Geopolymer has become a good material for heavy metal pollution treatment due to its low cost, environmental friendliness, high compressive strength, acid resistance and high temperature resistance. First, the types, preparation methods, and alkaline activation mechanism of geopolymers are introduced. Subsequently, the interaction mechanism between geopolymer and heavy metal is described. Then, the important factors affecting the treatment of heavy metal ions by geopolymers, such as the geopolymers Si/Al molar ratio, heavy metal species and reaction conditions are discussed. Finally, the probl...
