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Kie Funakoshi - One of the best experts on this subject based on the ideXlab platform.

  • apatite coated titanium dioxide photocatalyst for Air Purification
    Catalysis Today, 2004
    Co-Authors: Takashi Nonami, Hiroyuki Hase, Kie Funakoshi
    Abstract:

    Abstract A multifunctional composite material, titanium dioxide covered with apatite, has been developed for application in Air Purification and as an antimicrobial, antifungal, and antifouling coating. This composite can absorb and decompose bacteria and various other materials. TiO2 powder was soaked in a simulated physiological solution containing phosphate ions for periods of about 1 h at 37 °C. The composite material has the following characteristics: (1) the apatite adsorbs contaminants even without exposure to light; (2) material adsorbed by the apatite is decomposed by the titanium dioxide photocatalyst on exposure to light; (3) the apatite is used as an inert spacer, allowing blending of the material with resins, organic coatings, and other organic materials; (4) though the photocatalyst requires some time to fully decompose organic materials, capture of contaminants by the apatite ensures complete decomposition.

  • Apatite-coated titanium dioxide photocatalyst for Air Purification
    Catalysis Today, 2004
    Co-Authors: Takashi Nonami, Hiroyuki Hase, Kie Funakoshi
    Abstract:

    A multifunctional composite material, titanium dioxide covered with apatite, has been developed for application in Air Purification and as an antimicrobial, antifungal, and antifouling coating. This composite can absorb and decompose bacteria and various other materials. TiO2powder was soaked in a simulated physiological solution containing phosphate ions for periods of about 1h at 37°C. The composite material has the following characteristics: (1) the apatite adsorbs contaminants even without exposure to light; (2) material adsorbed by the apatite is decomposed by the titanium dioxide photocatalyst on exposure to light; (3) the apatite is used as an inert spacer, allowing blending of the material with resins, organic coatings, and other organic materials; (4) though the photocatalyst requires some time to fully decompose organic materials, capture of contaminants by the apatite ensures complete decomposition. © 2004 Elsevier B.V. All rights reserved.

Takashi Nonami - One of the best experts on this subject based on the ideXlab platform.

  • apatite coated titanium dioxide photocatalyst for Air Purification
    Catalysis Today, 2004
    Co-Authors: Takashi Nonami, Hiroyuki Hase, Kie Funakoshi
    Abstract:

    Abstract A multifunctional composite material, titanium dioxide covered with apatite, has been developed for application in Air Purification and as an antimicrobial, antifungal, and antifouling coating. This composite can absorb and decompose bacteria and various other materials. TiO2 powder was soaked in a simulated physiological solution containing phosphate ions for periods of about 1 h at 37 °C. The composite material has the following characteristics: (1) the apatite adsorbs contaminants even without exposure to light; (2) material adsorbed by the apatite is decomposed by the titanium dioxide photocatalyst on exposure to light; (3) the apatite is used as an inert spacer, allowing blending of the material with resins, organic coatings, and other organic materials; (4) though the photocatalyst requires some time to fully decompose organic materials, capture of contaminants by the apatite ensures complete decomposition.

  • Apatite-coated titanium dioxide photocatalyst for Air Purification
    Catalysis Today, 2004
    Co-Authors: Takashi Nonami, Hiroyuki Hase, Kie Funakoshi
    Abstract:

    A multifunctional composite material, titanium dioxide covered with apatite, has been developed for application in Air Purification and as an antimicrobial, antifungal, and antifouling coating. This composite can absorb and decompose bacteria and various other materials. TiO2powder was soaked in a simulated physiological solution containing phosphate ions for periods of about 1h at 37°C. The composite material has the following characteristics: (1) the apatite adsorbs contaminants even without exposure to light; (2) material adsorbed by the apatite is decomposed by the titanium dioxide photocatalyst on exposure to light; (3) the apatite is used as an inert spacer, allowing blending of the material with resins, organic coatings, and other organic materials; (4) though the photocatalyst requires some time to fully decompose organic materials, capture of contaminants by the apatite ensures complete decomposition. © 2004 Elsevier B.V. All rights reserved.

Hiroyuki Hase - One of the best experts on this subject based on the ideXlab platform.

