Development and Application of Chemical Actinometer to Measure of Light Intensity in Photo-Sterilizer

光消毒器光强测量化学光度计的研制及应用

• 批准号: 12650771
• 负责人: FUNAYAMA Hitoshi
• 金额: $ 0.38万
• 依托单位: Akita National college of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12650771/
• 关键词: Chemical Actinometer; Rose Bengal; Photo-stelirizer; Light Intensity; Coliform bacillus; Reactor Design; 光殺菌; 量子収率; 光触媒

Recently, it pays attention to the photo resolution process of the harmful organic substance, the photo sterilization process that a main wavelength made the low pressure mercury lump of 253.7nm as light source. It is hoping for the establishment of the way of measuring it easily of the light intensity.So, the development experiment of chemical actinometer to measure the light intensity was done by using the Rose Bengal aqueous solution in this research. Reaction characteristics was look for from the relations between the photo irradiation time and the concentration when initial concentration, reaction temperature, distance of between the light source and the reactor were changed by the batch operation. Next, it was examined about the influence exerted on the extinction rate of the coliform bacillus that TiO_2 photo catalytic thin film by using this actinometer from the illumination intensity side.It found out the following thing as a result. A reaction was second order reaction, depended on the initial concentration and reaction temperature. Reaction rate decreased

近年来，有害有机物的光分解过程、以253.7nm的低压汞块为光源的主波长的光杀菌过程受到关注。为了建立一种简便的光强测量方法，本研究利用虎红水溶液进行了光强测量化学光度计的研制实验。通过间歇操作，改变初始浓度、反应温度、光源与反应器之间的距离，从光照时间与浓度的关系中寻找反应特性。其次，使用该光强度计从光照强度方面考察了TiO_2光催化薄膜对大肠杆菌的消光率的影响，结果发现：A反应为二级反应，与初始浓度和反应温度有关。反应速率降低

项目成果

H.Muto: "formation by heterogeneous thermal reactions of phenols and their TiO_2 photocatalytic degradation by batch-recycle system."Chemsphere. 45. 129-136 (2001)

H.Muto：“酚类非均相热反应的形成及其间歇循环系统的 TiO_2 光催化降解。”Chemsphere。

H.Muto: "PCDD/D formation by heterogeneous thermal reactions of phenols and their TiO2 photocatalytic degradation by batch-recyclesystem"Chemshere. 45. 129-136 (2001)

H.Muto：“酚类非均相热反应形成 PCDD/D 及其通过间歇循环系统光催化降解 TiO2”Chemshere。