FIELD: chemistry.
SUBSTANCE: invention can be used for preparation of detonation nanodiamonds suspension with positively charged particles. The nanodiamonds powder is dispersed with ultrasound in the saturated solution of polyvalent metals salts, the obtained mixture undergoes the thermal treatment up to drying, heated at 380-520 K during 30 min and washed with water up to ion absence in the wash water.
EFFECT: obtaining of the nanodiamonds with positively charged particles in the water suspensions at low process time and decrease of reagents toxicity.
5 ex
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