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Enhanced Photocatalytic Performance under Visible and Near-Infrared Irradiation of Cu1.8Se/Cu3Se2 Composite via a Phase Junction

State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
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Academic Editors: Hongqi Sun and Zhaohui Wang
Nanomaterials 2017, 7(1), 19; https://doi.org/10.3390/nano7010019
Received: 14 November 2016 / Revised: 2 January 2017 / Accepted: 10 January 2017 / Published: 18 January 2017
(This article belongs to the Special Issue Nanoscale in Photocatalysis)
A novel Cu1.8Se/Cu3Se2 composite photocatalyst was prepared by the simple precipitation method. This composite possesses a wide photoabsorption until the range of near-infrared light, and exhibits significantly enhanced photocatalytic activity for methyl orange degradation under visible and near-infrared light irradiation compared with bare Cu1.8Se and Cu3Se2. The mechanism of this outstanding photocatalytic behavior can be explained by the calculated energy band positions. The efficient charge separation via a phase junction of Cu1.8Se/Cu3Se2 composite would make a great contribution to its much-enhanced photocatalytic efficiency. View Full-Text
Keywords: Cu1.8Se/Cu3Se2 composite; visible; near-infrared; photocatalysis; phase junction Cu1.8Se/Cu3Se2 composite; visible; near-infrared; photocatalysis; phase junction
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MDPI and ACS Style

Qiao, L.-N.; Wang, H.-C.; Shen, Y.; Lin, Y.-H.; Nan, C.-W. Enhanced Photocatalytic Performance under Visible and Near-Infrared Irradiation of Cu1.8Se/Cu3Se2 Composite via a Phase Junction. Nanomaterials 2017, 7, 19.

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