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One-pot synthesis of 3D Cu2S–MoS2 nanocomposites by an ionic liquid-assisted strategy with high photocatalytic activity

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Abstract

Novel 3D Cu2S–MoS2(x : y) nanocomposites with different proportions of Cu2S (x) and MoS2 (y) are synthesized successfully by a one-step hydrothermal method with the assistance of the ionic liquid [BMIM]SCN. The characterization results show that the nanocomposites are self-assembled from nanosheets of Cu2S and MoS2, they display nanoflower morphology and a typical mesoporous structure. The fabrication mechanism of the nanocomposites is investigated using time-dependent experiments, which indicate the key role of the ionic liquid (IL) in the synthesis process. Furthermore, TAA is used as a sulfur source instead of the IL to form a Cu2S–MoS2 nanocomposite, with the aim of further investigating the effects of the IL on the morphology of the composite. Photodegradation of MB under visible light irradiation experiments were used as probe reactions to evaluate the photocatalytic performance of the as-prepared samples. All the nanocomposites show better catalytic activity than Cu2S and MoS2 monomers. Among the different Cu2S–MoS2(x : y) nanocomposites, the Cu2S–MoS2(1 : 1) composite exhibits the most excellent photocatalytic performance and cycling stability.

Graphical abstract: One-pot synthesis of 3D Cu2S–MoS2 nanocomposites by an ionic liquid-assisted strategy with high photocatalytic activity

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Publication details

The article was received on 15 Oct 2018, accepted on 09 Nov 2018 and first published on 15 Nov 2018


Article type: Paper
DOI: 10.1039/C8NJ05229H
Citation: New J. Chem., 2019, Advance Article
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    One-pot synthesis of 3D Cu2S–MoS2 nanocomposites by an ionic liquid-assisted strategy with high photocatalytic activity

    Y. Chen, P. Su, X. Liu, H. Liu, B. Zhu, S. Zhang and W. Huang, New J. Chem., 2019, Advance Article , DOI: 10.1039/C8NJ05229H

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