Photocatalytic activity of Bi2S3 enlargement by decoration of silver for visible light thiophene degradation

The synergistic degradation of pollutants in water by photocatalysis and PMS activation

“…However, these semiconductor photocatalysts commonly exhibit characteristics such as a narrow light absorption range, wide band gap, and high electron–hole recombination efficiency. To address these limitations, researchers have proposed various strategies, such as metal doping (Huang et al, 2015; Li et al, 2013; Osaki et al, 2019), nonmetallic doping (Bai et al, 2022; Kuo et al, 2021), noble metal deposition (Hara et al, 2003; Tang, Zhao, et al, 2022; Yao et al, 2011), surface modification (Chang & Cho, 2016; Chankhanittha et al, 2021; Mkhalid, 2018), and the formation of heterojunctions (Joseph et al, 2021; Yang et al, 2020; Yao et al, 2011; Zheng et al, 2020). We utilized the “Web of Science” database to conduct a keyword search using terms such as “Photocatalysis,” “degradation of pollutants in water,” and a specific year (e.g., 2013) to evaluate the research landscape in the field of photocatalysis.…”

Bi2S3/ZnS heterostructures for H2S sensing in the dark: the synergy of increased surface-adsorbed oxygen and charge transfer

“…7,10,11 Many reported 2D metal chalcogenides, such as SnS 2 and SnSe 2 , are often used as NO 2 sensing materials. [12][13][14][15] Benefiting from the favourable bandgap, abundant active sites, and remarkable electrical properties, 16 Bi 2 S 3 has drawn great attention as a developing functional material for diverse applications like thermoelectrics, 17 photocatalysts, 18 and solar cells. 19 Recently, a small amount of Bi 2 S 3 modified SnS 2 was demonstrated to show high selectivity to H 2 S under dark conditions, 20 and SnS 2 itself is a material with specific adsorption onto NO 2 , indicating that Bi 2 S 3 is a potential material which can respond to H 2 S. However, when pure Bi 2 S 3 is used as a sensor for sensing H 2 S at room temperature, the sensing response is still not high enough to meet the demand for practical applications.…”