▎ 摘　　要

NOVELTY - Macroporous hydrogel capable of photo-thermal conversion function, is claimed. The macroporous hydrogel is prepared by mixing organosilicon compound, water-soluble polymerizable monomer, photo-thermal conversion material, initiator and water, releasing gas while polymerizing and cross-linking the water-soluble polymerizable monomers to form a foaming system to obtain final product; where the organosilicon compound is (I). USE - The macroporous hydrogel capable of photo-thermal conversion function is useful in atmospheric water collection and seawater purification. ADVANTAGE - The method: utilizes silicon-nitrogen bond-containing organosilicon compound which generate gas during gelation process, and utilizes one-pot method to produce foaming hydrogel; is easy to operate; and can adjust the density of the cells in the hydrogel by adjusting the amount of the silicon-nitrogen bond-containing organosilicon compound. The macroporous hydrogel: has absorbance of 100%, and high moisture absorption rate. DETAILED DESCRIPTION - Macroporous hydrogel capable of photo-thermal conversion function, is claimed. The macroporous hydrogel is prepared by mixing organosilicon compound, water-soluble polymerizable monomer, photo-thermal conversion material, initiator and water, releasing gas while polymerizing and cross-linking the water-soluble polymerizable monomers to form a foaming system to obtain final product; where the organosilicon compound is of formula (I). R1-R3, and R10-R12= 1-5C alkyl; R4, R5 = 3-6C alkylene; and R6-R9= methyl, ethyl or propyl.