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

International Journal of Molecular Sciences

Guixin Cui³  Yan Xin¹  Xin Jiang³  Mengqi Dong¹  Junling Li³  Peng Wang²  Shumei Zhai¹  Yongchun Dong²  Jianbo Jia¹  Bing Yan¹ 

[1] School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China;School of Textiles, Tianjin Polytechnic University, Tianjin 300387, China;China Textile Academy, Jiangnan Branch, Shaoxing 312000, China;

关键词: TiO₂ nanoparticle;    formaldehyde degradation;    photocatalytic agent;    cytotoxicity;    nano safety;   

DOI  :  10.3390/ijms161126055

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.