| abstract |
The invention discloses an ultra-fast preparation method of BiOCl nanosheets co-modified with Bi nanoparticles and surface defects, comprising the steps of: ( 1 ) adding the prepared BiOCl nanosheets and a certain amount of NaN to deionized water, and magnetic stirring Mix it uniformly for 30 minutes and slowly pour it into liquid nitrogen for quick freezing and freeze-drying; (2) After the drying is completed, place the BiOCl/NaN 3 mixture in a closed high-temperature reaction kettle, and fill it with nitrogen protective gas, and use electric heating The method of wire heating causes NaN 3 to undergo deflagration reaction. After the reaction, the product is repeatedly washed with deionized water and dried, and finally BiOCl nanosheets co-modified with Bi nanoparticles and surface defects are obtained. The preparation method of the present invention has the advantages of short reaction time, the formation of BiOCl oxygen defects and the doping of Bi nanoparticles are completed at the same time, the amount of defects and doping is controllable, and the yield is high; and the equipment is simple, easy to operate, and has a good general Applicability, can be used in the preparation of other advanced materials. |