期刊
SOLID STATE SCIENCES
卷 67, 期 -, 页码 99-108出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solidstatesciences.2017.03.016
关键词
Visible light; PbS/MoS2 composite; Methylene blue; Photocatalysis
A PbS/MoS2 nanocomposite was synthesized in different molar ratio of PbS 0.5%, 1.0% and 1.5% by precipitation deposition method and successfully characterized by various instrumental techniques such as UV visible diffuse reflectance spectra (DRS), X-ray diffraction (XRD), Scanning electron microscopy (SEM), Energy dispersive X-ray spectrometry (EDX), BET-surface area, photoluminescence (PL) spectroscopy. The photocatalytic activity was monitored via the degradation of methylene blue dye and the results revealed that 1% PbS/MoS2 shows better photocatalytic activity than that of 0.5%PbS/MoS2 and 1.5%PbS/MoS2. The effect of operational parameters such as pH and catalyst dosage on the photocatalytic activity was investigated. The PbS-MoS2 nanocomposite exhibit excellent photocatalytic degradation on methylene blue (MB) dye under visible light irradiation. (C) 2017 Elsevier Masson SAS. All rights reserved.
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