▎ 摘　　要

NOVELTY - Titanium net supporting cobalt-based metal organic framework graphene nano-sheet array is prepared by preparing cobalt-GR/metal organic framework (MOF) by one-step hot melting method, and preparing cobalt-GR/MOF/TM. In one-step hot melting method, graphene is added to N, N-dimethyl formamide, then cobalt chloride hexahydrate and terephthalic acid, mixing uniformly, continuously adding ethanol and ultra-pure water. USE - Titanium net supporting cobalt-based metal organic framework graphene nano-sheet array for detecting nitrogen dioxide concentration (claimed). ADVANTAGE - The graphene nano-sheet array has excellent sensing performance of nitrogen dioxide, good sensitivity, stability and low detection limit. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for use of titanium net supporting cobalt-based metal organic framework graphene nano-sheet array for detecting nitrogen dioxide concentration.