title: Ordered mesoporous black TiO(2) as highly efficient hydrogen evolution photocatalyst.
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)).
authors.affiliation: Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University , Harbin 150080, P. R. China.
authors.forename: Wei
authors.initials: W
authors.lastname: Zhou
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.forename: Jian-Qiang
authors.initials: JQ
authors.lastname: Wang
authors.forename: Yang
authors.initials: Y
authors.lastname: Qu
authors.forename: Ying
authors.initials: Y
authors.lastname: Yang
authors.forename: Ying
authors.initials: Y
authors.lastname: Xie
authors.forename: Kaifu
authors.initials: K
authors.lastname: Zhang
authors.forename: Lei
authors.initials: L
authors.lastname: Wang
authors.forename: Honggang
authors.initials: H
authors.lastname: Fu
authors.forename: Dongyuan
authors.initials: D
authors.lastname: Zhao