Functional geopolymeric materials capable of reducing hydrocyanic acid in cigarette smoke and application thereof

The invention belongs to the technical field of reduction of harm of tobaccos and lowering of tars, and particularly discloses functional geopolymeric materials capable of reducing hydrocyanic acid incigarette smoke and application thereof. The functional geopolymeric materials are geopolymer loaded with chitosan and metal ions; and a geopolymer composite substrate is synthesized by using the chitosan, sodium hydroxide, sodium silicate and nano-clay, and the functional geopolymeric materials are obtained by dipping the geopolymer composite substrate with metal ion solutions. The synthesizingprocess is simple, the cost is low, the metal ions and the chitosan are loaded firmly on the geopolymer, the stability is high, and the activity is high. The functional geopolymeric materials disclosed by the invention are high in selectivity and high in absorption ratio; and the functional geopolymeric materials are added in a cigarette filter, so that the release capacity of the hydrocyanic acidin the cigarette smoke can