Preparation method for magnetic carbon microsphere surface cephalexin molecular imprinted adsorbent material

The present invention relates to a preparation method for a magnetic carbon microsphere surface cephalexin molecular imprinted adsorbent material. The method comprises: taking a walnut shell as a carbon source to prepare a magnetic carbon microsphere; carrying out ethylene functionalized modification on the surface of the magnetic carbon microsphere by use of 3-(methacryloxy)propyl trimethoxysilane; taking cephalexin (CFX) as a template molecule, methacrylic acid (MAA) as a functional monomer, ethylene alcohol dimethacrylate (EGDMA) and N, N- methylene bisacrylamide (BIS) as a crosslinking agent, and cetane as a porogenic diluent and an organic solvent to prepare a magnetic carbon microsphere surface imprinted adsorbent. The magnetic carbon microsphere surface imprinted adsorbent material prepared by the method disclosed by the invention is low in cost and simple in preparation, and has high recognition, high selectivity, and high separation enrichment capacity on target molecules, and a high absorption speed.