Research on toluene removal via layered double hydroxide based low-temperature plasma synergistic catalysis

A series of Mn containing layered double hydroxides (Mn/Mg/Al-LDH) were prepared by co-precipitation method, and their catalytic behavior on the removal of toluene via Mn/Mg/Al-LDH based low-temperature plasma synergistic catalysis was investigated. XRD and FT-IR were used to characterize the structure of the Mn/Mg/Al-LDH. The results showed that Mn/Mg/Al-LDH had a typical LDH layered structure. The catalytic behavior on removal of toluene reached higher than 90% under a specific SIE value. Catalyst characterization showed that active ingredients of MnO_x were formed on the surface of the catalyst and the catalyst had higher oxidation activity on removal of toluene, and the activity weakened after high temperature calcination.