The difficulty of desorption of dimethylmethylphosphonate（DMMP）gas is one of the key technical bottleneck which restrict the development of nano-zeolite sensitive membrane.The traditional desorption method such as high-temperature desorption and blow nitrogen to dry can not effectively make the nano-zeolite films regeneration.A novel desorption method for strong polar molecule DMMP using high frequency alternate electric fields is proposed.Three kinds of nano-zeolites

Silicalite—1

ZSM—5 and Cu-ZSM—5 with different size and microstructure are synthesized.The result shows that the desorption time decreases from 20 min to 60 s and the ratio of desorption up to 85 % by using the method with the high frequency alternate electric field against traditional desorption methods.