Eosin Y-sensitized ZnO/TiO 2 for efficient visible light photocatalytic hydrogen evolution

Haipei Liu; Dengwei Jing; Liejin Guo

doi:10.1557/opl.2011.1331

Eosin Y-sensitized ZnO/TiO ₂ for efficient visible light photocatalytic hydrogen evolution

Haipei Liu
, Dengwei Jing
, Liejin Guo

School of Energy and Power Engineering

Xi'an Jiaotong University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

In this work a series of Eosin Y-ZnO(x%)/TiO ₂ were prepared. ZnO well dispersed on the surface of TiO ₂, which improves the adsorption of Eosin Y and the excited electron to transfer to the conduction band of TiO ₂. Therefore the visible light activity of 0.2%Pt-Eosin Y-ZnO(x%)/TiO ₂ is much higher than that of the 0.2%Pt-Eosin Y-TiO ₂ and 0.2%Pt-Eosin Y-ZnO. The 0.2%Pt-Eosin Y-ZnO(1.5%)/TiO ₂ has the highest visible light activity among the catalysts coupled with various ZnO amount, whose activity is increased by a factor of 3.5 compared to that of 0.2%Pt-Eosin Y-TiO ₂. It is proposed that, 0.2%Pt-Eosin Y-ZnO(1.5%)/TiO ₂ has the optimal trapping sites of carriers and thickness of the space-charge layer on the TiO ₂ particle surface, so these factors result a more efficient charge separation, an increased lifetime of the charge carriers, and the enhanced of hydrogen production.

Original language	English
Title of host publication	Renewable Fuels and Nanotechnology
Pages	132-137
Number of pages	6
DOIs	https://doi.org/10.1557/opl.2011.1331
State	Published - 2011
Event	2011 MRS Spring Meeting - San Francisco, CA, United States Duration: 25 Apr 2011 → 29 Apr 2011

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	1326
ISSN (Print)	0272-9172

Conference

Conference	2011 MRS Spring Meeting
Country/Territory	United States
City	San Francisco, CA
Period	25/04/11 → 29/04/11

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1557/opl.2011.1331

Cite this

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title = "Eosin Y-sensitized ZnO/TiO 2 for efficient visible light photocatalytic hydrogen evolution",

abstract = "In this work a series of Eosin Y-ZnO(x\%)/TiO 2 were prepared. ZnO well dispersed on the surface of TiO 2, which improves the adsorption of Eosin Y and the excited electron to transfer to the conduction band of TiO 2. Therefore the visible light activity of 0.2\%Pt-Eosin Y-ZnO(x\%)/TiO 2 is much higher than that of the 0.2\%Pt-Eosin Y-TiO 2 and 0.2\%Pt-Eosin Y-ZnO. The 0.2\%Pt-Eosin Y-ZnO(1.5\%)/TiO 2 has the highest visible light activity among the catalysts coupled with various ZnO amount, whose activity is increased by a factor of 3.5 compared to that of 0.2\%Pt-Eosin Y-TiO 2. It is proposed that, 0.2\%Pt-Eosin Y-ZnO(1.5\%)/TiO 2 has the optimal trapping sites of carriers and thickness of the space-charge layer on the TiO 2 particle surface, so these factors result a more efficient charge separation, an increased lifetime of the charge carriers, and the enhanced of hydrogen production.",

author = "Haipei Liu and Dengwei Jing and Liejin Guo",

year = "2011",

doi = "10.1557/opl.2011.1331",

language = "英语",

isbn = "9781618395238",

series = "Materials Research Society Symposium Proceedings",

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booktitle = "Renewable Fuels and Nanotechnology",

note = "2011 MRS Spring Meeting ; Conference date: 25-04-2011 Through 29-04-2011",

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AU - Liu, Haipei

AU - Jing, Dengwei

AU - Guo, Liejin

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N2 - In this work a series of Eosin Y-ZnO(x%)/TiO 2 were prepared. ZnO well dispersed on the surface of TiO 2, which improves the adsorption of Eosin Y and the excited electron to transfer to the conduction band of TiO 2. Therefore the visible light activity of 0.2%Pt-Eosin Y-ZnO(x%)/TiO 2 is much higher than that of the 0.2%Pt-Eosin Y-TiO 2 and 0.2%Pt-Eosin Y-ZnO. The 0.2%Pt-Eosin Y-ZnO(1.5%)/TiO 2 has the highest visible light activity among the catalysts coupled with various ZnO amount, whose activity is increased by a factor of 3.5 compared to that of 0.2%Pt-Eosin Y-TiO 2. It is proposed that, 0.2%Pt-Eosin Y-ZnO(1.5%)/TiO 2 has the optimal trapping sites of carriers and thickness of the space-charge layer on the TiO 2 particle surface, so these factors result a more efficient charge separation, an increased lifetime of the charge carriers, and the enhanced of hydrogen production.

AB - In this work a series of Eosin Y-ZnO(x%)/TiO 2 were prepared. ZnO well dispersed on the surface of TiO 2, which improves the adsorption of Eosin Y and the excited electron to transfer to the conduction band of TiO 2. Therefore the visible light activity of 0.2%Pt-Eosin Y-ZnO(x%)/TiO 2 is much higher than that of the 0.2%Pt-Eosin Y-TiO 2 and 0.2%Pt-Eosin Y-ZnO. The 0.2%Pt-Eosin Y-ZnO(1.5%)/TiO 2 has the highest visible light activity among the catalysts coupled with various ZnO amount, whose activity is increased by a factor of 3.5 compared to that of 0.2%Pt-Eosin Y-TiO 2. It is proposed that, 0.2%Pt-Eosin Y-ZnO(1.5%)/TiO 2 has the optimal trapping sites of carriers and thickness of the space-charge layer on the TiO 2 particle surface, so these factors result a more efficient charge separation, an increased lifetime of the charge carriers, and the enhanced of hydrogen production.

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SN - 9781618395238

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BT - Renewable Fuels and Nanotechnology

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