Compared study on the cellulose/CaCO3 composites via microwave-assisted method using different cellulose types

► Cellulose/CaCO3 composites were fabricated by microwave-assisted method. ► Effect of alkali extraction cellulose and microcrystalline cellulose was researched. ► The types of cellulose had an effect on the microstructure and shape of composites. ► Raman spectra of cellulose/CaCO3 composites were investigated.