| abstract |
A novel silver-bearing tobermorite which can substitute for silver-, copper- or zinc-bearing zeolite, has excellent ethylene adsorptivity and antibacterial activity, and is also excellent in heat and water resistances and mechanical strengths. It has a composition represented by Ca5-Y/2AgY+ZMX-Z(Si6-XAlXO18H2).4H2O (wherein 0 « X « 1, 0.001 « Y « 2, 0 « Z « 0.1, and M represents a monovalent cation) and is produced by exchanging Ca2+ or both of Ca2+ and a monovalent cation, both being intercalated ions of tobermorite Ca¿5?MX(Si6-XAlXO18H2).4H2O (wherein 0 « X « 1 and M is as defined above), with silver ions. |