Removal of Microcystis aeruginosa by natural pyrite-activated persulfate: Performance and the significance of iron species
Sign Up to like & getrecommendations! Published in 2022 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2021.132565
Abstract: Abstract In this study, the feasibility of removing Microcystis aeruginosa by heterogeneous persulfate activation using ubiquitous natural pyrite was investigated. The results indicated the significant degradation efficiency of chlorophyll-a (over 90%) was obtained in pyrite/persulfate… read more here.
Keywords: microcystis aeruginosa; iron species; natural pyrite; pyrite ... See more keywords
Pyrite in a sulfate-poor Paleoarchean basin was derived predominantly from elemental sulfur : Evidence from 3.2 Ga sediments in the Barberton Greenstone Belt, Kaapvaal Craton
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Geology"
DOI: 10.1016/j.chemgeo.2016.12.006
Abstract: Abstract Multiple sulfur isotope variability in Archean sedimentary rocks provides constraints on the composition of the Earth’s earliest atmosphere. The magnitude and sign of mass-independent anomalies reflect not only atmospheric processes, but also transformations due… read more here.
Keywords: kaapvaal craton; greenstone belt; isotope; barberton greenstone ... See more keywords
A novel antiferromagnetic semiconductor hidden in pyrite
Sign Up to like & getrecommendations! Published in 2020 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2020.109852
Abstract: Abstract In this paper, a new two-dimensional antiferromagnetic material, 2D pyrite, was reported, which exhibited a completely planar pentagonal structure. Pentagonal FeS2 were revealed by the first-principles calculation with GGA + U (Ueff = 2 eV) method and proved excellent… read more here.
Keywords: novel antiferromagnetic; semiconductor; two dimensional; semiconductor hidden ... See more keywords
pH-dependence on HER electrocatalytic activity of iron sulfide pyrite nanoparticles
Sign Up to like & getrecommendations! Published in 2018 at "Electrochemistry Communications"
DOI: 10.1016/j.elecom.2018.04.019
Abstract: Abstract Iron sulfide pyrite (FeS2) nanoparticles are investigated for the electrocatalysis of hydrogen evolution reaction (HER) at pH values ranging from 0.3 to 13. It is evidenced that HER can be performed at any pH,… read more here.
Keywords: iron sulfide; sulfide pyrite; pyrite nanoparticles; pyrite ... See more keywords
Immobilization of hexavalent chromium in soil and groundwater using synthetic pyrite particles.
Sign Up to like & getrecommendations! Published in 2019 at "Environmental pollution"
DOI: 10.1016/j.envpol.2019.112992
Abstract: In this study, reactive pyrite (FeS2) particles were prepared through a modified hydrothermal method and tested for immobilization of Cr(VI) in contaminated soil and synthetic groundwater. The addition of a NaAc buffer in the synthetic… read more here.
Keywords: pyrite particles; pyrite; soil; fes2 ... See more keywords
Pyrite thermal decomposition in source rocks
Sign Up to like & getrecommendations! Published in 2020 at "Fuel"
DOI: 10.1016/j.fuel.2020.119529
Abstract: Abstract Sulphides, mainly pyrite, are very common minerals in source rocks for oil and natural gas. Pyrite thermal transformation is very complex process, depending on many factors affecting the decomposition reactions. Thermal decomposition of pyrite… read more here.
Keywords: rock; source; thermal decomposition; pyrite ... See more keywords
Cobalt concentration in a sulfidic sea and mobilization during orogenesis: Implications for targeting epigenetic sediment-hosted Cu-Co deposits
Sign Up to like & getrecommendations! Published in 2021 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2021.05.001
Abstract: Abstract The origin of sediment-hosted copper-cobalt deposits (SCDs) within metamorphic terranes remains contentious, particularly in regard to the timing of mineralization relative to basin evolution. Here, we link the timing of Cu-Co mineralization in the… read more here.
Keywords: mobilization orogenesis; mineralization; pyrite; sediment hosted ... See more keywords
Acid mine drainage formation and arsenic mobility under strongly acidic conditions: Importance of soluble phases, iron oxyhydroxides/oxides and nature of oxidation layer on pyrite.
Sign Up to like & getrecommendations! Published in 2020 at "Journal of hazardous materials"
DOI: 10.1016/j.jhazmat.2020.122844
Abstract: Acid mine drainage (AMD) formation and toxic arsenic (As) contamination are serious environmental problems encountered worldwide. In this study, we investigated the crucial roles played by common secondary mineral phases formed during the natural weathering… read more here.
Keywords: oxidation layer; oxidation; acid mine; pyrite ... See more keywords
Utilization of tetrasodium iminodisuccinate to eliminate the adverse effect of serpentine on the flotation of pyrite
Sign Up to like & getrecommendations! Published in 2020 at "Minerals Engineering"
DOI: 10.1016/j.mineng.2020.106235
Abstract: Abstract Flotation results demonstrated that tetrasodium iminodisuccinate (IDS) could effectively eliminate the adverse effect of serpentine on the flotation of pyrite. Furthermore, the interaction mechanism was systematically investigated through zeta potential measurements, Fourier transform infrared… read more here.
Keywords: serpentine surface; surface; flotation; spectroscopy ... See more keywords
Selective adsorption behavior and mechanism of a high-performance depressant in the flotation separation of pyrite from talcum
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Molecular Liquids"
DOI: 10.1016/j.molliq.2020.114707
Abstract: Abstract Galactomannan (GM) was used as depressant to facilitate the separation of pyrite from talcum. Compared with common depressant dextrin, GM not only possessed higher selectivity, but also GM was consumed approximately 87% lower than… read more here.
Keywords: talcum; pyrite talcum; separation pyrite; spectroscopy ... See more keywords
Electron back-scattered diffraction and LA-ICP-MS analysis of pyrite from the Dahu lodegold deposit, southern North China craton: Insights into geochemistry and distribution of trace element connection to microstructure of pyrite
Sign Up to like & getrecommendations! Published in 2019 at "Ore Geology Reviews"
DOI: 10.1016/j.oregeorev.2019.103164
Abstract: Abstract The Dahu lodegold deposit is situated in the Xiaoqinling district, hosted in the east-west-trending shear zones, and characterized by auriferous quartz vein-type. Based on the morphology and paragenetic assemblage, three generations of pyrite (termed… read more here.
Keywords: trace; geochemistry; deformation; pyrite ... See more keywords