Near-infrared photocatalysis based on YF3 : Yb3+,Tm3+/TiO2 core/shell nanoparticles

Weiping Qin; Daisheng Zhang; Dan Zhao; Lili Wang; Kezhi Zheng

doi:10.1039/B924052G

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Near-infrared photocatalysis based on YF₃ : Yb³⁺,Tm³⁺/TiO₂ core/shell nanoparticles†

Weiping Qin,*^a Daisheng Zhang,^ab Dan Zhao,^a Lili Wang^a and Kezhi Zheng^a

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* Corresponding authors

^a State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, China
E-mail: wpqin@jlu.edu.cn
Fax: +86 431 8516 8241 8325
Tel: +86 431 8516 8241 8325

^b College of Physics, Beihua University, Jilin, China

Abstract

We report the novel near-infrared (NIR) photocatalysis of YF₃ : Yb³⁺,Tm³⁺/TiO₂ core/shell nanoparticles. The core/shell nanoparticles show photocatalytic activity under the NIR irradiation. This study demonstrates that the NIR energy can be used as the driving source for photocatalysis besides the UV and visible energy.

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Supplementary files

1. Synthesis of YF ₃ : Yb ³⁺,Tm ³⁺ upconversion nanocrystals; 2. Characterisation; 3. Fig. S1: Schematic energy-level diagrams of Yb ³⁺ and Tm ³⁺ ions and the upconversion mechanism excited by 980 nm laser diode; 4. Fig. S2: The absorption spectra of YF ₃ : Yb ³⁺,Tm ³⁺ NCs and YF ₃ : Yb ³⁺,Tm ³⁺/TiO ₂ NPs; 5. The comparison of the photocatalytic activities of YF ₃ : Yb ³⁺,Tm ³⁺ NCs and YF ₃ : Yb ³⁺,Tm ³⁺/TiO ₂ NPs under UV light irradiation PDF (159K)

Article information

DOI: https://doi.org/10.1039/B924052G
Article type: Communication
Submitted: 17 Nov 2009
Accepted: 08 Jan 2010
First published: 23 Jan 2010

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Chem. Commun., 2010,46, 2304-2306

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Near-infrared photocatalysis based on YF₃ : Yb³⁺,Tm³⁺/TiO₂ core/shell nanoparticles

W. Qin, D. Zhang, D. Zhao, L. Wang and K. Zheng, Chem. Commun., 2010, 46, 2304 DOI: 10.1039/B924052G

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