Ordered mesoporous black TiO(2) as highly efficient hydrogen evolution photocatalyst.

Content Provider	Semantic Scholar
Author	Zhou, Wei Wang, Jianqiang Qu, Yang Yang, Ying Xie, Ying Ke Zhang, Kaifu Wang, Li-Xi Fu, Honggang Zhao, Dongyuan
Copyright Year	2014
Abstract	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 TiO2 (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 H2 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 m(2) g(-1) and a large pore size and pore volume of ∼9.6 nm and 0.24 cm(3) 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)).
File Format	PDF HTM / HTML
DOI	10.1021/ja504802q
PubMed reference number	24937035
Journal	Medline
Volume Number	136
Issue Number	26
Alternate Webpage(s)	http://www.meplab.fudan.edu.cn/d/file/infonet/assays/2015-07-02/75c13b956d7711fd8039736853f8c040.pdf
Alternate Webpage(s)	https://doi.org/10.1021/ja504802q
Journal	Journal of the American Chemical Society
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article