Engineering Trap Distribution by Doping Rare Earth Ion for Mechanoluminescence Enhancementsource:ACSPublicationsMechanoluminescence materials exhibit fascinating optical properties due to their energy harvesting and controllable release capabilities. SrAl2O4:Eu2+ (SAOE) has been extensively studied as a traditional mechanoluminescence material, however, the luminescence intensity enhancement and the luminescence mechanism of its mechanoluminescence remain an unresolved issue, which hinders the development and widespread application of excellent phosphors. Herein, a promising rare earth (Re3+ =...
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2025
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A novel extraction model optimization with effective separation coefficient for rare earth extraction process using improve differential evolution source:scientific reportsThe mechanistic model of the rare earth extraction process neglects the efficacy of the agitator within the extraction extractor. This oversight results in a significant discrepancy between the theoretical solute concentration at each stage and the actual process data. To rectify this issue, we introduce an effective separation coefficient, thereby enabling the creation of a model capable of accurately determining the c...
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2025
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source:Murdoch UniversityProdigious siblings can be annoying. All too often, they steal the spotlight and cast behind them an infuriating shadow of achievement and high expectation. The same is true in mineralogy, where some minerals have long existed in the shadow of their illustrious kin.For instance, when asked to name a phosphate mineral enriched in rare earth elements (REEs, lanthanum to lutetium, yttrium and scandium), most geoscientists will say monazite (REEPO)—a global superstar of geochronology, nuclear waste storage and critical rare earth element mineralization that forms across ma...
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2025
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source:ACS PublicationsRare earth elements (REEs) are critical for modern technologies but are rarely recycled, with less than 1% recovered from waste products. Yttrium, a key component in fluorescent lamps and light emitting diodes, poses particular recycling challenges despite its high concentration in such materials. Here, we present an innovative bioleaching approach for yttrium recovery using the fermented tea beverage Kombucha in the context of science communication and outreach. Kombucha contains organic acid producing microorganisms, which can mobilize yttrium from a model phosphor mix...
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2025
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