In-situ construction of Bi2S3/BiOI heterojunctions with boosted photocatalytic activity

In this demonstration, Bi2S3/BiOI composites were in-situ fabricated by a routine hydrothermal approach using KI, l-cysteine and Bi (NO3)3·5H2O as raw materials. The Bi2S3/BiOI composites were studied by Brunauer–Emmett–Teller equation, X-ray diffraction, scanning electron microscopy, surface photov...

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Veröffentlicht in:Desalination and water treatment 2023-12, Vol.315, p.32-39
Hauptverfasser: Lai, Chengxu, Zhong, Junbo, Huang, Shengtian, Li, Minjiao
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Sprache:eng
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Zusammenfassung:In this demonstration, Bi2S3/BiOI composites were in-situ fabricated by a routine hydrothermal approach using KI, l-cysteine and Bi (NO3)3·5H2O as raw materials. The Bi2S3/BiOI composites were studied by Brunauer–Emmett–Teller equation, X-ray diffraction, scanning electron microscopy, surface photovoltage spectroscopy, and electrochemical test. The observations confirm that the construction of Bi2S3/BiOI composites dramatically boosts the light response capacity, and separation of photoinduced carriers. Photocatalytic behaviors of the composites were investigated and compared with the reference BiOI by the disintegration of Rhodamine B. The outcomes firmly confirm that Bi2S3/BiOI heterostructures exhibit excellent photocatalytic performance and have promising application prospects in wastewater treatment.
ISSN:1944-3986
DOI:10.5004/dwt.2023.30088