Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 617, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.colsurfa.2021.126318
Keywords
Nanocomposite; Laser assisted synthesis; Photo; -catalytic activity; Energy storage; Application; Super; Capacitor
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Funding
- King Fahd University of Petroleum and Minerals, Saudi Arabia [RG 181002]
- King Abdullah City for Atomic and Renewable Energy Research and Innovation Center (K.A. CARE)
- King Fahd University of Petroleum and Minerals, Dhahran
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The nanocomposites of tungsten oxide and cadmium sulfide synthesized by pulsed laser ablation in liquid showed enhanced visible light absorption and reduced electron-hole recombination, leading to efficient dye degradation under visible light.
The nanocomposites of tungsten oxide and cadmium sulfide (WO3-nCdS) with different mass ratios (n = 0 %, 5 %, 15 %, 30 % and 100 %) of CdS in WO3 were synthesized by pulsed laser ablation in liquid (PLAL). Anchoring of CdS on WO3 brought about attractive material characteristics like, enhanced visible light absorption and reduced electron-hole recombination through the z-scheme charge transfer between WO3 and CdS, which were experimentally confirmed by the absorption spectra and photoluminescence spectra respectively. These new features in the material resulted in the enhancement of photo catalytic degradation of methylene blue (MB) dye under visible light; particularly WO3-30 %CdS nanocomposite achieved complete dye degradation in 230 min. Also, when the same nanocomposite is used as an electrode material in the supercapacitor, the areal capacitance
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