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- In relation to this article, we declare that there is no conflict of interest.
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Received February 16, 2019
Accepted April 1, 2019
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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An efficient near-infrared-responsive photocatalyst of flower-like Gd3+-doped WS2
Department of Chemical Engineering, Kwangwoon University, 20 Kwangwoon-ro, Nowon-gu, Seoul 01897, Korea
korea1@kw.ac.kr
Korean Journal of Chemical Engineering, May 2019, 36(5), 816-821(6), 10.1007/s11814-019-0264-4
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Abstract
To improve the utilization efficiency of sunlight, near-infrared (NIR)-responsive Gd3+-doped WS2 was prepared by a microwave-assisted solvothermal method. The microwave-assisted method required 1 h to synthesize the particles. To examine the activity of the photocatalyst under only NIR laser irradiation, its photocatalytic activities were evaluated by monitoring the degradation of Rhodamine B under 808 nm NIR laser irradiation. The NIR-responsive photocatalyst can also be used in the UV and visible light regions having shorter wavelengths than the NIR region. Photoactivity under a broader range of wavelengths can lead to more efficient photocatalytic reactions. Since NIR radiation has high permeability, the IR-photocatalytic reaction can be successfully carried out even on cloudy days or in damp environments. To prove this, the NIR laser was passed through a milk layer, following which a photocatalytic reaction experiment was conducted.
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