Multiple cobalt active sites evenly embedded in mesoporous carbon nanospheres derived from a polymer-metal-organic framework: efficient removal and photodegradation of malachite green.

ABSTRACT: A series of robust photocatalysts of mesoporous carbon nanospheres embedded with multiple cobalt active sites (Co/Co _x O _y @mC) have been constructed for efficient removal and photodegradation of malachite green (MG). Here, a cobalt-based polymeric-metal-organic framework (polyMOF(Co)) was constructed by using a polyether ligand containing 1,4-benzenedicarboxylic acid units. Afterward, polyMOF(Co) was calcined into a series of Co/Co _x O _y @mC hybrids at diverse high temperatures (400, 600, and 800 °C) under a N₂ atmosphere. Therefore, Co coordination centers were transformed into various active sites such as Co, CoO, and Co₃O₄, which were embedded within the mesoporous carbon network de

SUBMITTER: Zhang S 

PROVIDER: S-EPMC9648500 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature