Ion-adsorption rare earth elements (iREE) deposits are the globally predominant source of
heavy rare earth elements (HREE), which are mainly discovered and mined in southern …

The efforts have been made to review phyllosilicate derived (clay-based) heterogeneous
catalysts for biodiesel production via lignocellulose derived feedstocks. These catalysts …

Global resources of heavy Rare Earth Elements (REE) are dominantly sourced from
Chinese regolith-hosted ion-adsorption deposits in which the REE are inferred to be weakly …

Ion-adsorption type rare earth tailings (RET), a type of solid waste that contains clay
minerals, were used as a starting material to prepare alkali-based geopolymer. The effects …

UV radiation is the main cause of skin aging and cancers. Commercial sunscreens suffer
from low efficacy and poor safety, while ceria nanocrystals are promising inorganic UV …

Abstract Development of renewable energy infrastructure requires critical raw materials,
such as the rare earth elements (REEs, including scandium) and niobium, and is driving …

Ion-adsorption type rare earth elements (REEs) located in tropical and subtropical zones
have abundant movable and bioavailable ion-exchangeable REEs and could be an …

Ion-adsorption type rare earths ore, as the primary source for middle-heavy rare earth
elements, was extracted by various electrolytes via the adsorption–desorption effect. In this …

Halloysite is a kind of 1: 1 clay mineral having a special nanosized tubular morphology and
pore structure. In this work, nanosized tubular halloysite calcined at 750° C (Hal 750) and …

Weathering of parent granite is pivotal in the formation of regolith-hosted rare earth elements
(REE) deposits, which provide over 90% of global heavy rare earth elements (HREE) …