文献类型：期刊文献

英文题名：Developing Flexible and Antibacterial Cellulose Nanofibril/Lignin Nanospheres@Citral Composite Aerogel for High-Efficiency Pm2.5 Capture

作者：Chen, Yifan[1] Cai, Yuxin[1] Wang, Enfu[1] Liang, Yipeng[1] Miao, Yu[1] Sheng, Kuichuan[2] Zhong, Yong[3] Zhang, Wenbiao[1] Huang, Jingda[1,2]

第一作者：Chen, Yifan

机构：[1] Bamboo industry institute, Zhejiang A&F University, Hangzhou, 311300, China; [2] College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China; [3] Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing, 100091, China

年份：2024

外文期刊名：SSRN

收录：EI(收录号：20240271476)

语种：英文

外文关键词：Aerogels - Cellulose - Hydrophobicity - Nanofibers - Nanospheres - Reusability - Temperature

摘要：Air purification is one of the keys to improve people's living environment and disease prevention, but it is difficult for air filters to achieve both efficient air filtration and excellent sterilization. Herein, an environmentally friendly and flexible cellulose nanofiber (CNF)/lignin nanospheres (LNP) composite aerogel with double filtration network structure was constructed by mixing CNF as the skeleton, LNP as the antibacterial agent carrier and methyltrimethoxysilane (MTMS) as the hydrophobic modifier, followed by freeze drying and drying at low temperature. In the system, each component forms a three-dimensional network structure by intertwining to mechanically block PM2.5 ; lignin coated citral (LNP@Citral) to control its loss, so that it has a good bactericidal effect, can kill the bacteria carried by PM2.5; MTMS not only plays a mechanical enhancement role, but also plays a hydrophobic role, which improves the reusability of the material. The prepared aerogels have high porosity, hydrophobicity (134.3°), superelasticity, foldability, antibacterial properties, high filtration performance for PM2.5 (99.46%) and low pressure drop (36.7 Pa). This work provides a new strategy to develop green multifunctional air filters. ? 2024, The Authors. All rights reserved.