Hydrophobic nanocellulose aerogels with high loading of metal-organic framework particles as floating and reusable oil absorbents  

作　　者：Jiajia Li Shengcheng Zhai Weibing Wu Zhaoyang Xu 

机构地区：[1]Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forestry Resources,College of Materials Science and Engineering,Nanjing Forestry University,Nanjing,210037,China [2]College of Light Industry and Food Engineering,Nanjing Forestry University,Nanjing,210037,China

出　　处：《Frontiers of Chemical Science and Engineering》2021年第5期1158-1168,共11页化学科学与工程前沿（英文版）

基　　金：the Ministry of Education(Grant No.SWZ-ZD201906);the National Natural Science Foundation of China(Grant No.31770607).

摘　　要：In this paper,we employed a facile approach to prepare flexible and porous metal-organic frameworks(MOFs)containing cellulose nanofiber(CNF)aerogels(MNCAs)through freeze-drying MOF-containing cellulose nanofiber suspensions.After coating with methyltrimethoxysilane(MTMS)by chemical vapor deposition,recycled and hydrophobic MTMS-coated MNCAs(MMNCAs)were obtained.Due to the low density(0.009 g/cm^(3)),high porosity(97%)and good mechanical properties of the aerogel,the adsorption capacity of MMNCAs reached up to 210 g/g,which was nearly 3–5 times that of pure CNF aerogels.These prepared aerogels showed excellent oil/water selectivity and high capacity to adsorb oil and organic solvents.This kind of cellulose-based aerogel may be applicable in the field of environmental protection.

关 键 词：cellulose nanofibers AEROGELS metal-organic framework oil-adsorption 

分 类 号：O64[理学—物理化学]