Binuclear cuprous complex luminescent material and fluorescence sensing application thereof to VOC (volatile organic compounds) such as acetophenone

The invention discloses a ligand-bridged binuclear cuprous complex luminescent material and a preparation method thereof, and application of the material to fluorescence sensing of VOC (volatile organic compounds) such as acetophenone. The structural formula of the luminescent material is (POP) 2Cu2 (4, 4 '-bipy) (CH3CN) 2 (PF6) 2, in the formula, POP is bis (2-diphenylphosphine) phenyl ether as a diphosphine ligand, and 4, 4'-bipy is 4, 4 '-bipyridine as a bridge ligand; the complex is prepared by reaction of cuprous ions and two ligands. Fluorescent sensing response can be selectively carried out on acetophenone in various VOC (volatile organic compound) atmospheres, especially in various VOC atmospheres; for pyridine and 4-methylpyridine, a fluorescence discoloration phenomenon is also shown in addition to quenching response; the method also has a quenching type response behavior on tetrahydrofuran and ammonia gas, and the response speed is obviously slower than the quenching speed of acetophenone; the mat