1) CN201810188405.0 discloses a preparation method of lead iodide material with controllable morphology. Lead acetate trihydrate is dissolved in an acidic aqueous solution to obtain an aqueous lead acetate solution, and then potassium iodide solution is added dropwise to the aqueous lead acetate solution , after the dripping is completed, it is moved into a polytetrafluoroethylene reaction kettle and sealed, and reacted at 80 to 120° C. for 8 to 16 hours to obtain lead iodide material. The process is simple, the reaction conditions are mild, and the operation is convenient. By adjusting the content of acid, the particle size of the prepared PbI2 material can be adjusted between 1 and 60 μm, and the distribution range of particle size can be effectively adjusted. The proportion of {101} planes can be effectively controlled. The micellar particle size of PbI2 colloidal solution prepared by using PbI2 materials with different morphologies and sizes is in the range of 100-1000 nm, and the size distribution range of the micellar particle is adjustable. The morphology of PbI2 thin films prepared by solution spin coating can be effectively controlled.
2) CN201910128769.4 discloses a preparation method of a polymer-supported metalloporphyrin catalyst, comprising the following steps: (1) weighing each raw material according to the weight fraction: 30-46 parts of lead acetate trihydrate, 5-8.9 parts of thiourea parts, 220-322 parts of 1,2-propylene glycol, 5-10 parts of acrylic acid maleic anhydride copolymer, 0.022-0.029 parts of tetrafluorophenyl metalloporphyrin, 90-95 parts of absolute ethanol, 110-125 parts of cyclohexane , 133-136 parts of cadmium nitrate tetrahydrate, 34-36 parts of thioacetamide, 220-240 parts of deionized water; (2) add lead acetate trihydrate, thiourea, 1,2-propanediol to the ultrasonic generator , add an appropriate amount of water to dissolve it to obtain a suspension; (3) mix the above suspension, acrylic acid maleic anhydride copolymer, tetrafluorophenyl metalloporphyrin, cyclohexane, cadmium nitrate tetrahydrate, thioacetamide Add the ball mill, then add ionized water and stir to obtain a paste; (4) microwave dry the paste at 110-130°C for 2-4h, grind it into powder after drying, and roast it for 6-8h to obtain the catalyst. The catalyst has high catalytic activity.
3) CN201911172923.4 discloses a room temperature solid-phase synthesis method of basic lead chloride material, comprising the following steps: placing lead acetate trihydrate, sodium hydroxide, ammonium chloride and additives in an agate mortar, at room temperature Fully grind for 1-2h to make the reaction complete. The mass ratio of lead acetate trihydrate, sodium hydroxide, ammonium chloride and additives is 3.31:(1-1.5):(0.6-1.5):(0-1). After grinding, the product was repeatedly washed and filtered with deionized water and absolute ethanol until the pH value of the filtered deionized water was neutral; the obtained product was dried in an oven at 60-90 ° C for 10 -12h to obtain basic lead chloride material. The method of the invention has simple process, low cost and strong operability, and can obtain single-phase pure zinc oxide whisker material at lower temperature and shorter holding time.
