PHOTOCATALYST MATERIAL AND METHOD FOR PRODUCING THE SAME

• Main Authors: NISHINAKA HIROYUKI, AOYAMA TOSHIYA, MATSUBAYASHI MASAKAZU, OKAZAKI SHINYA
• Format: Patent
• Language: English; Japanese
• Published: 10.09.2015
• Subjects: CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; HUMAN NECESSITIES; HYGIENE; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR RELEVANT APPARATUS; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a photocatalyst material which has alkali resistance and is suppressed in deterioration of the photocatalyst performance due to poisoning, and a method for producing the photocatalyst material.SOLUTION: A photocatalyst material (1A) according to one embodiment of the present invention comprises core particles (2) that contain tungsten oxide, a promoter (4) that is formed on the surface of each core particle (2), and a shell layer (3) that is formed of titanium oxide and covers the entire surfaces of each core particle (2) and the promoter (4). 【課題】アルカリ耐性を有し、かつ被毒作用による光触媒性能の劣化の少ない光触媒材料およびその製造方法を提供する。【解決手段】本発明の一形態の光触媒材料（１Ａ）は、酸化タングステンを含むコア粒子（２）と、コア粒子（２）の表面に形成された助触媒（４）と、酸化チタンから構成され、コア粒子（２）および助触媒（４）の表面全体を被覆するシェル層（３）とから構成されている。【選択図】図１