▎ 摘　　要

Novel hollow graphene flowers (HGFs) are synthesized by a Cu-assisted chemical vapor deposition. Multilayer graphene films and vertical-oriented graphene nanosheets are grown on hollow silica spheres successively by controlling the CH4/H-2 flow and growth time. After graphene growth, HSS templates are removed to achieve HGFs. The pi-conjugated systems and unique morphology of HGFs lead to apparent adsorption ability for dyes and phenol molecules. This work provides a facile way to produce unique hollow structure graphene with massive edges for different applications in the future.