Scandium is challenging and expensive to isolate in pure form using conventional solvent extraction. Now a covalent organic framework (COF) has been synthesized that can incorporate scandium coordination complexes; subsequent removal of the scandium ions generates open coordination sites, and the resulting ‘metal-imprinted’ COF can be used for highly selective, cyclable scandium capture.
- Ye Yuan
- Yajie Yang
- Guangshan Zhu
