Metal‐Organic‐Framework Based Functional Materials for Uranium Recovery: Performance Optimization and Structure/Functionality‐Activity Relationships

Abstract

Uranium recovery has profound significance in both uranium resource acquisition and pollution treatment. In recent years, metal‐organic frameworks (MOFs) have attracted much attention as potential uranium adsorbents owing to their tunable structural topology and designable functionalities. This review explores the research progress in representative classic MOFs (MIL‐101, UiO‐66, ZIF‐8/ZIF‐67) and other advanced MOF‐based materials for efficient uranium extraction in aqueous or seawater environments. The uranium uptake mechanism of the MOF‐based materials is refined, and the structure/functionality‐property relationship is further systematically elucidated. By summarizing the typical functionalization and structure design methods, the performance improvement strategies for MOF‐based adsorbents are emphasized. Finally, the present challenges and potential opportunities are proposed for the breakthrough of high‐performance MOF‐based materials in uranium extraction.

Microwave-Assisted Synthesis of Porous Composites MOF–Textile for the Protection against Chemical and Nuclear Hazards

“…45 Their combination with graphene oxide, the urea porous organic polymer or chitosan, and polyvinyl alcohol, for example, gave even higher values (188, 278, and 316.5 mg g −1 respectively). 47,48,64,65 Concerning composites of textile−MOFs, the first study used HKUST-1 on cotton to adsorb up to 241 mg g −1 U(VI), but the exact deposition conditions of HKUST-1 were not detailed by the authors (no information about the surface area, XRD, ML, ...). 66 However, data concerning the sorption properties of UiO-n deposited on fabrics are not yet documented.…”

Logic-Based Diagnostic and Therapeutic Nanoplatform with Infection and Inflammation Monitoring and Microenvironmental Regulation Accelerating Wound Repair

“…At the initial stage of healing, the microenvironment of the wound is hampered by the existing bacterial pathogens, as they produce destructive enzymes and toxins, leading to a weakly acidic microenvironment and promoting chronic inflammation and delayed healing. − Therefore, the paramount importance for a platform targeting wound healing is reliable antimicrobial property. − As a type of metal–organic frameworks, ZIF-8 has been widely investigated in biomedicine fields, owing to pH sensitivity, outstanding biocompatibility safety, and excellent antibacterial property. ,− Liu and her team introduced ZIF-8 into a catechol–chitosan hydrogel, and the fabricated bone adhesive showed strengthened antibacterial efficiency . Consequently, it is suitable to use ZIF-8 for detecting the pH change in infectious wound and exerting an antimicrobial function at the infection stage.…”

Synthesis of core–shell magnetic metal organic framework composite for the efficient removal of uranium(vi)

“…1 Compared with other conventional adsorbents, metal organic frameworks (MOFs) have attracted attention from many scholars in the field of adsorption and separation in recent years due to their characteristics of high porosity, adjustable pore size, high specific surface area, special metal centre and diverse structure. [15][16][17][18] However, the poor water stability and difficult separation of MOF-based materials are the major limiting factors in their application in areas related to wastewater treatment. 19 Based on the stable Zr 6 O 4 (OH) 4 (CO 2 ) 12 inorganic building brick, the UiO series not only has good thermal and mechanical stability, but also strong chemical stability.…”