“…As one of the most broadly studied cellulose‐based materials, cellulose−mesoporous silica nanocomposites 57 have been very attractive material combination for developing new hybrid porous materials with advanced functionalities, such as enhanced thermal stability and mechanical properties, 2,11,32,58–67 excellent thermal insulation, 2,11,32,58,60,63–67 good hydrophobicity, 2,58,60,61,66–68 and reasonable visible light transmittance 2,11,69 . However, on the best of our knowledge, no report has been available until now about the investigation of flame‐retardant performance of cellulose/modified mesoporous silica nanocomposites.…”