-situ grown on the sheet-like Ni/Al-LDO to obtain a close contact 0D/2D CdS-Ni/Al-LDO heterojunction. CdS-Ni/Al-LDO exhibits a hydrogen evolution efficiency of 20.3 mmol/g/h and an apparent quantum yield (AQY) of 22.2 % at a wavelength of 450 nm. The superior performance is attributed to the synergistic effects of abundant Lewis and Br & oslash;nsted acid sites of Ni/Al-LDO, the layered structure with a high specific surface area and the heterojunction between Ni/Al-LDO and the CdS QDs. |
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WOS:001469296400001 |
Publication Date |
2025-04-08 |
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ISSN |
0021-9797; 1095-7103 |
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Additional Links |
UA library record; WoS full record |
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Open Access |
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Call Number |
UA @ admin @ c:irua:213878 |
Serial |
9418 |
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