The invention discloses N, S co-doped
bagasse nanosheet-shaped mesoporous structure
biomass charcoal and a preparation method thereof. The appearance of the
biomass charcoal is of a sheet-shaped porous structure, the thickness of each sheet is 5-50 nm, the
pore diameter of each sheet is 6-20 nm, the surface of each sheet is similar to a
honeycomb, a large number of nanosheets with mesoporous structures are stacked together, and the
crystal form structure of the
biomass charcoal is an amorphous charcoal structure. The preparation method is as follows: removing impurities on the surface of
bagasse and
drying; adding a
potassium hydroxide solution, carrying out
hydrothermal treatment to obtain a gray flocculent precursor, carrying out
carbonization treatment under the protection of
nitrogen to obtain
bagasse nanosheet-shaped mesoporous structure biomass charcoal,
grinding and mixing the bagasse
nanosheet-shaped mesoporous structure biomass charcoal serving as a substrate and
thiourea serving as a
doping agent, and carrying out
doping treatment under
nitrogen to obtain the N and S co-doped bagasse nanosheet-shaped mesoporous structure biomass charcoal. The method is simple in step, lowin
raw material cost, low in technical difficulty, economical and
environmentally friendly, and the obtained product is stable in structure, is an amorphous
crystal structure material, and has a goodapplication prospect in the fields of
environmental remediation, soil improvement,
energy storage and shielding / wave-absorbing materials.