Photocatalytic degradation of organic dye on porous iron sulfide film surface

Boosting Photocatalytic Activity Using Carbon Nitride Based 2D/2D van der Waals Heterojunctions

“…Iron-based binary chalcogenides such as iron pyrite (FeS 2 ; iron disulfide) and FeSe 2 can absorb a major fraction of electromagnetic radiation in the UV–visible to NIR region and thus found applications in many photocatalytic and electronic applications. − The representative member FeS 2 has an indirect band gap of ≈1.0 eV (2-fold high photon absorption coefficient, 10 5 cm –1 more than silicon), high carrier mobility, and a theoretical power conversion efficiency of 28% and can be easily synthesized using earth-abundant chemicals like iron (∼5% of the earth’s crust) and sulfur (0.042% of the earth’s crust) sources such as sulfur powder, Na 2 S, thiourea, thioacetamide, etc. , FeS 2 has been widely investigated for solar cell application and heterojunction photocatalysis with numerous inorganic and organic semiconductors. Unfortunately, the performance of FeS 2 is plagued by prodigious charge recombination in grain boundaries and surface defects.…”

Visible-light-driven inactivation of Escherichia coli K-12 over thermal treated natural pyrrhotite

“…Consequently, the selection and development of this type of photocatalysts are urgently needed. Pyrrhotite (Fe 1−x S) with good optical absorption ability (˛= 6 × 10 5 cm −1 ) has been widely used in solar cell and photovoltaics [6,7], and developed as a photocatalyst for pollutant degradation [8][9][10]. But in mineral processing industry, the economic value of natural pyrrhotite was considered to be not as high as other sulfides.…”

Lipid extraction and esterification for microalgae-based biodiesel production using pyrite (FeS2)

“…Natural weathering of pyrite is estimated to occur at the rate of 36 Mt/yr (Garrels et al, 1973), involving 0.02 mol of electrons per square meter of land-surface area (Wehrli, 1990). In fact, pyrite has been successfully used as a low cost iron source for the Fenton-mediated oxidation of contaminants such as trichloroethylene (TCE) and organic components including nucleic acid (Bhar et al, 2013;Cohn et al, 2006).…”