| abstract |
The present invention relates to a kind of Ag/g C 3 N 4 The preparation method of composite visible light catalyst.Its step is：(1) with melamine for g C 3 N 4 Raw material, be put into crucible, 550 DEG C be warming up to the rate of 10 DEG C/min in Muffle furnace, 4h, cooled to room temperature is kept to obtain faint yellow solid.(2) a certain amount of g C are weighed 3 N 4 , a certain amount of ethyl alcohol or ethylene glycol solvent is added, stirs, ultrasonic 30min.(3) 0.02~0.06mol/L AgNO are added dropwise 3 Solution stirs 30min.(4) above-mentioned solution is poured into reaction kettle, 110~140 DEG C of 3~5h of heating are cooled to room temperature, are washed with deionized water and absolute ethyl alcohol, and drying grinding obtains ash gray Ag/g C 3 N 4 Composite visible light catalyst.The visible light catalyst that the present invention obtains there is stronger visible light photocatalytic degradation activity, the simple easy-regulating of the catalyst preparation process, raw material to be easy to get rhodamine B, and production cost is low. |