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  • Lepidocrocite - an overview | ScienceDirect Topics
    Lepidocrocite is transparent and with strong red to red-orange colors and strongly pleochroic in thin section, but gray-white in reflected light where it is lighter and whiter than goethite Feroxyhyte is brown or orange-brown in color and, because of its very fine crystallite size, it is normally identified by X-ray diffraction
  • Immobilization and transformation behavior of V(IV) and V(V) by . . .
    Abstract Ferrihydrite and lepidocrocite, as abundant iron oxides in vanadium-titanium (V-Ti) magnetite, play a crucial role in regulating the migration and transformation of V species, particularly V (IV) and V (V), in the environment
  • Investigation of dye-sensitized photocatalytic uranium extraction under . . .
    4 Conclusions This study employs Rh6G-sensitized lepidocrocite-type titanate (THS-T) as a model system to systematically evaluate the feasibility, influencing factors, and underlying mechanisms of dye-sensitization strategies for the remediation of uranium-containing wastewater under visible light irradiation and aerobic conditions
  • Microbial Fe (III) reduction across a pH gradient: The impacts on . . .
    The rate and extent of Fe (III) reduction decreased with increasing pH and that lepidocrocite, with its relatively lower crystallinity compared to goethite, supported greater DIR activity Solid phase analyses revealed predominant formation of siderite alongside lepidocrocite reduction in microcosms with initial pH at 6 3 and 6 9
  • Enthalpy of water adsorption and surface enthalpy of lepidocrocite (γ . . .
    In this contribution, we report the surface thermodynamic properties of lepidocrocite We measured enthalpy of water adsorption and enthalpy of formation of lepidocrocite samples with several different surface areas
  • On the structure of one-dimensional TiO2 lepidocrocite
    We recently reported on the synthesis of one-dimensional (1D) TiO2-based nanofilaments, (NFs) by reacting water insoluble, earth abundant, and non-tox…
  • Effects of coexisting goethite or lepidocrocite on Fe (II)-induced . . .
    Herein, we investigated the simultaneous evolution of secondary minerals and Cd speciation during Fe (II)-induced ferrihydrite transformation in the presence of goethite versus lepidocrocite The presence of goethite resulted in a more pronounced ferrihydrite transformation than lepidocrocite because goethite facilitates electron transfer
  • Which phase of iron oxyhydroxides (FeOOH) is more . . . - ScienceDirect
    For akaganeite and lepidocrocite, Alexandrov and Rosso compared the electron transport in pure and substituted iron oxyhydroxides by DFT + U calculations [46] Also, Tang and Ge investigated the mechanistic of oxygen evolution reaction on γ-FeOOH (0 1 0) under alkaline condition [47]
  • Selective Th (IV) separation and immobilization by one-dimensional . . .
    The present investigation underscores the efficacious application of quantum confined 1D lepidocrocite titanate hierarchical structures, THSs, in the selective adsorption and immobilization of Th (IV) from aqueous solutions
  • Biomineralization of lepidocrocite and goethite by nitrate-reducing Fe . . .
    After the formation of roughly similar abundances of lepidocrocite and goethite at 9 h, lepidocrocite grew more rapidly and to a far greater extent compared to goethite, whose concentration leveled off by 20 h After 36 h, the primary Fe (III) mineral formed was lepidocrocite, consistent with the strong orange color of the suspension





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