Abstract
A class of alkaline earth metal-based metal–organic frameworks (MOFs), namely NDCMOF(Ca) and NDCMOF(Sr), has been synthesized using 2,6-naphthalenedicarboxylic acid (NDC) as the linker. In view of the biocompatibility of the starting materials, these MOFs are expected to be environmentally benign and, in this work, have been employed for the removal of copper(II) ions (Cu2+) from aqueous systems. The results showed that the maximum adsorption capacities of NDCMOF(Ca) and NDCMOF(Sr) for Cu2+ were 299.4 and 398.4 mg g−1, respectively, which were comparable to those of related MOFs and porous materials. Meanwhile, NDCMOF(Ca) and NDCMOF(Sr) displayed blue luminescence in the solid state at room temperature upon photoexcitation with ultraviolet (UV) light. This emission would be readily quenched after the adsorption of Cu2+ ions. Such visible changes in the observed color and emission of the MOFs have rendered them versatile adsorbents and sensors for Cu2+ in the aqueous environment.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
