Synthesis and Application of ZnO-CaO Nanocomposite on Passive Defense

In this investigation CaO-ZnO nanocomposite has been fabricated by a sol-gel pyrrolysis method. The morphology and the structure of samples have been studied by SEM, EDX & XRD. The obtained results show, each particle of nanocomposit has been made of a CaO core which is completely covered by ZnO layers. The average diameter of synthesized nanocomposites calculated 33 nm. The decontamination reaction of dimethylmethyl phosphonate (DMMP) by ZnO-CaO nanocomposites have been studied by 31PNMR and FTIR techniques. Results of this research show, DMMP is decontaminated perfectly by ZnO-CaO nanocomposites after 24 hours and rate constant of decontamination reaction at room temperature have been calculated 4.60× 10-5 s-1 and half life has found 1.51× 10+5 s-1. Rate constant has been investigated at different temperatures and the effects of this research on passive defense have also undergone investigated.