Method for high-depth purification of heavy metals in water by utilizing titanium phosphate nano flower material
A technology of coating materials and nanoflowers, applied in chemical instruments and methods, coatings, cation exchange materials, etc., can solve the problems of mass transfer and utilization, and achieve the effect of high selectivity and large adsorption capacity
Active Publication Date: 2018-04-10
YANSHAN UNIV
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Provided is a preparation method of a titanium phosphate nano flower material. Principally, butyl titanate is used as a precursor and is dissolved in organic alcohol, meanwhile strong-acid cation-exchange resin is added, reaction is performed for 5-12 hours at the temperature of 40-60 DEG C, then a phosphoric acid solution is added, reaction is performed for 5-20 hours, three-dimensional lamellartitanium phosphate nano flowers are formed on the outer surface of the resin, and the mass fraction of the nano titanium phosphate carrying capacity is 5.8-26.3%. A method for removing trace heavy metal ions in water by using the titanium phosphate nano flower material is mainly that the temperature of heavy metal polluted water is controlled to be 5-55 DEG C, the concentration is 0.1-50 mg/L, pHis 3-7, the water flows down to pass through a fixed bed post adsorption device filled with a composite material at the flow velocity of 10-50 BV/h, and the heavy metal polluted water is efficiently purified and reached the hygienic standard for drinking water. The problems of mass transfer and utilization rate caused by nano particle blockage can be solved, and deep purification and safety control of water bodies containing heavy metals are achieved.
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