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Flexible hydroxyapatite ultralong nanowire-based paper for highly efficient and multifunctional air filtration
Xiong, Zhi-Chao1; Yang, Ri-Long1,2; Zhu, Ying-Jie1,2; Chen, Fei-Fei1,2; Dong, Li-Ying1
2017
发表期刊Journal of Materials Chemistry A
ISSN20507488
卷号5期号:33页码:17482-17491
摘要Fine particulate matter (PM) air pollution has been attracting much attention due to its great threat to human health. Herein, we report a new kind of air filter paper with high removal efficiencies for PM2.5and PM10prepared using ultralong hydroxyapatite (HAP) nanowires and cotton (CT) fibers as building blocks through a simple vacuum filtration process. Flexible and biocompatible ultralong HAP nanowires with lengths over 200 μm and diameters of approximately 20 nm are employed for significant improvement of the air filtration performance of commercial CT fibers. The ultralong HAP nanowires intertwine with CT fibers and form the highly porous HAP/CT air filter paper. In addition, by optimizing the proportion of HAP and CT, the as-prepared HAP/CT air filter paper exhibits high removal efficiencies of over 95% for PM2.5and PM10; more importantly, it shows a lower pressure drop and a smaller thickness than a commercial breathing mask. Moreover, the fabrication of a large-sized HAP/CT air filter paper with desirable properties through a commercial sheet former is demonstrated. As a proof-of-concept, a homemade breathing mask is fabricated by imbedding the HAP/CT air filter paper into a commercial breathing mask. Furthermore, benefiting from the unique characteristics of ultralong HAP nanowires, other functions such as antibacterial activity can be achieved by the immobilization of silver nanoparticles as the representative bactericide, enabling the fabrication of multifunctional air filter paper. The experimental results suggest that the ultralong HAP nanowire-based air filter paper is promising for various applications in the environmental field. © 2017 The Royal Society of Chemistry.
DOI10.1039/c7ta03870d
EI入藏号20173504098331
EI主题词Air filters
EI分类号451.2 Air Pollution Control - 461.7 Health Care - 461.9.1 Immunology - 761 Nanotechnology - 804.2 Inorganic Compounds - 811.1 Pulp and Paper - 913.1 Production Engineering - 933 Solid State Physics - 951 Materials Science
引用统计
文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25784
专题中国科学院上海硅酸盐研究所
作者单位1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China
推荐引用方式
GB/T 7714
Xiong, Zhi-Chao,Yang, Ri-Long,Zhu, Ying-Jie,et al. Flexible hydroxyapatite ultralong nanowire-based paper for highly efficient and multifunctional air filtration[J]. Journal of Materials Chemistry A,2017,5(33):17482-17491.
APA Xiong, Zhi-Chao,Yang, Ri-Long,Zhu, Ying-Jie,Chen, Fei-Fei,&Dong, Li-Ying.(2017).Flexible hydroxyapatite ultralong nanowire-based paper for highly efficient and multifunctional air filtration.Journal of Materials Chemistry A,5(33),17482-17491.
MLA Xiong, Zhi-Chao,et al."Flexible hydroxyapatite ultralong nanowire-based paper for highly efficient and multifunctional air filtration".Journal of Materials Chemistry A 5.33(2017):17482-17491.
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