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Baotou, China

Ning X.-L.,Baotou Normal College | Yu J.-S.,Inner Mongolia University of Science and Technology
Applied Mechanics and Materials | Year: 2013

The significance of Ecological City construction was summarized. On the basis of summary of the domestic and overseas current situation and development trend of Ecological City construction, the ideas of the construction of the Ecological City in Baotou city were put forward: Making evaluation system and methods by using the ecological system principle; the public participation; establishing the policy system and legal system of Ecological City; outstanding individual characteristics of the city. © (2013) Trans Tech Publications, Switzerland. Source


Li Y.,Liaoning University | Guo Y.,Liaoning University | Guo Y.,Baotou Normal College | Li S.,Liaoning University | Wang J.,Liaoning University
International Journal of Hydrogen Energy | Year: 2015

In this work, a novel up-conversion luminescence agent (Er3+:Y3Al5O12) was synthesized by sol-gel method and then for visible-light photocatalytic hydrogen evolution a corresponding visible-light photocatalyst, platinum supported titanium dioxide nanocomposites coating up-conversion luminescence agent (Er3+:Y3Al5O12/Pt-TiO2 nanocomposite particles), was successfully prepared by sol-gel and calcination methods. Er3+:Y3Al5O12, Pt-TiO2 and Er3+:Y3Al5O12/Pt-TiO2 were all characterized by X-ray diffractometer (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM) and energy dispersive X-ray spectroscopy (EDX). The visible-light photocatalytic activity of Er3+:Y3Al5O12/Pt-TiO2 nanocomposites was examined through photocatalytic hydrogen evolution from methanol splitting under visible-light irradiation. The influence factors such as Er3+:Y3Al5O12 and Pt-TiO2 mole ratio, heat-treated temperature and heat-treated time on the visible-light photocatalytic hydrogen evolution activity of Er3+:Y3Al5O12/Pt-TiO2 nanocomposites were also studied. Particularly, Er3+:Y3Al5O12/Pt -TiO2 nanocomposites with 1.5:1.0 M ratio heat-treated at 500 °C for 60 min showed the highest visible-light photocatalytic activity in hydrogen evolution from methanol splitting. Copyright © 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved. Source


Li Y.,Liaoning University | Li S.,Liaoning University | Guo Y.,Liaoning University | Guo Y.,Baotou Normal College | Wang J.,Liaoning University
International Journal of Hydrogen Energy | Year: 2014

NaTaO3 nanoparticles were synthesized by hydrothermal method and then the corresponding visible-light photocatalyst (Er3+:YAlO3/Pt-NaTaO3) was successfully prepared by mixing with Er3+:YAlO3 as up-conversion luminescence agent and supporting Pt as co-catalyst. The prepared Er3+:YAlO3/Pt-NaTaO3 was characterized by X-ray diffractometer (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). By studying some influence factors such as Er3+:YAlO3 and Pt-NaTaO3 mass ratio, heat-treated temperature, visible-light irradiation time and solution acidity (pH) on the visible-light photocatalytic hydrogen production caused by Er3+:YAlO3/Pt-NaTaO3, it was found that the prepared Er3+:YAlO3/Pt-NaTaO3 with 0.3:1.0 mass ratio heat-treated at 500 °C for 120 min in weak acidic solution (pH = 5.0-6.0) with 5.0 wt% methanol displayed a high photocatalytic activity in hydrogen production from water solution. © 2014 Hydrogen Energy Publications, LLC. Source


In this work, YAlO3/SnO2-TiO2 composites were prepared by the ultrasonic dispersion and liquid boiling method. In succession, they were then characterized by scanning electron microscopy (SEM). Acid red B as a model dye compound was degraded under visible light irradiation to evaluate the photocatalytic activities of the YAlO3/SnO2-TiO2 composites. It found that the photocatalytic activity of SnO2-TiO2 composite can be enhanced by adding an appropriate amount of YAlO3. Effects of heat-treated temperature and heat-treated time on the photocatalytic activity of the YAlO3/SnO2-TiO2 composites were investigated. In addition, the effects of visible light irradiation time and YAlO3/SnO2-TiO2 amount on the photocatalytic degradation of acid red B dye in aqueous solution were investigated in detail. Source


Li S.,Liaoning University | Guo Y.,Liaoning University | Guo Y.,Baotou Normal College | Zhang L.,Liaoning University | And 3 more authors.
Journal of Power Sources | Year: 2014

In this paper, a high effective up-conversion luminescence agent (Er 3+:Y3Al5O12) is synthesized by sol-gel method, and then its corresponding visible-light photocatalyst (Er 3+:Y3Al5O12/Pt-TiO2) is successfully prepared by direct mixing and calcination methods. For comparison, Er3+:Y3Al5O12, Pt-TiO2 and Er3+:Y3Al5O12/Pt-TiO2 are all characterized by X-ray diffractometer (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). At first, the up-conversion luminescence properties of Er3+:Y3Al 5O12 are reviewed by excitation spectrum in visible-light region and emission spectrum in ultraviolet-light region. And then, under visible-light irradiation the visible-light photocatalytic activity of Er 3+:Y3Al5O12/Pt-TiO2 is examined through photocatalytic hydrogen production from aqueous methanol solution. Lastly, the influence factors such as Er3+:Y 3Al5O12 and Pt-TiO2 mole ratio, heat-treated temperature and heat-treated time on the visible-light photocatalytic hydrogen production activity of Er3+:Y 3Al5O12/Pt-TiO2 are studied. Particularly, Er3+:Y3Al5O12/Pt- TiO2 with 6:100 M ratio heat-treated at 550 C for 90 min shows the highest photocatalytic activity in hydrogen production from aqueous methanol solution. © 2013 Elsevier B.V. All rights reserved. Source

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