A Nanoprotein-Functionalized Hierarchical Composite Air Filter

• DOI: 10.1021/acssuschemeng.8b01827
• Publication Date: 2018-07-20T01:05:59Z
• Authors: Xin Fan; Yu Wang; Lushi Kong; Xuewei Fu; Min Zheng; Tian Liu; Wei-Hong Zhong; Siyi Pan
• Keywords: Nanocellulose; Electrospinning; Air filter; Filtration (mathematics)

Building nanostructured active materials and rational porous structures in air filters will be significant realizing high filtration efficiency low normalized pressure drop. The construction of nanofabrics by electrospinning can lead to large surface areas, but it has been challenging control the reduce drop, particular for thick fabrics. To address this issue, here, we report a protein-functionalized composite filter with hierarchical structures. This is made bacterial nanocellulose coated protein nanoparticles microcellulose fibers from wood pulp. not only help expose functional groups trapping pollutants also act as binder reinforce At same time, long form pores, reducing drop improving mechanical properties. By adjusting component ratios, demonstrate high-performance protein/nanocellulose/microcellulose above 99.5% PM1–2.5 extremely 0.194 kPa/g, which about 1% that constructed electrospinning. study brings cost-effective strategy based on fabrics fabrication an advanced, green, sustainable filter.