Silk nanofibers as high efficient and lightweight air filter  

作　　者：Chunya Wang Shuyi Wu Muqiang Jian Jiarong Xie Luping Xu Xudong Yang Quanshui Zheng Yingying Zhang 

机构地区：[1]Department of Chemistry & Center for Nano and Micro Mechanics,Tsinghua University,Beijing 100084,China [2]Department of Engineering Mechanics & Center for Nano and Micro Mechanics,Tsinghua University,Beijing 100084,China [3]Department of Building Science,Tsinghua University,Beijing 100084,China

出　　处：《Nano Research》2016年第9期2590-2597,共8页纳米研究（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China (Nos.21203107,51422204,and 51372132) and the National Basic Research Program of China (No.2013CB228506).

摘　　要：Silk is a widely available, edible, biocompatible, and environmentally sustainable natural material. Particulate matter (PM) pollution has drawn considerable attention because it is a serious threat to public health. Herein, we report a human-friendly silk nanofiber air filter, which exhibits superior filtration efficiency for both PM2.5and submicron particles with obviously low pressure drop and low basis weight compared to typical commercial microfiber air filters. Additionally, other functions such as antibacterial activity could be easily integrated into the silk nanofiber air filters, enabling the fabrication of multifunctional air filters. All the above characteristics, combined with the natural abundance and biocompatibility of silk, suggest a great potential for the use of silk nanofibers as air filters, especially as comfortable and personal air purifiers. [Figure not available: see fulltext.] © 2016, Tsinghua University Press and Springer-Verlag Berlin Heidelberg.Silk is a widely available, edible, biocompatible, and environmentally sustainable natural material. Particulate matter (PM) pollution has drawn considerable attention because it is a serious threat to public health. Herein, we report a human-friendly silk nanofiber air filter, which exhibits superior filtration efficiency for both PM2.5and submicron particles with obviously low pressure drop and low basis weight compared to typical commercial microfiber air filters. Additionally, other functions such as antibacterial activity could be easily integrated into the silk nanofiber air filters, enabling the fabrication of multifunctional air filters. All the above characteristics, combined with the natural abundance and biocompatibility of silk, suggest a great potential for the use of silk nanofibers as air filters, especially as comfortable and personal air purifiers. [Figure not available: see fulltext.] © 2016, Tsinghua University Press and Springer-Verlag Berlin Heidelberg.

关 键 词：silk nanofibers air filtration PM2.5 submicron particles LIGHTWEIGHT 

分 类 号：TB3[一般工业技术—材料科学与工程]