Chemically stable covalent organic framework as adsorbent from aqueous solution: A mini-review.

• Chemically stable covalent organic frameworks were introduced and documented. • Research works on use of COFs as adsorbents in lab tests were reviewed. • Research and development needs for industrial application with COF were discussed. Covalent organic frameworks (COFs) is made by covalent bonding of light elements, such as carbon, oxygen, nitrogen, boron and hydrogen, which can be flexibly synthesized as a porous material with low density, high permanent porosity and controllable sizes. This mini-review outlined the current understandings of mechanisms to yield a chemically stable COF and the use of these COFs to be adsorbents for removing adsorbates from waters. The research and development need to apply the COFs as industrial adsorbetns was discussed. [ABSTRACT FROM AUTHOR]