  • apatite coated titanium dioxide photocatalyst for Air Purification
    Catalysis Today, 2004
    Co-Authors: Takashi Nonami, Hiroyuki Hase, Kie Funakoshi
    Abstract:

    Abstract A multifunctional composite material, titanium dioxide covered with apatite, has been developed for application in Air Purification and as an antimicrobial, antifungal, and antifouling coating. This composite can absorb and decompose bacteria and various other materials. TiO2 powder was soaked in a simulated physiological solution containing phosphate ions for periods of about 1 h at 37 °C. The composite material has the following characteristics: (1) the apatite adsorbs contaminants even without exposure to light; (2) material adsorbed by the apatite is decomposed by the titanium dioxide photocatalyst on exposure to light; (3) the apatite is used as an inert spacer, allowing blending of the material with resins, organic coatings, and other organic materials; (4) though the photocatalyst requires some time to fully decompose organic materials, capture of contaminants by the apatite ensures complete decomposition.

  • Apatite-coated titanium dioxide photocatalyst for Air Purification
    Catalysis Today, 2004
    Co-Authors: Takashi Nonami, Hiroyuki Hase, Kie Funakoshi
    Abstract:

    A multifunctional composite material, titanium dioxide covered with apatite, has been developed for application in Air Purification and as an antimicrobial, antifungal, and antifouling coating. This composite can absorb and decompose bacteria and various other materials. TiO2powder was soaked in a simulated physiological solution containing phosphate ions for periods of about 1h at 37°C. The composite material has the following characteristics: (1) the apatite adsorbs contaminants even without exposure to light; (2) material adsorbed by the apatite is decomposed by the titanium dioxide photocatalyst on exposure to light; (3) the apatite is used as an inert spacer, allowing blending of the material with resins, organic coatings, and other organic materials; (4) though the photocatalyst requires some time to fully decompose organic materials, capture of contaminants by the apatite ensures complete decomposition. © 2004 Elsevier B.V. All rights reserved.

Hjh Jos Brouwers - One of the best experts on this subject based on the ideXlab platform.

  • indoor Air Purification using heterogeneous photocatalytic oxidation part i experimental study
    Applied Catalysis B-environmental, 2009
    Co-Authors: Qingliang Q Yu, Hjh Jos Brouwers
    Abstract:

    Heterogeneous photocatalytic oxidation (PCO) has shown to be a promising Air purifying technology in outdoor conditions using TiO2 as photocatalyst activated with UV light. Also to indoor Air quality more and more attention is paid because of the very important role it plays on human health, and it can be influenced by many factors like ventilation system, building materials, furniture, cooking, and outdoor pollutants. The present work addresses the indoor Air Purification using photocatalytic oxidation. The photocatalytic reaction setup is introduced for the assessment of the indoor Air quality. A modified TiO2 that can be activated with visible light (VIS) is used as photocatalyst due to the shortage of UV light in indoor condition. One special wall paper is applied as the substrate for the coating of the photocatalyst in the present study. Nitric oxide (NO) is one typical indoor Air pollutant, which is used as target pollutant for the photocatalytic oxidation with indoor concentration level. Influential parameters like initial NO concentration, flow rate, relative humidity of the experimental environment, irradiance, photocatalyst dosage that can affect the PCO are studied. Furthermore, the second part content of the present study is introduced at the end of this paper.

C C Sorrell - One of the best experts on this subject based on the ideXlab platform.

  • photocatalytic materials and technologies for Air Purification
    Journal of Hazardous Materials, 2017
    Co-Authors: Pramod Koshy, Wenfan Chen, Shaohua Qi, C C Sorrell
    Abstract:

    Abstract Since there is increasing concern for the impact of Air quality on human health, the present work surveys the materials and technologies for Air Purification using photocatalytic materials. The coverage includes (1) current photocatalytic materials for the decomposition of chemical contaminants and disinfection of pathogens present in Air and (2) photocatalytic Air Purification systems that are used currently and under development. The present work focuses on five main themes. First, the mechanisms of photodegradation and photodisinfection are explained. Second, system designs for photocatalytic Air Purification are surveyed. Third, the photocatalytic materials used for Air Purification and their characteristics are considered, including both conventional and more recently developed photocatalysts. Fourth, the methods used to fabricate these materials are discussed. Fifth, the most significant coverage is devoted to materials design strategies aimed at improving the performance of photocatalysts for Air Purification. The review concludes with a brief consideration of promising future directions for materials research in photocatalysis.