ISO 22601 is an international standard on fine ceramics which covers a test method for the determination of phenol oxidative decomposition performance of semiconducting photocatalytic materials by quantitative analysis of total organic carbon (TOC).
ISO 22601 provides a testing method for testing phenol oxidative decomposition performance of semiconducting photocatalytic materials or made of a material adsorbed with photocatalyst to its surface for the purpose of purifying water polluting substances in water making use of photocatalytic performance as test piece.
The test piece can be planar, spherical, flake or block shape. A test piece that can elute hydrocarbon or the like by immersion into water or phenol aqueous solution or by light irradiation, a semiconducting photocatalytic material that cannot maintain its shape or a powdery semiconducting photocatalytic material are excluded from the scope of application, since they cannot be evaluated.
ISO 22601 on fine ceramics is useful for:
Since photocatalysts have a wide range of functions such as purification of air or water, antibacterial effect and self-cleaning, many application products that make use of said functions are developed. Photocatalyst-applied products for water purification are expected to exert oxidative decomposing performance against organic compounds composed of hydrocarbon, which is a water polluting substance. In line with this, there is a necessity for developing a testing method for measuring the oxidative decomposition against water polluting substances.
ISO 22601 stipulates a test method for measuring the performance of a semiconducting photocatalytic material irradiated with UV light in water for the oxidative decomposition of hydrocarbon such as phenol and the byproducts as intermediate produced by the photocatalysis, by the TOC method.
ISO 22601 walks us through a testing method for testing phenol oxidative decomposition performance of semiconducting photocatalytic materials which can help you in the water purification process and measuring the oxidative decomposition against water polluting substances.
ISO 22601