Fig. 1: Illustration of the synthetic procedures of IL/Co-bCN photocatalysts.
From: Improving CO2 photoconversion with ionic liquid and Co single atoms

IL: ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate ([emim][BF4]) is presented by pink oval cation and blue circle anion; bCN: boric acid modified ultrathin CN nanosheets, where borate species are presented by light blue urchin symbols; Co single atoms are presented by orange balls.