Efficient photocatalytic hydrogen evolution from methanol/water splitting over Tm3+,Yb3+:NaYF4-Er3+:Y3Al5O12/MoS2-NaTaO3 nanocomposite particles under infrared-visible light irradiation

被引：27
作者：
Chen, Yang [1 ]
Lu, Chunxiao [1 ]
Tang, Liang [1 ]
Wei, Shengnan [1 ]
Song, Yahui [1 ]
Wang, Jun [1 ]
机构：
[1] Liaoning Univ, Coll Chem, Shenyang 110036, Peoples R China
来源：
SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2016年 / 149卷
基金：
美国国家科学基金会;
关键词：
Up-conversion luminescence agent; Tm3+:Yb3+:NaYF4-Er3+Y3Al5O12/MoS2-NaTaO3 nanocomposite particles; Infrared-visible light photocatalyst; Methanol/water splitting; Hydrogen evolution; UP-CONVERSION LUMINESCENCE; HYDROTHERMAL SYNTHESIS; NAYF4YB3+; TM3+; CRYSTALS; TIO2; NANOPARTICLES; H-2; NANOCRYSTALS; ENHANCEMENT; PERFORMANCE; COCATALYST; COMPOSITE;
D O I：
10.1016/j.solmat.2016.01.007
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In this paper, two efficient up-conversion luminescence agents, Tm3+,Yb3+:NaYF4 (from infrared light to ultravoilet light) and Er3+:Y3Al5O12 (from visible light to ultravoilet light), were synthesized by hydro thermal and sol-gel methods, respectively. And then, a novel photocatalyst, Tm3+,Yb3+:NaYF4-Er3+:Y3Al5O12/MoS2-NaTaO3 nanocomposite particles, were successfully prepared by hydrothermal and calcination methods for infrared-visible light photocatalytic hydrogen evolution. For comparison and confirmation, Tm3+,Yb3+:NaYF4, Er3+:Y3Al5O12, MoS2-NaTaO3, Tm3+,Yb3+NaYE4/MoS2-NaTaO3, Er3+: Y3Al5O12/MoS2-NaTaO3, and Tm3+,Yb3+:NaYF4-Er3+:Y3Al5O12/MoS2-NaTaO3 were all characterized by X-ray diffractometer (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). The photocatalytic activity of Tm3+,Yb3+:NaYF4-Er3+:Y3Al5O12/MoS2-NaTaO3 nano composite particles was examined through photocatalytic hydrogen evolution from methanol splitting under infrared-visible light irradiation. The influence factors such as mass ratio of Tm3+,Yb3+:NaYF4Er3+:Y3Al5O12 and NaTaO3, calcination temperature, solution acidity (pH) and used time on the infrared visible light photocatalytic hydrogen evolution activity of Tm3+,Yb3+:NaYF4-Er3+:Y3Al5O12/MoS2NaTaO3 nanocomposite particles were studied. Particularly, the prepared Tm3+,Yb3+:NaYF4-Er3+: Y3Al5O12/MoS2-NaTaO3 nanocomposite particles with the mass ratio of 0.3:1.0 heat-treated at 500 degrees C for 120 min in pH=6.0 solution with 10.0 wt % methanol displayed a high infrared-visible light photo catalytic activity in hydrogen production from water solution. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：128 / 136
页数：9
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