To provide an anti-viral composition, an anti-viral agent, and a photocatalyst, which exhibit excellent anti-viral property under light and in the dark a method for producing the anti-viral composition and a virus inactivation method. The anti-viral composition of the present invention contains BiVO4 and a divalent copper compound. The anti-viral agent and photocatalyst of the present invention each contain the anti-viral composition of the present invention. The anti-viral composition production method includes a mixing step of mixing BiVO4, a divalent copper compound or a divalent copper compound raw material, water, and an alkaline substance, to thereby form a mixture and a separation step of separating an anti-viral composition from the mixture. The virus inactivation method of the present invention inactivates a virus by use of the anti-viral composition of the present invention, the anti-viral agent of the present invention, or the photocatalyst of the present invention.提供在明處及暗處中表現優異的抗病毒性之抗病毒性組成物、抗病毒劑及光觸媒、該抗病毒性組成物的製造方法、以及病毒失活方法。本發明的抗病毒性組成物為含有BiVO4及2價銅化合物。本發明的抗病毒劑及光觸媒含本發明的抗病毒性組成物。本發明的抗病毒性組成物的製造方法包含將BiVO4與2價銅化合物或2價銅化合物原料與水與鹼性物質混合後製作混合物之混合步驟、及由混合物分離抗病毒性組成物之分離步驟。本發明的病毒失活方法為使用本發明的抗病毒性組成物、本發明的抗病毒劑或本發明的光觸媒,使病毒失活。
