@article{Meng2017, 
author = {Ling Meng and Zhiyu Ren and Wei Zhou and Yang Qu and Guofeng Wang},
title = {MgTiO3/MgTi2O5/TiO2 heterogeneous belt-junctions with high photocatalytic hydrogen production activity},
year = {2017},
journal = {Nano Research},
volume = {10},
number = {1},
pages = {295-304},
keywords = {MgTiO3/MgTi2O5/TiO2, heterogeneous belt-junctions, photocatalytic hydrogen, production},
url = {https://www.sciopen.com/article/10.1007/s12274-016-1292-6},
doi = {10.1007/s12274-016-1292-6},
abstract = {An effective photocatalytic hydrogen production catalyst comprising MgTiO3/ MgTi2O5/TiO2 heterogeneous belt-junctions was prepared using magnesium ions by a thermally driven doping method. The tri-phase heterogeneous junction was confirmed by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), and high-resolution TEM (HRTEM). The as-prepared MgTiO3/MgTi2O5/ TiO2 heterojunctions exhibited a very high photocatalytic hydrogen production activity (356.1 mol∙g0.1gcat∙h−1) and an apparent quantum efficiency (50.69% at 365 nm) that is about twice of that of bare TiO2 nanobelts (189.4 mol∙g0.1gcat∙h−1). Linear sweep voltage and transient photocurrent characterization as well as analysis of the electrochemical impedance spectra and Mott-Schottky plots revealed that the high photocatalytic performance is caused by the one-dimensional structure, which imparts excellent charge transportation characteristic, and the MgTiO3/MgTi2O5/TiO2 tri-phase heterojunction, which effectively drives the charge separation through the inherent electric field. This titanate-based tri-phase heterogeneous junction photocatalyst further enriches the catalyst system for photocatalytic hydrogen production.}
}