CuS nanoparticles (CuS NPs) are used in a variety of optical, photo-chemical, and photo-electrochemical applications. An unsophisticated but efficient strategy is reported here to enhance the performance of CuS by transforming it into CuS.PbS nanocomposites (NCs). A modified successive ionic layer adsorption and reaction method was employed to combine CuS NPs with PbS quantum-dots in a qualitatively-controlled way. Resultant CuS.PbS NCs were first qualitatively investigated using scanning electron microscopy coupled with an energy-dispersive spectroscope and an X-ray diffractometer. Owing to the improved optical behavior revealed by UV–vis spectroscopy, CuS.PbS NCs were employed first for photo-catalysis and then for electro-catalysis, where optimal CuS.PbS NCs (specifically, CuS.2PbS) ensued an ∼80 % degradation of the toxic Congo red dye. Moreover, the efficacy of the controlled deposition of PbS on CuS NPs was electrochemically investigated and a significant improvement in the imperative parameters, such as the charge transfer resistance at the electrode/electrolyte interface and electron lifetime, was obtained. CuS.2PbS NCs also exhibited air-processable and heat-treatable characteristics which demarcated its suitability for paintable counter electrodes (CEs) in quantum-dot-sensitized solar cells (QDSCs).

Muhyuddin, M., Khan, T., Akram, M., Ali, I., Park, T., Basit, M. (2020). Significantly improved photo- and electro-chemical performance of CuS.PbS nanocomposites for dye degradation and paintable counter electrodes. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. A, CHEMISTRY, 400 [10.1016/j.jphotochem.2020.112720].

Significantly improved photo- and electro-chemical performance of CuS.PbS nanocomposites for dye degradation and paintable counter electrodes

Muhyuddin, Mohsin;
2020

Abstract

CuS nanoparticles (CuS NPs) are used in a variety of optical, photo-chemical, and photo-electrochemical applications. An unsophisticated but efficient strategy is reported here to enhance the performance of CuS by transforming it into CuS.PbS nanocomposites (NCs). A modified successive ionic layer adsorption and reaction method was employed to combine CuS NPs with PbS quantum-dots in a qualitatively-controlled way. Resultant CuS.PbS NCs were first qualitatively investigated using scanning electron microscopy coupled with an energy-dispersive spectroscope and an X-ray diffractometer. Owing to the improved optical behavior revealed by UV–vis spectroscopy, CuS.PbS NCs were employed first for photo-catalysis and then for electro-catalysis, where optimal CuS.PbS NCs (specifically, CuS.2PbS) ensued an ∼80 % degradation of the toxic Congo red dye. Moreover, the efficacy of the controlled deposition of PbS on CuS NPs was electrochemically investigated and a significant improvement in the imperative parameters, such as the charge transfer resistance at the electrode/electrolyte interface and electron lifetime, was obtained. CuS.2PbS NCs also exhibited air-processable and heat-treatable characteristics which demarcated its suitability for paintable counter electrodes (CEs) in quantum-dot-sensitized solar cells (QDSCs).
Articolo in rivista - Articolo scientifico
CuS-PbS nanocomposite, QDSSCs, Photocatalysis;
English
Muhyuddin, M., Khan, T., Akram, M., Ali, I., Park, T., Basit, M. (2020). Significantly improved photo- and electro-chemical performance of CuS.PbS nanocomposites for dye degradation and paintable counter electrodes. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. A, CHEMISTRY, 400 [10.1016/j.jphotochem.2020.112720].
Muhyuddin, M; Khan, T; Akram, M; Ali, I; Park, T; Basit, M
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/301519
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