Results 51 to 60 of about 19,486 (279)
Supernormal enrichment of cadmium in sphalerite via coupled dissolution-reprecipitation process
Communications Earth & Environment, 2023 Supernormal enrichment of cadmium in sphalerite is frequently observed in some sedimentary-hosted zinc-lead deposits, although related fluid process remains unconstrained.
Hongyu Duan +4 more
doaj +1 more source
Geophysical investigation of the Pb-Zn deposit of Lontzen-Poppelsberg, Belgium [PDF]
, 2018 The drillhole information from the Lontzen-Poppelsberg site has demonstrated three orebodies and has allowed the estimation of the extension of the lodes, their dip, and the location at the ground surface.
Chouteau, Michel +6 more
core +5 more sources
Angewandte Chemie, EarlyView.An efficient photocatalyst of Ni doped ZnS with sulfur vacancy is designed for photocatalytic H2O2 production via two‐electron oxygen reduction reaction. The Ni and S dual sites with optimized O2 adsorption and efficient *Hads supply contributes to a high H2O2 yield of 5649.49 µmol g−1 h−1 under UV–vis light irradiation in pure water.
Yamin Xi +7 more
wiley +2 more sources
Activation of Sphalerite by Ammoniacal Copper Solution in Froth Flotation
Journal of Chemistry, 2016 The activation of sphalerite particles by ammoniacal copper solution (ACS) was investigated in this study. This microflotation study was conducted on a single sphalerite mineral with the particles size of 38 μm to 75 μm.
Xian Xie, Kai Hou, Bo Yang, Xiong Tong
doaj +1 more source
Bioleaching of pollymetallic sulphide concentrate using thermophilic bacteria [PDF]
Hemijska Industrija, 2014 An extreme thermophilic, iron-sulphur oxidising bacterial culture was isolated and adapted to tolerate high metal and solids concentrations at 70°C.
Vuković Milovan +4 more
doaj +1 more source
Exoplanet Classification and Yield Estimates for Direct Imaging Missions [PDF]
, 2018 Future NASA concept missions that are currently under study, like Habitable Exoplanet Imaging Mission (HabEx) & Large Ultra-Violet Optical Infra Red (LUVOIR) Surveyor, would discover a large diversity of exoplanets. We propose here a classification scheme that distinguishes exoplanets into different categories based on their size and incident stellar ...
arxiv +1 more source
Nanohybrid of Silver‐MXene: A Promising Sorbent for Iodine Gas Capture from Nuclear Waste
Advanced Materials Interfaces, EarlyView.Silver‐MXene (Ag‐Ti3C2Tx) nanohybrids effectively captured iodine gas at 150 °C, with Ag nanoparticles loaded onto MXene via silver nitrate reduction. Upon exposure to iodine gas, silver iodide forms, confirming successful adsorption. Ag‐Ti3C2Tx shows superior iodine uptake (946 mg g−1) compared to conventional sorbents, demonstrating its potential as ...
Karamullah Eisawi +7 more
wiley +1 more source
Zinc Contents of Mafic Micerals in Granitic Rocks, with Special Reference to Ore Chemistry [PDF]
, 2003 In order to know the reason why the Cu/Zn-Pb ratios of skarn-type deposits related with the ilmenite-series granitic rocks are markedly higher than those related with the magnetite-series, comparative mineralogical studies were carried out for the two ...
Inoue, Yoshinori +2 more
core +1 more source
Zinc Chalcogenide Based Shell Layers for Colloidal Quantum Wells
Advanced Materials Interfaces, EarlyView.A new synthetic route is developed for the synthesis of CdSe/ZnSe/ZnS multi‐shell nanoplatelets (NPLs) with emissions between 615 and 630 nm and photoluminescence quantum yields up to 90%. Control over the lateral size of the starting CdSe core enabled the narrowing of the emission linewidth to 20 nm.
Cagatay Han Aldemir +5 more
wiley +1 more source
Two-Stage Oxidative Leaching of Low-Grade Copper–Zinc Sulfide Concentrate
Microorganisms, 2022 Bioleaching may be effectively used to extract nonferrous metals from sulfide ores and concentrates. At the same time, some minerals are refractory and their bioleaching rate is often comparatively low that does not allow the required metal extraction ...
Aleksandr Bulaev, Vitaliy Melamud
doaj +1 more source