Method for preparing ultrafine silver molybdate antibacterial powder by using ultrasonic wave

• Main Authors: GUO ZHI, WU WEIHUA, ZHENG ZHIJUN, WANG QIANPING, CUI HAIBIN, HUANG ZHUANHONG, ZENG ZHIMENG
• Format: Patent
• Language: Chinese; English
• Published: 21.07.2010
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; ARTIFICIAL STONE; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; CONCRETE; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; INORGANIC CHEMISTRY; LIME, MAGNESIA; METALLURGY; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; REFRACTORIES; SLAG; TRAPPING; TREATMENT OF NATURAL STONE

The invention relates to a method for preparing ultrafine silver molybdate antibacterial powder by using ultrasonic wave. In order to prepare ultrafine silver molybdate antibacterial powder with uniform particles, silver acetate reacts with sodium molybdate to obtain the ultrafine silver molybdate antibacterial powder under the condition of ultrasonic wave. The specific steps are as follows: 50mL of sodium molybdate solution with the concentration of 0.01mol/L is slowly dropped in 95mL of silver acetate solution with the same concentration under stirring, wherein the reaction temperature is 40-60 DEG C and the reaction time is 20-30min under the condition of ultrasonic wave, then precursor precipitate is prepared by filtering and washing, the precipitate is processed by ultrasonic dispersion for 10-20min and then dried for 6-12h, and finally the ultrafine silver molybdate antibacterial powder with the grain size of 1-2mu m is prepared. The ultrasonic cavitation is utilized to disperse precipitate, thus reduci