▎ 摘　　要

NOVELTY - Producing a metal supported composite comprises preparing a first composite particle by combining the first porous carrier and the first metal catalyst, preparing a second composite particle by combining the second porous carrier and the second metal catalyst, and obtaining a metal-supporting composite by mixing the first composite particle and the second composite particle. The first or second composite particle is prepared by supplying the first or second porous carrier and the first or second metal catalyst to a plasma device and raising the temperature of the plasma device. USE - The metal supported composite is useful in cat litter for preventing bacteria e.g. Listeria monocytogenes, Escherichia coli, Bacillus cereus, Salmonella typhimurium, Staphylococcus aureus, and Klebsiella pneumoniae and deodorizing (all claimed). ADVANTAGE - The metal supported composite removes toxic gases quickly. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for metal supported composite prepared by above mentioned method.