Superior solar- to- hydrogen energy conversion efficiency by visible light- driven hydrogen production via highly reduced Ti2+/ Ti3+states in a blue titanium dioxide photocatalyst
文献类型：期刊论文
| 作者 | De Silva, Nuwan Lakshitha1; Jayasundera, A. C. A.2; Folger, A.3; Kasian, O.3; Zhang, S.3; Yan, Chang-Feng4 ; Scheu, C.3; Bandara, J.1
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| 刊名 | CATALYSIS SCIENCE & TECHNOLOGY
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| 出版日期 | 2018-10-21 |
| 卷号 | 8期号:18页码:4657-4664 |
| ISSN号 | 2044-4753 |
| DOI | 10.1039/c8cy01212a |
| 通讯作者 | Bandara, J.(bandaraj@ifs.ac.lk) |
| 英文摘要 | Photocatalytic water splitting is one of the most important renewable paths and a reliable hydrogen production system. In most successful molecular and supramolecular biomimetic hydrogen production methods, a photosensitizer and a catalyst were constructed where the photoexcited electron in the photosensitizer is transferred either inter- or intramolecularly to the catalytic centre. Similar to supramolecular complexes in a photocatalytic hydrogen production scheme, here we develop a redox system that contains Ti3+/Ti2+ reduced states in TiO2 which act as both visible light harvesting components and the catalytic sites for the catalytic hydrogen production with visible-near infrared photons. The Ti3+/Ti2+ states in TiO2 produce hydrogen from pure water with a solar-to-hydrogen energy conversion efficiency of 0.89% and a quantum yield of 43% at 655 nm. The mechanism of hydrogen production by the Ti3+/Ti2+ reduced states in TiO2 involves the initial generation of highly air stable and highly reduced Ti3+ and Ti2+ states in TiO2 by the formation of an AlOOH layer surrounding the anatase and rutile particles. Once Ti3+ and Ti2+ states are generated, these states are continuously self-generated via absorption of visible-near infrared radiation where hydrogen is produced by the transfer of electrons from Ti3+/Ti2+ to H+. |
| WOS关键词 | TIO2 NANOTUBE ARRAYS ; ANATASE TIO2 ; OXYGEN VACANCIES ; WATER ; SURFACE ; GENERATION ; NANOPARTICLES ; IRRADIATION ; POLLUTANTS ; ELECTRODES |
| 资助项目 | AvH Foundation, Germany ; Chinese Academy of Sciences for the CAS PIFI fellowship ; National Natural Science Foundation of China[51576201] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000448144600010 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 资助机构 | AvH Foundation, Germany ; Chinese Academy of Sciences for the CAS PIFI fellowship ; National Natural Science Foundation of China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/24046]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Bandara, J. |
| 作者单位 | 1.Natl Inst Fundamental Studies, Hantana Rd,CP 20000, Kandy, Sri Lanka 2.Univ Peradeniya, Dept Chem, Peradeniya, Sri Lanka 3.Max Planck Inst Eisenforsch GmbH, Max Planck Str 1, D-40237 Dusseldorf, Germany 4.Chinese Acad Sci, Guangzhou Inst Energy Convers, Hydrogen Prod & Utilizat Lab, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | De Silva, Nuwan Lakshitha,Jayasundera, A. C. A.,Folger, A.,et al. Superior solar- to- hydrogen energy conversion efficiency by visible light- driven hydrogen production via highly reduced Ti2+/ Ti3+states in a blue titanium dioxide photocatalyst[J]. CATALYSIS SCIENCE & TECHNOLOGY,2018,8(18):4657-4664. |
| APA | De Silva, Nuwan Lakshitha.,Jayasundera, A. C. A..,Folger, A..,Kasian, O..,Zhang, S..,...&Bandara, J..(2018).Superior solar- to- hydrogen energy conversion efficiency by visible light- driven hydrogen production via highly reduced Ti2+/ Ti3+states in a blue titanium dioxide photocatalyst.CATALYSIS SCIENCE & TECHNOLOGY,8(18),4657-4664. |
| MLA | De Silva, Nuwan Lakshitha,et al."Superior solar- to- hydrogen energy conversion efficiency by visible light- driven hydrogen production via highly reduced Ti2+/ Ti3+states in a blue titanium dioxide photocatalyst".CATALYSIS SCIENCE & TECHNOLOGY 8.18(2018):4657-4664. |
入库方式： OAI收割
来源：广州能源研究所
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