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Hydrogenated Cagelike Titania Hollow Spherical Photocatalysts for Hydrogen Evolution under Simulated Solar Light Irradiation
Wang, YT; Cai, JM; Wu, MQ; Zhang, H; Meng, M; Tian, Y; Ding, T; Gong, JL; Jiang, Z; Li, XG; Li, XG (reprint author), Tianjin Univ, Sch Chem Engn & Technol, Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China.; Li, XG (reprint author), Tianjin Univ, Sch Chem Engn & Technol, Tianjin Key Lab Appl Catalysis Sci & Engn, Tianjin 300072, Peoples R China.
2016
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume8Issue:35Pages:23006-23014
Subtype期刊论文
AbstractWe 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 mu mol h(-1) (20 mg) under the simulated solar light irradiation, which is similar to 12 times higher than the hydrogenated TiO2 solid spheres and is similar to 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.
KeywordCagelike Hollow Spheres Multiple Reflection Hydrogenation Photocatalysis Hydrogen Evolution Water Splitting
DOI10.1021/acsami.6b05777
Indexed BySCI
Language英语
WOS IDWOS:000382902800031
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/26534
Collection中科院上海应用物理研究所2011-2018年
Corresponding AuthorLi, XG (reprint author), Tianjin Univ, Sch Chem Engn & Technol, Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China.; Li, XG (reprint author), Tianjin Univ, Sch Chem Engn & Technol, Tianjin Key Lab Appl Catalysis Sci & Engn, Tianjin 300072, Peoples R China.
Recommended Citation
GB/T 7714
Wang, YT,Cai, JM,Wu, MQ,et al. Hydrogenated Cagelike Titania Hollow Spherical Photocatalysts for Hydrogen Evolution under Simulated Solar Light Irradiation[J]. ACS APPLIED MATERIALS & INTERFACES,2016,8(35):23006-23014.
APA Wang, YT.,Cai, JM.,Wu, MQ.,Zhang, H.,Meng, M.,...&Li, XG .(2016).Hydrogenated Cagelike Titania Hollow Spherical Photocatalysts for Hydrogen Evolution under Simulated Solar Light Irradiation.ACS APPLIED MATERIALS & INTERFACES,8(35),23006-23014.
MLA Wang, YT,et al."Hydrogenated Cagelike Titania Hollow Spherical Photocatalysts for Hydrogen Evolution under Simulated Solar Light Irradiation".ACS APPLIED MATERIALS & INTERFACES 8.35(2016):23006-23014.
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