DataVXACS Applied Materials & InterfacesPaper
journal article·2016-09-07

Hydrogenated Cagelike Titania Hollow Spherical Photocatalysts for Hydrogen Evolution under Simulated Solar Light Irradiation

Yating Wang, Jinmeng Cai, Moqing Wu, Hao Zhang, Ming Meng, Ye Tian, Tong Ding, Jinlong Gong, Zheng Jiang, Xingang Li

ACS Applied Materials & Interfaces· Volume 8· Issue 35
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Source abstract

Abstract

We synthesized the hydrogenated cagelike TiO2 hollow spheres through a facile sacrificial template method. After the hydrogenation treatment, the disordered surface layer and cagelike pores were generated on the shell of the hollow spheres. The spheres exhibit a high hydrogen evolution rate of 212.7 ± 10.6 μmol h(-1) (20 mg) under the simulated solar light irradiation, which is ∼12 times higher than the hydrogenated TiO2 solid spheres and is ∼9 times higher than the original TiO2 hollow spheres. The high activity results from the unique architectures and hydrogenation. Both the multiple reflection that was improved by the cagelike hollow structures and the red shift of the absorption edge that was induced by hydrogenation can enhance the ultraviolet and visible light absorption. In addition, the high concentration of oxygen vacancies, as well as the hydrogenated disordered surface layer, can improve the efficiency for migration and separation of generated charge carriers.
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Research context

Catalysis & surfaces

OpenAlex topics: Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells · Catalytic Processes in Materials Science

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Collaborative Innovation Center for Chemical Science & Engineering, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, People’s Republic of China

Tianjin Key Laboratory of Applied Catalysis Science & Engineering, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, People’s Republic of China

Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, People’s Republic of China

Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, People’s Republic of China

Funding

Natural Science Foundation of Tianjin City · Ministry of Education of the People's Republic of China · Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China

References (43)

Show source-provided references
1. 10.1038/ncomms564710.1038/ncomms5647 ↗
2. 10.1038/238037a010.1038/238037a0 ↗
3. 10.1021/acscatal.5b0005510.1021/acscatal.5b00055 ↗
4. 10.1021/acsami.5b0731810.1021/acsami.5b07318 ↗
5. 10.1039/C4TA00941J10.1039/C4TA00941J ↗
6. 10.1126/science.120044810.1126/science.1200448 ↗
7. 10.1039/C4CS00330F10.1039/C4CS00330F ↗
8. 10.1039/C5TA04326C10.1039/C5TA04326C ↗
9. 10.1021/ja072191c10.1021/ja072191c ↗
10. 10.1016/j.apcatb.2013.11.04010.1016/j.apcatb.2013.11.040 ↗
11. 10.1016/j.dyepig.2013.05.00510.1016/j.dyepig.2013.05.005 ↗
12. 10.1002/adfm.20110192710.1002/adfm.201101927 ↗
13. 10.1016/j.catcom.2010.01.01410.1016/j.catcom.2010.01.014 ↗
14. 10.1002/anie.20130369310.1002/anie.201303693 ↗
15. 10.1039/C5EE02443A10.1039/C5EE02443A ↗
16. 10.1016/S0045-6535(02)00486-110.1016/S0045-6535(02)00486-1 ↗
17. 10.1039/c4cc01667j10.1039/c4cc01667j ↗
18. 10.1039/C1NR11353D10.1039/C1NR11353D ↗
19. 10.1039/C4NR05963H10.1039/C4NR05963H ↗
20. 10.1021/jp908088x10.1021/jp908088x ↗
21. 10.1039/c3ee42708k10.1039/c3ee42708k ↗
22. 10.1002/adfm.20140176010.1002/adfm.201401760 ↗
23. 10.1002/adfm.20130048610.1002/adfm.201300486 ↗
24. 10.1021/jp908088x10.1021/jp908088x ↗
25. 10.1016/j.actamat.2012.08.03010.1016/j.actamat.2012.08.030 ↗
26. 10.1021/jp109057s10.1021/jp109057s ↗
27. 10.1021/ic302618210.1021/ic3026182 ↗
28. 10.1021/am402983k10.1021/am402983k ↗
29. 10.1021/ja809237310.1021/ja8092373 ↗
30. 10.1016/j.cattod.2013.08.02610.1016/j.cattod.2013.08.026 ↗
31. 10.1021/nl201766h10.1021/nl201766h ↗
32. 10.1021/ja301267610.1021/ja3012676 ↗
33. 10.1021/jp307573c10.1021/jp307573c ↗
34. 10.1016/j.jssc.2010.08.01810.1016/j.jssc.2010.08.018 ↗
35. 10.1021/jp212219610.1021/jp2122196 ↗
36. 10.1063/1.236412310.1063/1.2364123 ↗
37. 10.1039/c0jm04085a10.1039/c0jm04085a ↗
38. 10.1021/ja504802q10.1021/ja504802q ↗
39. 10.1039/c2cc34437h10.1039/c2cc34437h ↗
40. 10.1039/C5SC03551A10.1039/C5SC03551A ↗
41. 10.1002/cctc.20130056510.1002/cctc.201300565 ↗
42. 10.1103/PhysRevLett.97.16680310.1103/PhysRevLett.97.166803 ↗
43. 10.1103/PhysRevB.79.09210110.1103/PhysRevB.79.092101 ↗