The high porosity and large surface area of SiO2 aerogels make it have amazing adsorption capacity. It is found that the removal rate of dyes in dye wastewater by amino modified SiO2 aerogels is 90% ~ 100%, so the amino modified nano SiO2 aerogel is an effective material to purify wastewater containing dyestuff .[16]
Prospects and prospects
After the invention of aerogels in the 1930s, due to the high preparation cost and defects in the preparation process, it has not received much attention from the outside world. Even at present, how to further improve the process, shorten the preparation time, and improve the production rate is the main bottleneck that hinders the expansion and application of aerogel. On the other hand, aerogels are being used in more and more fields due to their superior heat insulation, catalysis, adsorption, insulation and other properties.Therefore, with the continuous improvement of the preparation process, the supermaterials represented by aerogels will be more widely used in more fields and create more social and economic value.  
Reference