A Novel application of Cu2FeSnS4 particles prepared by solvothermal route as solar photo-Fenton catalyst

Photo-assisted degradation of organic pollutant by CuFeS2 powder in RGB-LED reactors: A comprehensive study of band gap values and the relation between wavelength and electron-hole recombination

“…6d). The intensity of a very important peak, at m/z 158, increases from 15 to 30 min of reaction, indicating an effective cleavage of the azo bond (N = N), leading to the formation of benzene sulfonic acid [16]. The same peak at m/z 158 decreases between 30 and 60 min, demonstrating its conversion to smaller molecules, which appear in greater quantity.…”

“…Amongst low band-gap catalysts, chalcogenides are wellestablished materials [10][11][12][13], constituted by at least one atom of S, Se, or Te, such as chalcopyrite (CuFeS 2 ). Despite being well known for its conductivity and unusual electrical and magnetic properties, the use of CuFeS 2 as an environmental catalyst is poorly explored [14][15][16]. However, its mixed valence of copper and iron is very promising due to the highly effective electron transfer on its surface [16].…”

“…Despite being well known for its conductivity and unusual electrical and magnetic properties, the use of CuFeS 2 as an environmental catalyst is poorly explored [14][15][16]. However, its mixed valence of copper and iron is very promising due to the highly effective electron transfer on its surface [16]. In addition, CuFeS 2 is a visible-light-activated photocatalyst with a very low band-gap energy, smaller than 1 eV [15,17], and its copper atoms can also decompose H 2 O 2 into reactive oxygen species (ROS) [18,19].…”

Investigação Da Degradação Do Fenol Em Meio Aquoso Utilizando Peróxido De Hidrogênio E Irradiação Solar

“…The precipitate were filtered, washed with ethanol and dried under vacuum at room temperature. The characterization results of Cu 2 FeSnS 4 particles were published by Salla et al (2018).…”

“…Following this trend, Cu 2 FeSnS 4 is a semiconductor with high photocatalytic efficacy due to its high optical absorption coefficient (>104 cm −1 ) and suitable band gap (~1.5 eV) (Dong et al, 2017). In previously studies, Cu 2 FeSnS 4 has been demonstrated to be an efficient catalyst for wastewater treatment (Salla et al, 2018). However, it is still a new material with an unexplored capability in the field of AOPs expertise.…”