[논문]Polydopamine (PDA)-TiO2 코팅 유리섬유 직물을 이용한 VOCs의 저감 성능 및 항균성 연구

박서현; 최예인; 이홍주; 박찬규

doi:10.5668/jehs.2021.47.6.540

Polydopamine (PDA)-TiO2 코팅 유리섬유 직물을 이용한 VOCs의 저감 성능 및 항균성 연구
Reduction of VOCs and the Antibacterial Effect of a Visible-Light Responsive Polydopamine (PDA) Layer-TiO2 on Glass Fiber Fabric 원문보기

韓國環境保健學會誌 = Journal of environmental health sciences, v.47 no.6, 2021년, pp.540 - 547

박서현 (한국산업기술시험원 환경기술본부) , 최예인 (한국산업기술시험원 환경기술본부) , 이홍주 (한국산업기술시험원 환경기술본부) , 박찬규 (한국산업기술시험원 환경기술본부)

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Background: Indoor air pollutants are caused by a number of factors, such as coming in from the outside or being generated by internal activities. Typical indoor air pollutants include nitrogen dioxide and carbon monoxide from household items such as heating appliances and volatile organic compounds from building materials. In addition there is carbon dioxide from human breathing and bacteria from speaking, coughing, and sneezing. Objectives: According to recent research results, most indoor air pollution is known to be greatly affected by internal factors such as burning (biomass for cooking) and various pollutants. These pollutants can have a fatal effect on the human body due to a lack of ventilation facilities. Methods: We fabricated a polydopamine (PDA) layer with Ti substrates as a coating on supported glass fiber fabric to enhance its photo-activity. The PDA layer with TiO2 was covalently attached to glass fiber fabric using the drop-casting method. The roughness and functional groups of the surface of the Ti substrate/PDA coated glass fiber fabric were verified through infrared imaging microscopy and field emission scanning electron microscopy (FE-SEM). The obtained hybrid Ti substrate/PDA coated glass fiber fabric was investigated for photocatalytic activity by the removal of ammonia and an epidermal Staphylococcus aureus reduction test with lamp (250 nm, 405 nm wavelength) at 24℃. Results: Antibacterial properties were found to reduce epidermal staphylococcus aureus in the Ti substrate/PDA coated glass fiber fabric under 405 nm after three hours. In addition, the Ti substrate/PDA coated glass fiber fabric of VOC reduction rate for ammonia was 50% under 405 nm after 30 min. Conclusions: An electron-hole pair due to photoexcitation is generated in the PDA layer and transferred to the conduction band of TiO2. This generates a superoxide radical that degrades ammonia and removes epidermal Staphylococcus aureus.

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Polydopamine (PDA)-TiO2 코팅 유리섬유 직물을 이용한 VOCs의 저감 성능 및 항균성 연구
Reduction of VOCs and the Antibacterial Effect of a Visible-Light Responsive Polydopamine (PDA) Layer-TiO2 on Glass Fiber Fabric 원문보기

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Polydopamine (PDA)-TiO2 코팅 유리섬유 직물을 이용한 VOCs의 저감 성능 및 항균성 연구 Reduction of VOCs and the Antibacterial Effect of a Visible-Light Responsive Polydopamine (PDA) Layer-TiO2 on Glass Fiber Fabric 원문보기

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Polydopamine (PDA)-TiO2 코팅 유리섬유 직물을 이용한 VOCs의 저감 성능 및 항균성 연구
Reduction of VOCs and the Antibacterial Effect of a Visible-Light Responsive Polydopamine (PDA) Layer-TiO2 on Glass Fiber Fabric 원문보기