Novel mesoporous melamine-rich covalent organic polymer/cupric oxide-based microgel beads as promising robust heterogeneous nanocatalyst for highly efficient catalytic reduction of emerging water pollutants: In-situ and Ex-situ investigations

The present work focused on employing the advantages of novel porous melamine-rich covalent organic polymer (MCOP)-nano cupric oxide (CuO)–based heterogeneous catalysts for catalytic reduction of aromatic nitro compounds (p-nitrophenol, o-nitrophenol), toxic dyes (rhodamine B, methylene blue, congo red, methyl orange), and heavy metal ions (chromium(VI)). To improve the recyclability and stability of the MCOP@CuO hybrids and prevent secondary contamination by them in the water, microgel beads based on the green polymeric substrate were developed. Outstanding catalytic activity, separability, stability, as well as reusability were observed. Such microgel-based catalysts will expose an innovative frontier on design materials for different potential requests such as treating toxic organic pollutants.