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/cm³), 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.

在本文中，我们采用一种简便的方法通过冷冻干燥含有MOF的纤维素纳米纤维悬浮液来制备包含纤维素纳米纤维（CNF）气凝胶（MNCA）的柔性多孔金属有机骨架（MOF）。通过化学气相沉积法涂覆甲基三甲氧基硅烷（MTMS）之后，获得了回收的疏水MTMT涂层的MNCA（MMNCA）。由于气凝胶的低密度（0.009 g / cm ³），高孔隙率（97％）和良好的机械性能，MMNCAs的吸附容量高达210 g / g，几乎是纯气凝胶的3-5倍。 CNF气凝胶。这些制备的气凝胶显示出优异的油/水选择性和高吸附油和有机溶剂的能力。这种基于纤维素的气凝胶可适用于环境保护领域。