1. Graphite, although being nonrenewable, which can be produced from coal formed underground and is widely used to produce graphene or as anode materials in recharge-
able lithium-ion batteries, has also been regarded abundant natural resource.
2.However, the manufacture of foam materials via freeze-drying method generally
involves the expensive facilities and intensive energy consumption.
3. Therefore, developing biodegradable foam materials from resource-abundant natural materials through an energy-efficient freeze-drying-free approach is highly required
4.The stability of foams has a negative relationship with the thickness of graphite flakes, which means the thinner the graphite flake is, the more stable the foam is.
5.As CNF features abundant oxygenated functional groups, the fibers have a strong tendency to absorb water and swell.
6.More attractively, the Cu-G-CNF foam demonstrated outstanding stability in both acid and
alkaline solution, presenting great potential to diverse application of the foam material .
7.At this size regime,the solvation environment of the ions, ion pair configuration, ion-
surface interactions, and ion motion can vastly differ from that inconventional porous materials with mesopores and macropores.
8.Taking the consideration with operation cost, removal efficiency and application scope, adsorption has been proved to be the most suitable means for CTC decontamination.
9.Metal–organic gels (MOGs), twin counterparts of metal–organic frameworks (MOFs), have attracted great interest in energy transformation, sensing, catalysis and adsorption with high surface areas, inherent hierarchical pore structures, stable chemical/mechanical features and abundant functional groups
10.Thus, we speculate that bimetallic MOGs with lanthanide elements may organically integrate adsorption and detection of pollutants simultaneously by the help of the increased active sites and extraordinary sensitive fluorescence-responses .因此，我们推测，具有镧系元素的双金属MOGs可能借助活性位点的增加和异常灵敏的荧光响应，将吸附和检测污染物有机地结合在一起