Ordered mesoporous black TiO2 as highly efficient hydrogen evolution photocatalyst

Wei Zhou;Wei Li;Jian Qiang Wang;Yang Qu;Ying Yang;Ying Xie;Kaifu Zhang;Lei Wang;宏刚 付;东元 赵

Heilongjiang University;Fudan University;Chinese Academy of Sciences;China Association for Science and Technology

发表时间:2014-7-2

期 刊:Journal of the American Chemical Society

语 言:English

U R L: http://www.scopus.com/inward/record.url?scp=84903692156&partnerID=8YFLogxK

摘要

Mesoporous TiO2 has gained increasing interest because of its outstanding properties and promising applications in a wide range of fields. Herein, we report the facile synthesis of ordered mesoporous black TiO 2 (OMBT) materials, which exhibit excellent photocatalytic hydrogen evolution performances. In this case, the employment of a thermally stable and high-surface-area mesoporous TiO2 as the hydrogenation precursor is the key for fabricating the OMBT materials, which not only facilitate H 2 gas diffusion into TiO2 and interaction with their structures but also maintain the ordered mesoporous structures as well as inhibit the phase transformation (from anatase to rutile) and crystal growth during hydrogenation at 500°C. The resultant OMBT materials possess a relatively high surface area of ∼124 m2 g-1 and a large pore size and pore volume of ∼9.6 nm and 0.24 cm3 g -1, respectively. More importantly, the OMBT materials can extend the photoresponse from ultraviolet to visible and infrared light regions and exhibit a high solar-driven hydrogen production rate (136.2 μmol h -1), which is almost two times as high as that of pristine mesoporous TiO2 (76.6 μmol h-1).

相关科学

生物化学、遗传学和分子生物学
生物化学
化学工程
催化
胶体与表面化学
化学

被引量

期刊度量

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年份 CiteScore SJR SNIP
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1999 3.438 2.116
2000 3.589 2.149
2001 3.506 2.118
2002 3.587 2.326
2003 3.421 2.236
2004 3.841 2.199
2005 4.413 2.205
2006 4.662 2.229
2007 5.202 2.137
2008 5.06 2.114
2009 4.958 2.205
2010 5.167 2.14
2011 16.1 5.478 2.326
2012 17.4 6.211 2.373
2013 19.3 5.993 2.446
2014 20.9 6.294 2.568
2015 22.4 6.775 2.602
2016 23.5 7.492 2.608
2017 24 8.127 2.635
2018 24.4 7.468 2.657
2019 24.8 6.976 2.656
2020 25.1 7.115 2.605
2021 22

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