▎ 摘　　要

NOVELTY - Preparing graphene oxide/silicon dioxide (GO/SiO2) humidity sensitive material, comprises providing silicon dioxide microspheres, using poly(diallyldimethylammonium chloride) (PDDA) to modify the surface of the silicon dioxide microsphere to obtain a modified silicone dioxide micro-sphere, and covering the modified silicon dioxide micro sphere by GO to obtain the GO/SiO2humidity-sensitive material. USE - Method for preparing graphene oxide/silicon dioxide humidity sensitive material. ADVANTAGE - The method is simple in preparation process, has high sensitivity, and fast response and recovery characteristics, and applied to agricultural humidity detection. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a humidity sensor which comprises the GO/SiO2 humidity sensitive material.