Crystal and electronic structures, and photoluminescence and photocatalytic properties of α-EuZrS3

Sheng-Ping Guo; Yang Chi; Jian-Ping Zou; Huai-Guo Xue

doi:10.1039/C6NJ02106A

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Crystal and electronic structures, and photoluminescence and photocatalytic properties of α-EuZrS₃†

Sheng-Ping Guo,*^a Yang Chi,^a Jian-Ping Zou^b and Huai-Guo Xue*^a

Author affiliations

* Corresponding authors

^a College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China
E-mail: spguo@yzu.edu.cn, chhgxue@yzu.edu.cn

^b Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi 330063, P. R. China

Abstract

A new phase of EuZrS₃ (α phase) was obtained via a high-temperature solid-state reaction. It crystallizes in the orthorhombic space group Pnma with a = 8.465(3), b = 3.808(1), c = 13.823(4) Å and V = 445.5(2) Å³, belonging to the NH₄CdCl₃ structure type. Its crystal structure features a 3-D network constructed by EuS₈ bicapped trigonal prisms (bctps) and Zr⁴⁺ ions that occupy the octahedral cavities. Ultraviolet-visible-near infrared band gap analysis shows an energy gap of 1.09 eV, which is verified by electronic band structure calculations. A typical photoluminescence phenomenon of Eu²⁺ can be observed at 575 nm. The photocatalytic behavior of rod-like α-EuZrS₃ crystals was investigated by decomposing methylene blue under visible light and simulated sunlight irradiation.

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Article information

DOI: https://doi.org/10.1039/C6NJ02106A
Article type: Paper
Submitted: 07 Jul 2016
Accepted: 17 Oct 2016
First published: 19 Oct 2016

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New J. Chem., 2016,40, 10219-10226

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Crystal and electronic structures, and photoluminescence and photocatalytic properties of α-EuZrS₃

S. Guo, Y. Chi, J. Zou and H. Xue, New J. Chem., 2016, 40, 10219 DOI: 10.1039/C6NJ02106A

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