| 摘要 |
PURPOSE: Cation-exchanged natrolite and a method for manufacturing the same are provided to obtain various cation-exchanged natrolite of improved crystalline structures and material characteristics by using potassium-substituted natrolite and nitrate containing various cations. CONSTITUTION: A method for manufacturing cation-exchanged natrolite includes the following: A potassium nitrate aqueous solution and natrolite are mixed to obtain a natrolite mixed aqueous solution. The natrolite mixed aqueous solution is heated to obtain potassium-substituted natrolite. A nitrate aqueous solution and the potassium-substituted natrolite are mixed to obtain a mixed aqueous solution. The mixed aqueous solution is heated. The nitrate aqueous solution is one selected from a group including RbNO_3, CsNO_3, CdNO_3, Pb(NO_3)_2, Ca(NO_3)_2, Ba(NO_3)_2, and NH_4NO_3. In the cation-exchanged natrolite, the cation is one selected from a group including Rb, Cs, Cd, Pb, Ca, Ba, and NH_4. |
