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Int. J. Mol. Sci. 2015, 16(11), 27721-27729; doi:10.3390/ijms161126055

Safety Profile of TiO2-Based Photocatalytic Nanofabrics for Indoor Formaldehyde Degradation

China Textile Academy, Jiangnan Branch, Shaoxing 312000, China
School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China
Author to whom correspondence should be addressed.
Academic Editor: Kevin D. Belfield
Received: 29 September 2015 / Revised: 2 November 2015 / Accepted: 11 November 2015 / Published: 19 November 2015
(This article belongs to the Collection Bioactive Nanoparticles)
View Full-Text   |   Download PDF [2445 KB, uploaded 19 November 2015]   |  


Anatase TiO2 nanoparticles (TNPs) are synthesized using the sol-gel method and loaded onto the surface of polyester-cotton (65/35) fabrics. The nanofabrics degrade formaldehyde at an efficiency of 77% in eight hours with visible light irradiation or 97% with UV light. The loaded TNPs display very little release from nanofabrics (~0.0%) during a standard fastness to rubbing test. Assuming TNPs may fall off nanofabrics during their life cycles, we also examine the possible toxicity of TNPs to human cells. We found that up to a concentration of 220 μg/mL, they do not affect viability of human acute monocytic leukemia cell line THP-1 macrophages and human liver and kidney cells. View Full-Text
Keywords: TiO2 nanoparticle; formaldehyde degradation; photocatalytic agent; cytotoxicity; nano safety TiO2 nanoparticle; formaldehyde degradation; photocatalytic agent; cytotoxicity; nano safety

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Cui, G.; Xin, Y.; Jiang, X.; Dong, M.; Li, J.; Wang, P.; Zhai, S.; Dong, Y.; Jia, J.; Yan, B. Safety Profile of TiO2-Based Photocatalytic Nanofabrics for Indoor Formaldehyde Degradation. Int. J. Mol. Sci. 2015, 16, 27721-27729.

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