Valorisation of acid mine drainage: Studying biosorption and bioaccumulation of rare earth elements by seaweeds source:sciencedirectAbstractAcid mine drainage (AMD) nature, persistence and the considerable amount of toxic elements cause significant environmental damage. Traditional passive treatment systems typically focus on neutralizing AMD using limestone and removing common toxic metal(loid)s, and often overlook the recovery of economic and strategic elements (e.g., rare earth elements (REEs)). This study is aimed at assessing for the first time the use of seaweeds to remove REEs from...
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2024
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source:phys.orgLight alkanes are relatively simple molecules made entirely of carbon and hydrogen, arranged in linear or branching structures. Their oxidized counterparts, which include alcohols, epoxides, ketones, and aldehydes, are ubiquitous in the chemical industry, as they serve as essential starting materials in the synthesis of commodity substances, fine chemicals, agrochemicals, and pharmaceuticals. However, the selective oxidation of light alkanes remains a significant challenge.To date, scientists have explored various types of catalysts for this task. Although some offer decent perf...
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2024
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source:TOHOKU UNIVERSITYA groundbreaking discovery by an international team of scientists has revealed room-temperature ferroelectric and resistive switching behaviors in single-element tellurium (Te) nanowires, paving the way for advancements in ultrahigh-density data storage and neuromorphic computing.Published in Nature Communications, this research marks the first experimental evidence of ferroelectricity in Te nanowires, a single-element material, which was previously predicted only in theoretical models."Ferroelectric materials are substances that can store electrical charge and kee...
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2024
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source:miningCritical Metals Corp (Nasdaq: CRML) says drilling at its Tanbreez project in southern Greenland has led to the discovery of one of the world’s highest concentrations of gallium, further demonstrating the value of what is already a world-class rare earth asset.By total resource count, Tanbreez is currently ranked the largest rare earth deposit in the world at 28.2 million tonnes of total rare earth oxides (TREO), contained within 4.7 billion tonnes of material. This resource is expected to contain over 27% heavy rare earth elements (HREE), which carry higher value than light rare e...
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2024
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