Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 39, Issue 31, Pages 17608-17616Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2014.08.127
Keywords
Pt-supported sodium tantalate (Pt-NaTaO3); Up-conversion luminescence agent (Er3+ :YAlO3); Visible-light photocatalyst; Water splitting; Hydrogen production
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Funding
- National Science Foundation of China [21371084]
- Innovation Team Project of Education Department of Liaoning Province [LT2012001]
- Public Research Fund Project of Science and Technology Department of Liaoning Province [2012004001]
- Shenyang Science and Technology Plan Project [F12-277-1-15, F13-289-1-00]
- Science Foundation of Liaoning Provincial Education Department [L2011007]
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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 cocatalyst. 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 degrees 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. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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