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1 什么是纳米?纳米是一种长度单位,1纳米等于1米的10亿分之一,相当于10个氢原子一个挨一个排列起来的长度。人的头发丝大概有7～8万纳米。打个形象的比喻,如果1米相当于地球的大小,那么,1纳米仅仅为1个乒乓球的大小。2 什么是纳米材料?纳米材料是指颗粒粒径在1～100纳米之间,并具有特殊的物理化学性能的材料,广义的纳米材料包括在三维结构中有一维的长度在1～100纳米之间或者具有纳米结构的材料。纳米材料具有很多神奇的性能,如果面效应、小尺寸效应、宏观量子效应、光催化效应等。
1 What is nanometer? Nanometer is a unit of length, 1 nanometer is equal to 1 billionth of a meter, equivalent to 10 hydrogen atoms arranged one by one in length. Human hair wire about 7 to 80,000 nanometers. To make an analogy, if 1 meter is equivalent to the size of the earth, then 1 nanometer is just a table tennis size. 2 What is nanomaterials? Nanomaterials are particles with a particle size between 1 and 100 nanometers, and have special physical and chemical properties of materials, generalized nanomaterials include three-dimensional structure in the one-dimensional length of 1 to 100 nanometers Or with nanostructured materials. Nanomaterials have many amazing properties, such as surface effect, small size effect, macroscopic quantum effect, photocatalytic effect and so on.