1. Introduction1.1. Fly ash characteristics1.2. Carbon capture, utilization, and storage2. CO2 Capture with fly ash derived sorbents2.1. Direct application of fly ash as CO2 sorbents and support for CO2 sorbent2.2. Activated carbons from fly ash2.3. Zeolites from fly ash2.4. Mesoporous silica and aluminosilicates from fly ash3. CO2 utilization with fly ash3.1. Cement admixtures3.2. Production of amorphous silica3.3. Catalysts for CO2 conversion processes3.3.1. Dry reforming of methane3.3.2. CO2 hydrogenation3.3.3. Addition reaction of epoxides with CO24. CO2 sequestration4.1. Fly ash sequestration via the direct route4.2. Fly ash sequestration via the indirect route5. Summary and outlookReferences