Photocatalytic granular material and method for preparing the same

A photocatalytic granular substance with improved activity and adsorption capacity is prepared through hydrothermal synthesis and tubular crystal formation, effectively removing pathogens and organic matter, addressing the challenge of pathogen spread in enclosed spaces.

JP7885478B2Active Publication Date: 2026-07-07KOREA INST OF CIVIL ENG & BUILDING TECH
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
KOREA INST OF CIVIL ENG & BUILDING TECH
Filing Date
2022-12-22
Publication Date
2026-07-07

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Abstract

A photocatalyst modification method, a photocatalyst granular material containing photocatalyst crystals modified thereby, and a preparation method therefor are disclosed, the photocatalyst modification method comprising: hydrothermally synthesizing the photocatalyst by reacting the photocatalyst with an alkaline solution at a temperature of at least 100°C or higher to separate a monoatomic layer of the photocatalyst; and treating the hydrothermally synthesized photocatalyst so that the photocatalyst crystals have a tubular shape.
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