淡江大學機構典藏:Item 987654321/122610
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    题名: Application of high specific surface area Ag/AgCl/TiO2 coupled photocatalyst fabricated by fused filament fabrication
    作者: Lin, Ching‑bin
    关键词: Silver chloride;Fused filament fabrication;Methyl blue dye;Escherichia coli;Reliability
    日期: 2022-03-17
    上传时间: 2022-03-23 12:11:20 (UTC+8)
    摘要: This study used a three-dimensional (3D) printing process to develop the Ag/AgCl/TiO2 coupled photocatalyst with a specific surface area of 748 mm2/g. We examined the catalytic capability of this photocatalyst in degrading methyl blue (MB) dye and sterilizing Escherichia coli as well as the durability and reliability of its continuous use. A TiO2 module was constructed through fused filament fabrication (FFF), and the adopted 3D printing filament was composed of anatase TiO2 nanoparticles, stearic acid, wax, and a plasticizer. The green compact of the TiO2 module was subjected to solvent debinding, thermal debinding, and sintering to obtain a fundamental structure that was subsequently coupled with AgCl through a precipitation reaction. Ultraviolet radiation was used for the photoreduction to obtain the Ag/AgCl/TiO2 coupled photocatalyst coupling module. This photocatalyst can effectively degrade MB dye and disinfect E. coli. The degradation of MB dye and sterilization of E. coli were conducted under visible and ultraviolet light. The degradation of MB dye by the Ag/AgCl/TiO2 coupled photocatalyst was a first-order reaction. In addition, this coupled photocatalyst could retain its MB dye degradation rate (95%) for five cycles. E. coli was sterilized using the prepared photocatalytic module in a 120-min test, and this sterilization phenomenon could be presented as a hyperbolic reaction. The photocatalytic module manufactured in this study through FFF could efficiently degrade pollutants in water, and its durability and reliability after repeated use have been approved.
    關聯: The International Journal of Advanced Manufacturing Technology 120,　p.4539-4550
    DOI: 10.1007/s00170-022-09038-x
    显示于类别:[機械與機電工程學系暨研究所] 期刊論文

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