An Efficient Strategy for the Fabrication of CuS as a Highly Excellent and Recyclable Photocatalyst for the Degradation of Organic Dyes
Autor: | Wutao Wei, Na Qin, Liwei Mi, Chao Huang |
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Jazyk: | angličtina |
Rok vydání: | 2019 |
Předmět: |
Materials science
chemistry.chemical_element 02 engineering and technology 010402 general chemistry lcsh:Chemical technology 01 natural sciences Catalysis lcsh:Chemistry chemistry.chemical_compound simulated solar light Specific surface area Rhodamine B lcsh:TP1-1185 Irradiation Physical and Theoretical Chemistry organic dyes 021001 nanoscience & nanotechnology Copper 0104 chemical sciences chemistry Chemical engineering lcsh:QD1-999 Photocatalysis Degradation (geology) 0210 nano-technology cus photocatalysis Methylene blue |
Zdroj: | Catalysts, Vol 10, Iss 1, p 40 (2019) Catalysts Volume 10 Issue 1 |
ISSN: | 2073-4344 |
Popis: | An effective and practical in situ sulfuration approach has been developed in this work, for the fabrication of CuS with a 3D hierarchical network structure under mild preparation conditions. The prepared CuS consists of a primary structure of the multi-structure interchange copper foam precursor, and a secondary structure of nanoplates. The structural characteristics, morphologies, and photocatalytic performances of the prepared photocatalyst were investigated systematically. To evaluate the photocatalytic performance of the prepared CuS samples, we investigated the degradation of MB (methylene blue), RhB (Rhodamine B), and MB/RhB dye solutions over the samples under the irradiation of simulated solar light. Specifically, the degradation of RhB rapidly reached &asymp 100.0% after simulated solar light irradiation for 25 min, which is higher than those of P25 (83.0%) and bulk CuS (54.8%). For the mixed systems of MB/RhB, both the degradations of MB and RhB reached up to &asymp 99.0% after simulated solar light irradiation for 25 min. The superior photocatalytic performances of the prepared samples are attributed to the synergistic effects of high optical absorption, large specific surface area, and abundant active sites. The prepared catalysts can retain the photocatalytic activities during the entire reaction process without significant loss after four catalytic cycles, which reveals that the CuS with a stable 3D hierarchical network structure has a promising prospect as an ideal recyclable catalyst. |
Databáze: | OpenAIRE |
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