Preparation and Properties of Pressing Powders for Bioactivity Pottery Doped with Rare Earth

Pressing powders for bioactivity pottery (PPBP) were prepared using rare earth (RE), magnetic materials (MM) and other mineral materials, according to structural characteristics of water clusters, the oscillation law of molecule and bioactivity mechanism. The microstructures and bioactivity of the powders were characterized by SEM, IR, etc. The results showed that tourmaline, rare earth and magnetic materials could cooperate together to irradiate high emissive far infrared at the wave length of 500 ∼ 800 nm and exhibited good antibacterial performance, and as to the Escherichia coli ATCC25922 and Staphylococcus aureus ATCC6538, the antibacterial ratio could reach 99.65% and 98.17%, respectively. This study established a basis for the ceramic application in health protection and water activation.