Catalysts used for microwave-assisted TCE decomposition by hydrogen

Microwave-assisted trichloroethylene decomposition by hydrogen over a series of catalysts was investigated. Comparing their activity for decomposition of TCE, we found that when we chose different support, the suitble active metal for TCE decomposition was also different. If HZSM-5 was chosen as support, active metal should be Co. For X-zeolite, Fe should be chosen. For 5A, Ni was the active metal. We also found that the catalysts with Al2O3 support showed the highest activity under microwave conditions than that under conventional conditions, which was opposite to the result over SiO2 support.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch Highlights► Microwave used for TCE decomposition by hydrogen. ► There is a corresponding relationship between active metal and support. ► Microwave shows its superiority only for catalysts on Al2O3 support.