PROBLEM TO BE SOLVED: To provide a decomposition catalyst for hydrogen peroxide capable of sufficiently sterilizing contact lens as well as sufficiently reducing hydrogen peroxide residual concentration after a predetermined time has passed when being coexisted with contact lens in hydrogen peroxide solution and being manufactured simply.SOLUTION: There is provided a decomposition catalyst of hydrogen peroxide for sterilization of contact lens containing a carrier and a fine particle containing platinum fixed on a surface of the carrier and having average particle diameter of the fine particle of 1000 nm or less, preferably 300 nm or less. There is provided a catalyst having platinum carrying weight of 1 μg to 300 μg. There is provided a manufacturing method of the decomposition catalyst of hydrogen peroxide for sterilization of contact lens including contacting a solution for irradiation containing a platinum ion with a carrier to adhere the solution for irradiation to the carrier and irradiating electron beam to the carrier to which the solution for irradiation is adhered to fix the fine particle containing platinum to the carrier surface.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】過酸化水素溶液中にコンタクトレンズと共存させた際に、コンタクトレンズを十分に消毒できるとともに、所定時間経過後には過酸化水素残留濃度を十分に低減でき、かつ、簡便に製造され得る過酸化水素の分解触媒の提供。【解決手段】担体と、該担体表面に固定化された白金を含む微粒子と、を含み、該微粒子の平均粒子径が、1000nm以下、好ましくは300nm以下である、コンタクトレンズ消毒用過酸化水素の分解触媒。亦白金担持重量が、1μg~300μgである、触媒。白金イオンを含む照射用溶液を担体に接触させて、該照射用溶液を該担体に付着させること、及び該照射用溶液が付着した担体に電子線を照射して、白金を含む微粒子を該担体表面に固定化すること、を含む、コンタクトレンズ消毒用過酸化水素の分解触媒の製造方法。【選択図】図1
