▎ 摘　　要

NOVELTY - Preparation of graphene-coated molecular sieve composite electrode material involves preparing graphene oxide (GO), preparing molecular sieve (4A)/reduced graphene oxide (RGO) composite electrode material, and preparing molecular sieve/reduced graphene oxide electrode. USE - Preparation of graphene-coated molecular sieve composite electrode material used for super capacitor electrode material. ADVANTAGE - The method is simple and suitable for large scale production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of quantum dot coded magnetic microsphere, which involves preparing aqueous dispersion of polyethyleneimine-modified carboxy-modified magnetic polystyrene microspheres by placing 30 mg carboxyl-modified magnetic polystyrene microspheres in centrifuge tube separating the supernatant, washing using 4-morpholinethanesulfonic acid (MES) buffer solution for 3 times and separating the supernatant, adding 3 mg/mL carbodiimide and 80 mg/mL polyethyleneimine and dispersing ultrasonically for 3 hours, removing supernatant by magnetic separation, washing with pure water 3 times and dispersing.