▎ 摘　　要

NOVELTY - Preparing graphene quantum dot using SBA-15 microreactor comprises e.g. (i) dispersing SBA-15 in aluminum chloride-containing ethanol solution, stirring, placing mixture in rotary evaporator, (ii) impregnating AlSBA-15 and furfuryl alcohol (FA) on the surface, and then removing excess furfuryl alcohol in oven, (iii) grinding solid perfluoroalkoxy alkane-SBA-15 into powder, and (iv) adding carbon/SBA-15 into Teflon reactor, adding deionized water for permeation, concentrating by rotary evaporation and freeze-drying to obtain uniform size of graphene quantum dots. USE - The graphene quantum dot is useful for preparing molecularly imprinted fluorescence sensor and bisphenol A surface molecularly imprinted fluorescence sensors (all claimed). ADVANTAGE - The graphene quantum dot improves identification on the target molecule, and its response speed. DETAILED DESCRIPTION - Preparing graphene quantum dot using SBA-15 microreactor comprises (i) dispersing SBA-15 in aluminum chloride-containing ethanol solution, stirring, placing mixture in rotary evaporator for rotary evaporation and evaporating to dryness, transferring solid to tube furnace in air, burning to obtain aluminum-SBA-15, (ii) impregnating AlSBA-15 and furfuryl alcohol (FA) on the surface, and then removing excess furfuryl alcohol in oven to obtain perfluoroalkoxy alkane-SBA-15, (iii) grinding solid perfluoroalkoxy alkane-SBA-15 into powder, transferring into tube furnace, burning, polycondenzing under nitrogen gas stream in perfluoroalkoxy alkane-SBA-15 pore wall to form thin layer of carbon/SBA-15, and (iv) adding carbon/SBA-15 into Teflon reactor, then adding concentrated nitric acid, eluting graphene quantum dot, performing hydrothermal reaction to obtain yellow filtrate, adding deionized water for permeation, removing excess acid, concentrating by rotary evaporation and freeze-drying to obtain uniform size of graphene quantum dots. INDEPENDENT CLAIMS are also included for: (1) graphene quantum dot obtained by above method; and (2) preparing bisphenol A surface molecularly imprinted fluorescence sensor using graphene quantum dot comprising adding methanol and graphene oxide into three-necked flask for ultrasonic dispersion, then adding bisphenol A to self-assemble methanol solution of methyl methacrylate, L-phenylalanine methyl ester and graphene quantum dot, stirring overnight, placing mixture in water bath, adding ethylene glycol dimethacrylate and azobisisobutyronitrile, initiating polymerization under nitrogen atmosphere, washing product with methanol and drying in vacuum, performing soxhlet extraction with methanol/acetic acid mixed solution, and vacuum drying.