title: A P25/(NH4)xWO3hybrid photocatalyst with broad spectrum photocatalytic properties under UV, visible, and near-infrared irradiation.
abstract: In this study, a series of hybrid nanostructured photocatalysts P25/(NH4)xWO3nanocomposites with the average crystallite size of P25 and (NH4)xWO3of the sample was calculated to be about 30 nm and 130 nm, were successfully synthesized via a simple one-step hydrothermal method. The as-obtained samples was characterized by transmission electron microscopy (TEM), which implies that the P25/(NH4)xWO3nanocomposites are fabricated with favourable nanosizd interfacial. The XPS results confirmed that the obtained sample consists of mixed chemical valences of W5+and W6+, the low-valance W5+sites could be the origin of NIR absorption. As revealed by optical absorption results, P25/(NH4)xWO3nanocomposites possess high optical absorption in the whole solar spectrum of 200-2500 nm. Benefiting from this unique photo-absorption property and the synergistic effect of P25 and (NH4)xWO3, broad spectrum response photocatalytic activities covering UV, visible and near infrared regions on degradation of Rhodamine B have been realized by P25/(NH4)xWO3nanocomposites. Meanwhile, the stability of photocatalysts was examined by the XRD and XPS of the photocatalysts after the reaction. The results show that P25/(NH4)xWO3photocatalysts has a brilliant application prospect in the energy utilization to solve deteriorating environmental issues.
authors.affiliation: Department of Materials Science, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China.
authors.forename: Linfen
authors.initials: L
authors.lastname: Yang
authors.affiliation: Department of Materials Science, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Liu
authors.affiliation: Department of Materials Science, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China.
authors.forename: Tongyao
authors.initials: T
authors.lastname: Liu
authors.affiliation: Department of Materials Science, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China.
authors.forename: Xinlong
authors.initials: X
authors.lastname: Ma
authors.affiliation: Department of Materials Science, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China.
authors.forename: Hao
authors.initials: H
authors.lastname: Li
authors.affiliation: Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Japan.
authors.forename: Shu
authors.initials: S
authors.lastname: Yin
authors.affiliation: Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, Japan.
authors.forename: Tsugio
authors.initials: T
authors.lastname: Sato
authors.affiliation: Department of Materials Science, School of Physical Science and Technology, Lanzhou University, Lanzhou, 730000, China.
authors.forename: Yuhua
authors.initials: Y
authors.lastname: Wang