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2022
DOI: 10.3390/catal12070728
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Indoor Air Photocatalytic Decontamination by UV–Vis Activated CuS/SnO2/WO3 Heterostructure

Abstract: A titania-free heterostructure based on CuS/SnO2/WO3 was obtained by a three-step sol–gel method followed by spray deposition on the glass substrate. The samples exhibit crystalline structures and homogenous composition. The WO3 single-component sample morphology consists of fibers that serve as the substrate for SnO2 development. The CuS/SnO2/WO3 heterostructure is characterized by a dense granular morphology. Photocatalytic activity was evaluated under UV–Vis radiation and indicates that the WO3 single-compo… Show more

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Cited by 6 publications
(2 citation statements)
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“…An interesting correlation emerges where increases in the Au concentration, calcination duration, and calcination temperature reduce the band gap energy. These measured band gap energies correspond closely with values reported in previous studies, demonstrating a consistent pattern with our work. The reduction of band gap can be elucidated by the presence of intermediate states within the conduction and valence bands of the WO 3 host structure. The reduction in band gap energy can be explicated through the introduction of intermediary energy states within the conduction and valence bands of the host matrix with additional Au.…”
Section: Resultssupporting
confidence: 92%
“…An interesting correlation emerges where increases in the Au concentration, calcination duration, and calcination temperature reduce the band gap energy. These measured band gap energies correspond closely with values reported in previous studies, demonstrating a consistent pattern with our work. The reduction of band gap can be elucidated by the presence of intermediate states within the conduction and valence bands of the WO 3 host structure. The reduction in band gap energy can be explicated through the introduction of intermediary energy states within the conduction and valence bands of the host matrix with additional Au.…”
Section: Resultssupporting
confidence: 92%
“…Therefore, the methods of formaldehyde detection and removal have attracted extensive attention from governments and scholars. Currently, the main ways to deal with formaldehyde are physical adsorption, photocatalytic degradation and biodegradation [3,4]. The traditional adsorption technology has a low adsorption capacity, and this shortcoming is especially obvious when the concentration of formaldehyde is low [5].…”
Section: Introductionmentioning
confidence: 99%