Negative ion ceramic sanitary appliance and preparation method thereof

The invention relates to a negative ion ceramic sanitary appliance which is composed of the following components in parts by weight: 23-35 parts of negative ion powder, 5-12 parts of limonite, 2-4 parts of charoite, 10-15 parts of porcelain clay, 9-13 parts of kaolin, 6-9 parts of clay, 3-7 parts of plant ash, 4-8 parts of green-bean rock and 1-3 parts of magnesium oxide. The negative ion powder is composed of the following components in parts by weight: 6-12 parts of tourmaline, 2-5 parts of monazite, 6-12 parts of apatite, 3-7 parts of fluorite, 1-3 parts of bastnaesite and 9-15 parts of granite. The negative ion ceramic sanitary appliance is suitable for production of sanitary appliances such as hand washing basins, bathtubs, toilets and squatting pans, can stably release negative ionsand neutralize positive charges carried by haze particles in air, enables the haze particles to be prone to flocculus sedimentation, and achieves the effect of purifying the air. Organic volatile gases such as formaldehyde ca