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Taoda, Hisoshi 전남대학교 촉매연구소 2000 觸媒硏究 論文集 Vol.21 No.-
In order to realize environmental purification using photocatalyst, it is necessary to develop the fixation of photocatalyst and high activity photo-catalyst. We have developed TiO2 transparent film photocatalyst with super-activity of anti-vactereo, TiO2 thin film photocatalyst coated on floating bead with high activity of oil decomposition, TiO2 transparent film photo-catalyst coated on silica-gel bead with excellent activity of dye decomposition, and TiO2 thin filmphotocatalyst thin filmphotocatalyst coated on sound absorbing board with high activity of Nox removal.
Tao, Da,Liu, Zhaopeng,Diao, Xiaofeng,Tan, Haibo,Qu, Xingda,Zhang, Tingru Korean Nuclear Society 2021 Nuclear Engineering and Technology Vol.53 No.5
Demographics, personality traits and attitudes are related to safety behaviors in varied workplaces, but their roles in nuclear power plants (NPPs) have not been fully understood. This study was conducted to explore the roles of a set of demographic, personality and attitudinal factors on self-reported safety behaviors (including safety participation and human errors) among NPP commissioning workers. Survey data were collected from 157 Chinese commissioning workers. Results showed that age and work experience were significantly associated with human errors, but not with safety participation. Neuroticism and conscientiousness were significantly related to human errors, while neuroticism, conscientiousness and agreeableness were significantly related to safety participation. Attitude towards questioning was observed as an antecedent of safety participation, and functioned as a mediating variable in the relation between conscientiousness and safety behaviors. The findings provide evidence-based implications on the design of diverse interventions and strategies for the promotion of safety behaviors in NPPs.
Thin Film Coating of Photocatalytics on Ultra Light Light Ceramic Tile by Use of Supercritical Fluid
Kato, Shigekazu,Kato, Shinji,Taoda, Hiroshi,Katoh, Shunsaku 전남대학교 촉매연구소 2000 촉매학술발표회 Vol.- No.17
Although sol-gel method is an easy procedure to form a thin film, it's extremely difficult to coat on the surface of small size particles, fibers, and fiber ceramics, because concentration occurs by capillary phenomena and causes peeling or breakage of film. In order to solve this problem, we use supercritical CO_2 rapid expansion from supercritical solution (RESS), nano-sized particles of TiO_2 with high intensity can be sprayed out of a nozzle, then collected on the surface of substrates, but can be absorbed into fibers or porous materials, being not interfered by viscosity of a solution. TiO_2 sol made b hydrolysis process is set in a pressure cell and mixed together with super-critical CO_2. Controlling the pressure and the temperature, we could obtain TiO_2 sol ad super critical fluid mixture, and then discharge to the substrate. At this point, Titania sol viscosity is so low that a surface wettability of the substrate becomes negligible. By the use of the characteristics of the supercritical fluid, without constraint condition of viscosity or capillarity, this sol can penetrate into the interstices of the substance's structure. Thus, clearing obstruction of capillary phenomena, supercritical fluid coating method shows its capability to penetrate deep into inside of entangled fiber of the three-dimensional structure so as considered to be a heat resistant filter with 95% porosity.
Thin Film Coating of Photocatalytics on Ultra Light Ceramic Tile by Use of Supercritical Fluid
Kato, Shigekazu,Kato, Shinji,Taoda, Hiroshi,Katoh, Shunsaku 전남대학교 촉매연구소 2001 觸媒硏究 論文集 Vol.22 No.-
Although sol-gel method is an easy procedure to form a thin film, it's extremely difficult to coat on the surface of small size particles, fibers, and fiber ceramics, because concentration occurs by capillary phenomena and causes peeling or breakage of film. In order to solve this problem, we use supercritical CO₂ rapid expansion from supercritical solution (RESS), nano-sized particles of TiO₂ with high intensity can be sprayed out of a nozzle, then collected on the surface of substrates, but can be absorbed in fibers or porous materials, being not interfered by viscosity of a solution. TiO₂ sol made by hydrolysis process is set in a pressure cell and mixed together with super-critical CO₂. Controlling the pressure and the temperature, we could obtain TiO₂ sol and super critical fluid mixture, and then discharge to the substrate. At this point, Titania sol viscosity is so low that a surface wettability of the substrate becomes negligible. By the use of the characteristics of the supercritical fluid, without constraint condition of viscosity or capillarity, this sol can penetrate into the interstices of the substance's structure. Thus, clearing obstruction of capillary phenomena, supercritical fluid coating method shows its capability to penetrate deep into inside of entangled fiber of the three-dimensional structure so as considered to be a heat resistant filter with 95% porosity.