LAUSR

The use of bamboo for the fabrication of cellulose nanoparticles (CNs) in a facile and mild process is limited because of the existence of strong hydrogen bonding between the cellulose chains. Inspired by the synergistic effects of mechanochemistry, efficient cleavage of the strong hydrogen bonds and green manufacture of CNs with a high yield of 90.8% were realized through a shearing-assisted solvent pretreatment and a subsequent mechanochemical synergy process. In the one-pot tandem reaction, chemical action, thermodynamic interaction, and mechanical force induced by mechanochemistry created synergy to accelerate the dissociation of hydrogen bonds and ultimately regulate the disintegration of cellulose into nanofibers. The CNs showed special granular morphology and cellulose II crystal form. This method of process intensification diminished laborious intermediate purification steps and improved effectively the reaction efficiency. Thus, the study provides a facile and green approach for the large-scale production of CNs, and is expected to carry significant benefits in terms of economy and sustainability.